Parts lookup

[Boom Sounds]

Hi all,

I have been using the AC Delco site to identify parts to ship over to the UK. It allows you to do this by VIN, which is handy, and it seems to bring up precisely the right variant e.g. 1991 7.4 454 4L80E with engine type N......which is great. However, on a few items, when I key them into Amazon, it says the part doesn't fit my vehicle. A good example being the spark plugs. Amazon only looks up by make, year and P30, so it feels less sophisticated. On occaision, it asks for the engine variant.

Do you have any tips on how I can maximise my chances of ordering the correct bits? Do you think I can rely on the Delco site?

thanks
Nick

[perryg114]

You might try Rock Auto. They have everything under the sun. I don't know if they ship overseas or not but I don't see why they would not.

http://www.rockauto.com/

Perry

[Boom Sounds]

Hi - thanks for the response. Rockauto do ship overseas and they are a good supplier, but they don't have VIN lookup. I'm trying to establish how reliable VIN lookup is eg on the AC Delco site for identifying the correct bits for the P30 Motorhome. It's complicated because I think they changed things in 1991, so i can't go by the year alone, which is what most sites, including Rockauto, offer


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[bkahler]

Nick, buying parts online is tough no matter how you look at it. At best you have pictures from the supplier to compare and unfortunately at times they don't even have pictures.

I basically try to do cross checking among various vendors to try and get a feel for what is offered. If they all offer the same thing for a given part the odds are in your favor. If you see a variety of different parts then you need to look closely at what you have and proceed with caution.

I have many parts sitting on the shelf for my Argosy that were purchased and ended up not being the right part. The sad part is it's usually cost prohibitive to return the parts. If I'm in doubt I try to buy locally so I can compare the parts.

Brad

[perryg114]

What parts are you looking for?

Perry

[pago cruiser]

I started a thread over in Land Yachts for parts I found that work... and don't. I try to post pics of relevant items.

For whatever reason, does not seem like a lot of interest. I have no idea why not, as this info is relevant to everybody with the same models, and very useful to those with similar models. This is an odd site like that - but not one comment, and no contributors.

I am just now heading out to three different stores returning non-fitting brake power booster, master cylinder, upper and lower ball joints, radiator hoses, brake cables, tie rod ends, windshield wipers, air filter, wheel bearings, seals, etc. By my receipts almost $600 worth of stuff. This is my 2nd round of returns. A couple weeks ago I returned a bit over $400 worth, mostly suspension stuff.

In the last few weeks I have returned via online merchants timing chains/sprockets, parking brake cables, brake hoses, power steering and oil cooler hoses.

If you can avoid it, highly recommended to remove the part you need, then look around local, comparing the old with the new.

Take a look over at the Land Yacht post and maybe you will get lucky...

For what it's worth, I have 2 returns (out of 4 purchases) going back to Rock Auto next week -

[Boom Sounds]

I'll have a look at your post. I agree that a thread with model, year, VIN and parts that fit as stock replacements would be useful. My strategy has been to use the AC Delco VIN lookup to identify parts that fit, try and cross ref that with the Motorhome chassis guide and then order. I won't be returning them because they are destined for the UK. Hoping for the best!

Cheers
Nick


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[GCinSC2]

One of your challenges relates to how the electronic cataloging websites work and get their data.

Vehicle identification be it make model year engine driven or sometimes by VIN, the medium duty class is somewhat of an afterthought. Cars and pickups rule the day.

Also the suppliers to the big web names create the data, but it all has to fit within someone's definition of a valid vehicle.

I'm not in the cataloging dept. at work but I see and hear about their struggles daily.

[pago cruiser]

Very true.
On my last round of ball joints, I was using O'Reilly's, Auto Zone, and a local supply house to cross reference part numbers. Most were wrong.

Then I went to NAPA. Their cross reference was to a NAPA house brand, and the lowers fit fine - the other folks stuff (MOOG, Precision and ??, I forget now) stuff had either the press-in diameter wrong, or the taper on the stud was wrong. Scary thing about the taper was that it would fit: but you then had about 1/4" of space to makeup because it went into the spindle too far. Serious error, with potential deadly consequences.

Oddly enough, the uppers did NOT fit. Well, not quite true. They would have fit the stock upper a-arms. They did NOT fit the replacement MOOG a-arms I installed, that came with the wrong ball joints. Even MOOG did not have ball joints that fit the Land Yacht AND fit their own a-arms.

It gets worse: While I final found some uppers to fit, the rubber dust cover pressed fitting interfered with the mounting hole. I had to use the rubber cover that came on the O'Reilly's a-arm ball joint - which are not available separately. I even called the manufacturer for Precision Products, O'Reilly's house brand. So I had to purchase another a-arm just to get the stinking rubber boot...another $100.


I'm really glad this project is almost over...

[Boom Sounds]

Just to add. I think this process is pretty invaluable to anyone looking at parts for their coach:

Free VIN chevyy look up for chassis mnft date: http://chevroletforum.com/forum/vindecoder.php

Get your engine code and casting date from your 454 7.4L. You'll find reference here
http://www.chevyhardcore.com/news/re...sting-numbers/

Check out the AC Delco site, look up parts by VIN and cross check them with the chassis manuals

Hats off to Hatzie, what a guy!

Look at the year, P series or light truck manuals for your coach.

http://67-72chevytrucks.com/vboard/s...d.php?t=545416

http://67-72chevytrucks.com/vboard/s...d.php?t=690988

Cross check to the GMpartswiki
http://www.gmpartswiki.com which has useful stuff

P30 chassis alignment
http://www.offroadtoybox.com/RV/P-Ch...entProcess.pdf

P30 Service Manual
http://www.gmcmi.com/wp-content/uplo...sis-Manual.pdf

Thirdgen.org Chevytalk.org GMtruckforum

I think this stuff is invaluable for people who want to keep on top (or underneath) their coach.

Hope this helps
Nick

[Boom Sounds]

Credit to Hatzie on the Chevytrucksforum: Airstreamers love you!
Follow the link to download the relevant manuals

http://67-72chevytrucks.com/vboard/s...d.php?t=545416


PDF of Square Schematics & GM Training Manuals

/ icon and title message
** Added GM Delco radio manuals Oct 2015...

Over the years I have collected a bunch of GM service literature.
I own GM 1967-1980, & 1983-1991 GM Light Truck schematics as well as 1973-1991 GM Light Truck and 1984-1987 D-series CUCV Parts manuals. I also own many of the 67-91 Unit-Repair/Overhaul, Service, and Emissions Driveability Manuals.
Links to PDF Scans of service and STG manuals and a links to the Parts manuals. You'll need the FREE Adobe Acrobat reader to open these files. Get it directly from Adobe here {http://get.adobe.com/reader/}
If you're not interested in Adobe products there are several lightweight alternatives. wikipedia.org List_of_PDF_software
TechRepublic Review of five-lightweight-and-free-pdf-viewers/ an important fact they left out is... Foxit is Ad supported so factor that in.


Please Save these files on your local machine. Do not open in your web browser. The Mediafire PDF reader is not compatible with the Searchable PDF document type. The OCR text is visible along with the page image in the same space.

If you're good at loosing files Google "Void Tools Everything" and download direct from the developer. I've used this file search tool for years. It will find any misplaced file...

It looks like Mediafire has begun compressing PDF files as .gz GZIP archives. You can un-compress it with a universal file archive tool.
I use 7-ZIP because it opens darn near all archive formats, it's lightweight & fast, it's free, and so far it comes with no spyware or adware. http://www.7-zip.org.

Last and Not Least... These scans make a nice electronically searchable reference. But. I highly recommend buying used or even new paper copies. There's nothing like holding the book in your hands...

1973-1991 GM Light Truck Service, "Unit Repair" or Overhaul, and Wiring Manuals.

Notes;
-The earlier service manuals are interesting. They're geared toward troubleshooting rather than changing parts. They have a lot of basic procedure and theory of operation information you don't normally find in aftermarket and modern OEM service manuals.
-The Unit Repair and Overhaul manuals have in-depth GM re-build information on Axles, AC compressors, Hydro-Boost, Engines, Transmissions, and Transfer Cases.
-68-86 GM wiring manuals are 11.5"x36" fold-out pages. My scanner has a max page length of 34". These manuals require that I scan from each end, save as 0 compression TIFF, and stitch where the diagrams aren't real busy in GIMP 2.8 64bit.
-75 & 76 Light Duty Service & Overhaul Manual Supplement are supplements to 1974 Light Duty Service and Overhaul Manuals
-74, 75, 76 Medium & Heavy Duty service manuals are supplements to 1973 Medium & Heavy Duty Manuals.
-78 & 79 Medium & Heavy Duty service manuals are supplements to 1977 Medium & Heavy Duty Manuals.
-87-91 GM wiring manuals are A3 pages. I scanned these from cover to cover.
-87 wiring diagrams have an odd layout.
-81 & 82 8.5x11 GM wiring diagrams can be found in the back of the service manuals but these are a bit harder to follow as they don't carry the circuit from end to end on one page like the 11x36 pages.

• 1973
• ST333-73 1973 Chevrolet Passenger Car and Light Truck Overhaul Manual
• ST330-73 1973 Chevrolet Light Truck Service Manual
• 1973 GM CK Light truck Wiring Manual
• ST-331-73 1973 Chevrolet 40-60 Medium Duty Truck Service Manual
• ST-332-73 1973 Chevrolet 70-90 Heavy Duty Truck Service Manual
• .
• 1974
• ST333-74 1974 Chevrolet Passenger Car and Light Truck Overhaul Manual
• ST330-74 1974 Chevrolet Light Truck Service Manual
• 1974 GM CK Light truck Wiring Manual
• ST-331-74 1974 Chevrolet 40-60 Medium Duty Truck Service Manual Supplement
• ST-332-74 1974 Chevrolet 70-90 Heavy Duty Truck Service Manual Supplement
• .
• 1975
• ST330-75 1975 Chevrolet Light Truck Service and Overhaul Manual Supplement
• 1975 GM CK Light truck Wiring Manual
• ST-331-75 1975-76 Chevrolet 40-90 Medium & Heavy Duty Truck Service Manual Supplement
• .
• 1976
• ST330-76 1976 Chevrolet Light Truck Service and Overhaul Manual Supplement
• 1976 GM CK Light truck Wiring Manual
• ST-331-75 1975-76 Chevrolet 40-60 Medium & Heavy Duty Truck Service Manual Supplement
• .
• 1977
• ST330-77 1977 Chevrolet Light Truck Service Manual
• ST333-77 1977 Chevrolet Passenger Car and Light Truck Unit Repair Manual
• 1977 GM CK Light truck Wiring Manual
• ST-331-77 1977 Chevrolet 40-60 Medium Duty Truck Service Manual
• ST-332-77 1977 Chevrolet 70-90 Heavy Duty Truck Service Manual
• .
• 1978
• ST330-78 1978 Chevrolet Light Truck Service Manual
• ST333-78 1978 Chevrolet Passenger Car and Light Truck Unit Repair Manual
• 1978 GM CK Light truck Wiring Manual
• ST-331-78 1978 Chevrolet 40-90 Medium & Heavy Duty Truck Service Manual Supplement
• .
• 1979
• ST330-79 1979 Chevrolet Light Truck Service Manual
• ST333-79 1979 Chevrolet Passenger Car and Light Truck Unit Repair Manual
• 1979 GM CK Light truck Wiring Manual
• ST-331-79 1979 Chevrolet 40-90 Medium & Heavy Duty Truck Service Manual Supplement
• .
• 1980
• ST330-80 1980 Chevrolet Light Truck Service Manual
• ST333-80 1980 Chevrolet Passenger Car and Light Truck Unit Repair Manual
• 1980 GM CK Light truck Wiring Manual
• ST-331-80 1980 Chevrolet 40-60 Medium Duty Truck Service Manual
• ST-332-80 1980 Chevrolet 70-90 Heavy Duty Truck Service Manual
• .
• 1981
• ST_330_81_1981_Chevrolet_Light_Truck_Service_Manua l
• ST_333_81_1981_Chevrolet_Passenger_Car_and_Light_T ruck_Unit_Repair_Manual
• 1981 GM CK Light truck Wiring Manual Will scan and post if I can purchase or borrow one for scanning. 8.5x11 schematics are in the back of the service manual.
• ST_356_81A_1981_Advance_Information_Shop_Manual_Su pplement
• .
• 1982
• X8232_1982_GMC_Light_Duty_Truck_Service_Manual
• 1982_GM_CK_LIGHT_TRUCK_Wiring_Manual_Pgs_1B-1G*** NEW 3-6-2016 ***
• .
• 1983
• ST_330_83_1983_Chevrolet_Light_Truck_Service_Manua l
• ST-386-83 1983 Truck Wiring Covering CK P G-Van 10-30 & ST GM Light Duty Trucks
• .
• 1984-1987 CUCV
• US Army Technical Manuals TMs jatonka CUCV-TM download page
• .
• 1984
• X8432_1984_GMC_Light_Duty_Trucks_Service_Manual
• X8430_1984 GM CK 10-30 Light Truck Wiring Manual
• .
• 1985
• 1985 GM CK Light Truck Wiring Manual
• ST 382-85 1985 GM CK Light Truck Service Manual
• ST 382B-85 1985 GM CK Light Truck Service Manual Correction and Revision Pages
• .
• 1986
• X8632_1986_GMC_CK_G_P_Light_Duty_Truck_Service_Man ual
• X8637_1986_GMC_Light_Duty_Truck_Unit_Repair_Manual
• 1986 GM CK Light Truck Wiring Manual
• .
• 1987
• ST_330_87_1987_Chevrolet_Light_Truck_Service_Manua l
• ST_333-87 1987 Chevrolet Light Duty Truck Unit Repair Manual
• X8736_1987_GMC_Light_Duty_Truck_Fuel_and_Emissions _Including_Driveability
• 1987 GM RV Light Truck Wiring Manual
• .
• 1988
• X8832_1988_GMC_RVGP_Light_Duty_Truck_Service_Manua l
• ST333-88 1988 Chevrolet Light Duty Truck Unit Repair Manual
• X8836_1988_GMC_Light_Duty_Truck_Fuel_and_Emissions _Including_Driveability
• 1988 GM RV ST CK P G M Light Truck Wiring Manual
• .
• 1989
• X8932_1989_GMC_RVGP_Light_Duty_Truck_Service_Manua l
• X8937_1989_GMC_Light_Duty_Truck_Unit_Repair_Manual
• X8936_1989_GMC_Light_Duty_Truck_Fuel_and_Emissions _Including_Driveability
• 1989 GM RV & P Light Truck Wiring Manual
• .
• 1990
• X9032_1990_GMC_RVGP_Light_Duty_Truck_Service_Manua l
• ST50290SB_1990_Service_Bulletins_Supplement
• X9037_1990_GMC_Light_Duty_Truck_Unit_Repair_Manual
• 1990 GM RV & P Light Truck Wiring Manual
• .
• 1991
• X9132_1991_GMC_RVGP_Light_Duty_Truck_Service_Manua l
• ST333-91 1991 Chevrolet Light Duty Truck Unit Repair Manual
• X9136 1991 GMC_Light_Duty_Truck_Fuel_and_Emissions_Including_ Driveability
• X9130 1991 GM RV & P Light Truck Wiring Manual
• .
• 1995 GM Transmission Transfer Case Overhaul Manual for NV3500, NV4500, 4L60E, 3L80E, 4L80E, NP241, & NP231
• 1998 GM Manual Transmission and Transfer Case Overhaul Manual for NV3500, NV4500, NP246, NP241, & NP231
• NP233 Transfer Case Overhaul Manual

GM STG (Service Training Group) Textbooks and References

AC
• 11004.00-2 GM STG Fundamentals of Air Conditioning

Axles & Steering
• 1973-1980 GM Dana 44 Front Axle
• 1967-1978 GM Dana Axle Bill of Material Numbers. Dana Publication X510-8.pdf
• 1978-1998.5 GM Dana Axle Bill of Material Numbers. Dana Publication X510-9.pdf
• 1980-1983 GM Corp (10 Bolt) Front Axle
• Quick Req Parts & Illustration 1973-1983_Front_Axle_Hub_Gears_Front_Driveshaft_Steerin g_Linkage
• GMC_1500_2500_3500_Power_Steering_Service_Training _Booklet
• Driveline vibration diagnosis thread on this board

Brakes
• 15000.01-1 GM STG Base Brake Systems
• 15001.00-2 GM STG Drum Brakes
• 15004.50-2 GM STG Introduction to ABS.pdf
• 15005.11-C GM STG Light Truck Kelsey Hayes ABS Brake Bleeding Procedure Quick Reference Card

Cruise Control Systems
• GM STG 1968-1982_Cruisemaster_Cruise_Control
• GM STG 1984 GM Cruise III Training and Service
• GM STG 1992-1998_CK_Electro_Motor_Cruise_Control Used on the T400 chassis gas and DB2 diesel trucks. This is simple and self contained so it can be adapted to earlier vehicles.

Diesel
• ST37182_Chevrolet_Diesel_Fuel_Systems_Manual
• 1978-1980 GM STG Oldsmobile 350N Diesel Engine
• 1981-1985 GM STG Oldsmobile 5.7L 350DX Diesel Engine
• 16015.03-1A GM STG 1981 Advanced Diesel Stanadyne-Roosa-Master Injection Pump & Fuel System Troubleshooting (DB2 Series Injection Pump)
• 16015.05-1C 1987 GM STG The 6.2L Diesel Engine
• TSB_89-329-6 1982-1989 6.2L_Hard Starting Cold HPCA (Housing Pressure Cold Advance) Replacement ** NEW Mar 23 2014 ** Not my scan...
• 16015.12-1 1991 & 1992 GM STG 6.5 Litre V8 Turbo Diesel Engine ( DB2 Mechanical Fuel Injection System )
• 16015.15-2 1994-1995 GM STG 6.5 Litre V8 Turbo Diesel Engine ( DS4 OBD I Electronic Fuel Injection System )
• GMT9495DSLUD 1994-95 GM P Series & 1994 GM CK Series Diesel Electrical Diagnostic Supplement
• 1996-2000 GM STG 6.5 Litre V8 Turbo Diesel Engine ( DS4 OBD II Electronic Fuel Injection Systems )

Electrical
• 1901-1 GM STG Delco Truck Charging Systems
• 16201.00-3 GM STG Charging and Starting
• 1007-2 Windshield Wiper Systems
• GM_STG_18001_02_VA_Wiring_Assembly_Repairs*** NEW OCT 14, 2015 ***
• Packard Electric Repairing Wiring Harnesses

Fuel Systems
• 16009.10-1A GM STG Fuel Injection
• 16009.06-1A GM STG Port Fuel Injection
• 16009.07-1A GM STG Advanced Port Fuel Injection
• 16009.BB-2 GM STG 1992 Port Fuel Injection SYSTEM DIAGNOSIS 1992 GM V8 RPO LB9, LT1, LT5, L98 and 1992 GM L-4 RPO LE4, LN2, LD2, LG0, & L40

Transmission / Transfer Case
• 14003.01-3 GM STG NP208 Transfer Case
• 1973-1984_NP205_Quick_REQ_Parts_Sheets
• 17001.11-1A GM STG Turbo Hydramatic 700R4 Automatic Transmission
• 17021.24 GM STG Hydramatic 4L80-E Transmission Electrical Supplement


1973-1991 GM Light Truck Parts and Illustration Catalogs
Hosted at: http://gmpartswiki.com
It's hosted with free access by Ian Harding. My scans of the 1973-1991 CK RV parts catalogs are searchable PDF files weighing in at 80-100 meg for each catalog set.
The site is organized by printing date not coverage dates. This list should allow you to find which CK RV catalog you need to search.
• Catalog 51- 1973-1978 Feb, 1983 Printing GM CK G P Light Truck Parts
• Catalog 51A 1973-1978 Feb, 1983 Printing GM CK G P Light Truck Illustrations
• Catalog 52A 1979-1984 Sep, 1984 Printing GM CK Light Truck Parts & Illustrations
• Catalog 52D 1984-1987 Oct, 1986 Printing GM D1-D3 1984-1987 CUCV Military Light Truck Parts & Illustrations
• Catalog 52R 1985-1988 Jan, 1988 Printing GM CK 85-86 RV 87-88 Light Truck Parts & Illustrations *** Ian Harding scanned this catalog ***
• Catalog 52R 1985-1991 Sep, 1990 Printing GM CK 85-86 RV 87-91 Light Truck Parts & Illustrations
•
• Medium Trucks...
• Catalog 78TM 1973-1978 Sep, 1982 Printing GM 5000 & 6000 Medium Truck Parts
• Catalog 82TM-GR-F 1973-1982 Jul, 1983 Printing GM Steel Conventional & Tilt AND School Bus Parts & Illustrations

Light Trucks Parts Books on My Server...

Note: you need both Parts and Illustration books to have a complete manual.

1973-1978 C/K G P
• 51_1973_1978_GM_Light_Truck_Parts_1983_Printing
• 51A_1973_1978_GM_Light_Truck_Illustration_1983_Pri nting
1978-1984 C/K G P
• 52A_1979_1984_PARTS_CATALOG_1984_PRINTING
• 52A_1979_1984_ILLUSTRATION_CATALOG_1984_PRINTING

CUCV
• 52D_1984_87_CUCV_Parts_and_Illustration_Catalog

1985-86 C/K 1987-91 R/V
• 52R_1985_86_CK_1987_91_RV_LIGHT_TRUCK_PART_NUMBER_ CATALOG
• 52R_1985_86_CK_1987_91_RV_LIGHT_TRUCK_PART_ILLUSTR ATION_CATALOG

Radios ********** NEW May 22, 2015
Before you download these manuals. You will need more than a passing acquaintance with electronics repair and a bench of electronics tools. This does not mean a 40W Radio shack soldering iron and a precision screwdriver set.
You will likely need at a minimum a good Benchtop DC power supply capable of at least 24v and 3A, VTVOM, Analog Volt Ohm Meter, Digital Volt Ohm Meter, Precision Temp Controlled Solder Station, and various hand tools... You may need a good Oscilloscope, frequency counter, and Audio signal generator.
If you think I'm trying to scare you... I am.
If you don't have all or most of the above tooling, lots of patience, and a fair amount of experience with electronics and your tools (you didn't just buy em)... farm it out to one of the many competent radio guys. You'll be many dollars, a bunch of frustration, and lots of time ahead.
I have been searching for these as a complete un-butchered GM Radio manuals for a very long time. Be aware that most "complete radio manuals" on Fleabay are not anything of the sort. The Manual Mafia separate these into the internal chapters, label the chapters as a complete manual for whatever radio is on the first page, and sell them one chapter at a time for $30-$50 a chapter. They are cutting a rare reference book into chapters and spreading them to the four winds.



Service Manuals & Info
• 1975: 6D-1975-2_Radio_Service_Handbook.pdf
• 1978: 6D-1978-1_Radio_Service_Handbook.pdf ** NEW October 9, 2015 **
• OEM Radio Wiring Connectors & Terminals: http://67-72chevytrucks.com/vboard/s...9&postcount=13

Useful Docs and Spreadsheets
What follows is an Excel 97 spreadsheet I put together several years ago to calculate the Speedo gears and engine RPM at various highway speeds. I was doing a "What-If" on transmissions, tires, and axle gear-sets and wanted to get transmission/transfer-case speedo gears as close to correct as possible. My 76 reads 1-2mph higher than actual speed. If my speedo reads 35 the local police dept's "Your speed is this" sign will read 33 or 34.

For Speedo gears you only need to edit the Tire Size & Axle ratio. The speedo gear table will automagically calculate the ideal Driven and Drive gears.
You then get to find which ones you can actually buy. You can edit the ratio adapter section to get you closer... If the gears you can actually buy are not close enough.

For the RPM tables you'll need to edit the transmission and Transfer case gear ratios as well. There are tables of ratios found in common trannys and transfer cases in the RH pane.
• RPM_Gear_Axle_Transmission_TransferCase.zip archive with Excel 97 XLS format and Libre Office / Open Office ODS format.
• Screen Grab of RPM_Table_Spreadsheet.ods open in Libre Office Calc
The Free Apache Open Office Suite https://www.openoffice.org/ and Free Libre Office Suite http://www.libreoffice.org/ 4.x and newer Office Suites "Calc" Spreadsheet applet will open and edit spreadsheets in Excel 97(XLS) & 2007 and newer (XLSX) formats. I lean toward Libre Office because the dev cycle for bugfixes and new features is shorter. Google Docs should open it on the web as well.
.XLS files sometimes have visual formatting issues in Libre Office and .ODS files have formatting issues in some versions of Excel. They will both open in either office package but I included both for more appealing visual layout in the office package of your chioce.

There are no Macros or VB Scripts. It's just a spreadsheet with some fairly complex formulas and color formatting.
MAC OSX and Windows Operating Systems since Windows XP have been able to open ZIP files without extra software if the functionality is not disabled by system policies. If you want a Free Open Source Archive tool get the 7-Zip tool http://www.7-zip.org/ If you don't like using 7Zip from the command line in Linux there's a GUI called PeaZip
• List of SAE rated hoses to use for Fuel, Oil Cooler, Transmission Cooler, and Vacuum Booster. http://67-72chevytrucks.com/vboard/s...d.php?t=696742
• List of Hose Clamp types.http://67-72chevytrucks.com/vboard/s....php?p=7471241
Have a good one.
/ message sig
__________________
1976 Chevy K20, 6.5L, NV4500/NP208
2012 Polaris Sportsman 500HO
1986 M1008 CUCV
2000 GMC C2500, TD6.5L, NV4500
2005.5 VW Jetta TDI
2009 Impala SS

RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...
• 1973-1991 GM Light Truck Service, Unit/Overhaul, Wiring Manuals, Parts Books and Some 1968-1999 GM Service Training textbooks in PDF
• 1988-1998 GMT400 CK service manuals folder
• 1988-1993 GMT400 CK parts books.
• 1967-1972 GM Light, Medium, & Heavy Truck Service Manuals in PDF
Please include at least the year and model in your threads. It'll be easier to answer your questions.
And please let us know if and how your repairs were successful.

[Boom Sounds]

For sakes of completeness, you can also download the RPO codes from the CompNine site by using your chassis VIN.

RPO codes in more detail can be found here:http://www.someotherplace.com/info/RPO.pdf

Mine looks like this:
RPO Description Matches
VXT LABEL INCOMPLETE VEHICLE INCOMPLETE VEH LABEL(VXT) 9,929
V73 VEHICLE STATEMENT - US/CANADA US/CANADA VEHICLE STATEMENT(V73) 9,915
X88 CONVERSION CHEVROLET CHEVROLET(X88) 9,904
YC4 AXLE,FRONT(5000 LB) 5000 POUND F/AXL(YC4) 949
YF5 CALIFORNIA EMISSION CERTIFICATION CALIFORNIA EMIS CERTIFICATION(YF5) 6,027
ZV1 STATEMENT OF ORIGIN - MANUFACTURE 9,862
ZW9 BASE BODY OR CHASSIS BASE BODY/CHAS(ZW9) 9,929
Z5M SALES PROCESSING OPT - MOTOR HOME SCHEDULING 9,862
01L EXTERIOR COLOR,SECONDARY SPECIAL (01L) 9,876
01U EXTERIOR COLOR,PRIMARY,SPECIAL OVERRIDE (01U) 9,918
2WG Unknown 1,201
3WG TIRE REAR 7.50R-16D HWY TBLS BW, MICHELIN TIRE(3WG) 1,201
4WG Unknown 6
40P WHEEL COLOR,WHITE (40P) 9,922
CD4 WIPER SYSTEM,WINDSHIELD,PULSE PULSE WPR(CD4) 4,575
C7N GVW RATING(12300 LBS) 12300 GVWR(C7N) 949
DET PLANT CODE DETROIT, MI, BOC DETROIT PLANT CODE(DET) 9,929
ENV A/C PROVISIONS ENGINE DRESS, COMPRESSOR AND CONDENSER A/C PROVISIONS(ENV) 9,493
F66 SUSPENSION,HEAVY DUTY FRONT AIR HVY DUTY FRT A/SUSP(F66) 949
GQ1 AXLE,REAR,STANDARD RATIO(MERCHANDISING OPTION) STANDARD RATIO R/AXL(GQ1) 9,627
GT5 AXLE,REAR,4.10 RATIO 4.10R(GT5) 1,709
G50 SPRING,HEAVY DUTY REAR HVY DUTY RR SPR(G50) 1,802
JB8 BRAKE SYSTEM,HYDRAULIC POWER DISC,DRUM(GAS & DIESEL ENGINE)(ROTOR=12.5"X1.54",REAR BRAKE SHOE=13"X3.5") HYD PWR DISC/DRUM BRK(JB8) 1,814
K34 CRUISE CONTROL,AUTOMATIC,ELECTRONIC CRCONT(K34) 4,575
K68 GENERATOR,105 AMPERE 105 AMP(K68) 9,843
L19 ENGINE,7.4L(7.4N),V8(E.F.I.) 7.4N(L19) 9,732
MT1 TRANSMISSION,AUTO,4-SPD,THM-R2(4L80-E) 4-SPD A/TRANS(MT1) 9,929
MX0 TRANSMISSION,AUTOMATIC,OVERDRIVE(MERCHANDISING OPTION)(MD8) A/TRANS PROVISIONS(MX0) 9,929
NA9 EMISSION CONTROL,EVAPORATIVE EVAPORATIVE EMIS(NA9) 9,732
NB2 EMISSION SYSTEM,CALIFORNIA REQUIREMENTS CALIFORNIA EMIS(NB2) 6,026
R6J CONTROL - SALES ITEM NO. 10 9,862
R7Y CONTROL - SALES ITEM NO. 49 6,562
R8T CONTROL - SALES ITEM NO. 69 3,052
SLM SALES PROCESSING - STOCK ORDERS

[Boom Sounds]

The Dorman site is also very good. It can distinguish more clearly between the coaches with the 16" and 19.5" wheels and the different brake set ups e.g. JB8 and JF9