Reply
 
Thread Tools Search this Thread Display Modes
 
Old 09-22-2010, 07:15 PM   #15
Rivet Master
 
SteveH's Avatar
 
2005 39' Land Yacht 390 XL 396
Common Sense , Texas
Join Date: Sep 2007
Posts: 5,311
As far as I know, they both had the same rear end housing....the GM 8 bolt.
__________________

__________________
Regards,
Steve
SteveH is offline   Reply With Quote
Old 09-04-2011, 12:26 PM   #16
Vintage Kin
 
slowmover's Avatar
 
Fort Worth , Texas
Join Date: Nov 2006
Posts: 7,603
Images: 1
Is this the TV for the new 25' Eddie Bauer (GVWR 7.3k)? I see from that other thread that the inaugural trip is but a few weeks away.

You may have already covered or be intimately familiar with the following. If not, then once done you'll appreciate the very significant difference made as to hitch rigging.

Truck specs (GAWR, GVWR)?

Hitch brand and model?

Certified scale weight on empty & loaded TV already in place?

TW of empty trailer (full fresh water & propane)?

Dealers are sloppy on this, in general.

A bit of preliminary work and then going across a CAT Scale will dial in the combination as to the WDH.

There's a difference between fairly-good and finger-tip. A big one.
__________________

__________________
1990 35' Silver Streak Sterling; 9k GVWR.
2004 DODGE Cummins 305/555; 6-manual; 9k GVWR.
Hensley Arrow. 9-cpm solo, 15-cpm towing
Sold: Silver Streak Model 3411
slowmover is offline   Reply With Quote
Old 09-04-2011, 02:25 PM   #17
Rivet Master
 
Alumaholic's Avatar

 
1966 24' Tradewind
Albuquerque , New Mexico
Join Date: Nov 2005
Posts: 1,751
Images: 33
Just to Clarify...

... you are a victim of the EPA and GM's attempt to increase their fleet MPG averages.

You have a 5.3 L with a 3.08 RA. Your towing capacity is 5100, not 7400.

I made the same, sad discovery when I purchased my 2009 Suburban.

I sure wish Congress would quit trying to design cars. They have ruined the venerable Suburban.
__________________
Ken L
1966 Tradewind 24
2007Chevy Silverado 2500 HD Duramax/Allison
Four Corners Unit WBCCI #8654
Alumaholic is offline   Reply With Quote
Old 09-04-2011, 07:15 PM   #18
4 Rivet Member
 
phbarnhart's Avatar
 
2012 25' FB Eddie Bauer
Eugene , Oregon
Join Date: Sep 2010
Posts: 411
Images: 14
Quote:
Originally Posted by Alumaholic View Post
... you are a victim of the EPA and GM's attempt to increase their fleet MPG averages.

You have a 5.3 L with a 3.08 RA. Your towing capacity is 5100, not 7400.

I made the same, sad discovery when I purchased my 2009 Suburban.

I sure wish Congress would quit trying to design cars. They have ruined the venerable Suburban.
Yeah, I may very well be upgrading to 3.73 gearing once I've taken it for a few trips. The owners manual is very interesting on the subject of towing capacities for the various equipment options. The. 3.08 is rated at 5000 and the 3.42 w/ HD cooling package is rated at 7900. The really interesting thing is that the 3.42 w/o the cooling package is only rated at 5400 (I didn't even know that you could get it that way, but it's in the manual anyway).

I am NOT saying that the information above supports the inference that a 3.08 w/transmission cooler will be able to comfortably tow 7400 but it does seem that way. In any event, I've towed a SOB that was 6000 dry and the transmission fluid never got over 200 degrees.

I imagine that I, like many others on here, will end up making some TV adjustments in order to support the AS habit.
__________________
phbarnhart is offline   Reply With Quote
Old 09-04-2011, 07:51 PM   #19
4 Rivet Member
 
phbarnhart's Avatar
 
2012 25' FB Eddie Bauer
Eugene , Oregon
Join Date: Sep 2010
Posts: 411
Images: 14
Wow, now that's what I call cross referencing! These threads are in totally different forums!

I'll try to answer as best I can.

Quote:
Originally Posted by REDNAX View Post
Is this the TV for the new 25' Eddie Bauer (GVWR 7.3k)? I see from that other thread that the inaugural trip is but a few weeks away.

You may have already covered or be intimately familiar with the following. If not, then once done you'll appreciate the very significant difference made as to hitch rigging.

Truck specs (GAWR, GVWR)?
Rear: 4200lbs
Front: 3600lbs
GVRW: 7400lbs


Quote:
Hitch brand and model?
Equi-l-izer (for now) because the dealer is throwing it in.

Quote:
Certified scale weight on empty & loaded TV already in place?
No

Quote:
TW of empty trailer (full fresh water & propane)?
6055... that's with LP and a full fresh tank

Quote:
Dealers are sloppy on this, in general.

A bit of preliminary work and then going across a CAT Scale will dial in the combination as to the WDH.

There's a difference between fairly-good and finger-tip. A big one.
There is a CAT scale near my house and I plan on figuring out when a good time to go would be so that I can go get it all dialed in.
__________________
phbarnhart is offline   Reply With Quote
Old 09-04-2011, 07:53 PM   #20
4 Rivet Member
 
phbarnhart's Avatar
 
2012 25' FB Eddie Bauer
Eugene , Oregon
Join Date: Sep 2010
Posts: 411
Images: 14
Quote:
Originally Posted by Dave Park View Post
I think that's when I'd be scouring breaker yards for an 07 with the ratio you want that had front end damage, and buy the complete axle.

Luckily, my FX4 has the perfect ratio and HD tow package. I made it a buying requirement or I knew I'd be going through this
Next time. Honestly, we've only had the Suburban for 18 months but when we bought it we had no idea that we would be buying an Airstream a year and a half later. We just rented SOB trailers several times last, and then this, summer and kind of fell in love with the aluminum and.... well you know how it goes.
__________________
phbarnhart is offline   Reply With Quote
Old 09-04-2011, 07:54 PM   #21
4 Rivet Member
 
phbarnhart's Avatar
 
2012 25' FB Eddie Bauer
Eugene , Oregon
Join Date: Sep 2010
Posts: 411
Images: 14
Quote:
Originally Posted by SteveH View Post
As far as I know, they both had the same rear end housing....the GM 8 bolt.
Does that make it easier to swap the internals for a 3.42 or 3.73 gearing?
__________________
phbarnhart is offline   Reply With Quote
Old 09-04-2011, 08:14 PM   #22
Rivet Master
 
SteveH's Avatar
 
2005 39' Land Yacht 390 XL 396
Common Sense , Texas
Join Date: Sep 2007
Posts: 5,311
Quote:
Originally Posted by phbarnhart View Post
Does that make it easier to swap the internals for a 3.42 or 3.73 gearing?
Sorry, I made an error, it is the GM 10 bolt (Ford had a small 8" rearend), but yes, with factory gears you can go down to 3.73, the dealer will install it, do all the computer programming, and warranty it, but it won't be cheap. The last time I priced a gear change at a dealer, they were quoting $2500.

Or, you can go to an independent shop, pay less, and take your chances.
__________________
Regards,
Steve
SteveH is offline   Reply With Quote
Old 09-04-2011, 08:22 PM   #23
Rivet Master
 
Alumaholic's Avatar

 
1966 24' Tradewind
Albuquerque , New Mexico
Join Date: Nov 2005
Posts: 1,751
Images: 33
Swapping 3.08 to 3.73 Not Worth the Money

A 3.73 behind a 5.3L still isn't that great.
You may be trying to turn an apple into an orange, something I've tried many times (aftermarket AC, aftermarket cruise control, etc.)

The only modification that makes a 3.73 a good choice for towing is a 6.6 Duramax in front of it (Or an 8.1L gasoline)
__________________
Ken L
1966 Tradewind 24
2007Chevy Silverado 2500 HD Duramax/Allison
Four Corners Unit WBCCI #8654
Alumaholic is offline   Reply With Quote
Old 09-04-2011, 10:15 PM   #24
3 Rivet Member
 
2008 27' Safari FB SE
Mesquite , Texas
Join Date: May 2008
Posts: 115
Like any other half ton, the first thing you are probably going to run into is the max payload on the 'burb. I used to tow an '08 27FB with a Tahoe. I could easily stay under the axle weights, the GCVW and the rated towing capacity. Staying under max payload was the issue. I could do it, but I really had to pay close attention to what we put in the trailer and where we put it. We had to be especially careful with what we put in the Tahoe. Anything more than people would usually push us right to the limit.

If you have the TV and the trailer already, go to the scale and see what the weights look like. Dial it in and optimize the weight distribution. Once that is done, make absolutely sure that you know where you are with respect to all stated capacities on the TV and trailer.

Wayne
__________________
wayner61 is offline   Reply With Quote
Old 09-04-2011, 11:29 PM   #25
4 Rivet Member
 
phbarnhart's Avatar
 
2012 25' FB Eddie Bauer
Eugene , Oregon
Join Date: Sep 2010
Posts: 411
Images: 14
Quote:
Originally Posted by SteveH View Post
Sorry, I made an error, it is the GM 10 bolt (Ford had a small 8" rearend), but yes, with factory gears you can go down to 3.73, the dealer will install it, do all the computer programming, and warranty it, but it won't be cheap. The last time I priced a gear change at a dealer, they were quoting $2500.

Or, you can go to an independent shop, pay less, and take your chances.
Good to know what I might be looking at for the swap. I'm thinking that maintaining the rest of my 5 year power train warranty might make it worth it. Also, we have a pretty decent Chevy dealer in town that I don't mind supporting... well, to a point.
__________________
phbarnhart is offline   Reply With Quote
Old 09-04-2011, 11:31 PM   #26
4 Rivet Member
 
phbarnhart's Avatar
 
2012 25' FB Eddie Bauer
Eugene , Oregon
Join Date: Sep 2010
Posts: 411
Images: 14
Quote:
Originally Posted by wayner61 View Post
Like any other half ton, the first thing you are probably going to run into is the max payload on the 'burb. I used to tow an '08 27FB with a Tahoe. I could easily stay under the axle weights, the GCVW and the rated towing capacity. Staying under max payload was the issue. I could do it, but I really had to pay close attention to what we put in the trailer and where we put it. We had to be especially careful with what we put in the Tahoe. Anything more than people would usually push us right to the limit.

If you have the TV and the trailer already, go to the scale and see what the weights look like. Dial it in and optimize the weight distribution. Once that is done, make absolutely sure that you know where you are with respect to all stated capacities on the TV and trailer.

Wayne
Good advice and kind of what I thought that I was going to be doing anyway. For the most part, our dogs occupy the rear cargo area of the Suburban on long trips with a trailer and the stuff goes in the thing getting dragged behind us. I guess what you're saying is that I probably shouldn't get that canoe to go on the roof of the sub'.
__________________
phbarnhart is offline   Reply With Quote
Old 09-05-2011, 03:31 PM   #27
Vintage Kin
 
slowmover's Avatar
 
Fort Worth , Texas
Join Date: Nov 2006
Posts: 7,603
Images: 1
Prior to taking the trailer with you to a CAT Scale some preliminary work can be done that will help in the initial scale work:

Intro to A/S WDH

Deciphering Scale Numbers Formula

1] Need weight of TV with only driver & full fuel, each axle; plus published shipping weight. The latter gives the Towing Guide the context.

If the truck is "shipped" at 5,890-lbs, but a scale weight of 6,420 is seen with the driver/fuel/options, then the tow guide numbers are modified to reflect this; that is, the total trailer weight declines (dependent on TW to a degree).


2] Need tongue weight of trailer, preferably loaded and empty.
(How was the 6,055-lb of trailer arrived at? Axles?. The TW can be measured -- with full fresh water and propane -- as in this link.)


Tongue weight is expected to be 10-15% of trailer combined axle weight; thus, on a 7,300-lb trailer where a long-term trip load factor of .92 is seen, the trailer [now at 6,716 -- with a 12.5% TW of 840-lbs] the load one can carry in the Suburban is limited by the final adjustment number of the TW [around 75%, or, 630-lbs].


3] 2011 Chev Tow Guide sez 8,500-lbs with 3.42 and 5.3. (You don't need the deeper gears as much as may be thought above. A six-speed tranny is a long way from the old three/four speeds where extra dig was required, although you may in the future choose to. Instead it may be that LT tires are a better choice if not so equipped, where a shorter, stiffer sidewall with an increase in load capacity [up to that of the wheel] may serve as a shorter rear gear.)


I did not see in an initial search the Tow Guide for Suburbans where details are given on the how-to's of WDH set-up and adjustment. If that can be found, and the above ship weight & empty weight of the TV is measured, and any numbers off the trailer are derived, this will speed up the initial adjustments (for which you will be thankful, IMO).

This link shows Equalizer instructions, specifically on A/S. The guide uses wheelwell height measurements which are "gross", versus weight scale which are "fine". As the EQ allows for some FA weight to be decreased, but the generic formula calls for all weight returned to the FA when hitched, then there is some room to play with adjustments. Thus the desire to have all other weights previous to scale work.

Sad that an A/S dealer stocks Equalizer. It is second place on the second tier list of trailer hitches; or, about the fourth most desirable (above the unacceptable fifth choice which is third tier). It's apparent simplicity is it's virtue.


.
__________________
1990 35' Silver Streak Sterling; 9k GVWR.
2004 DODGE Cummins 305/555; 6-manual; 9k GVWR.
Hensley Arrow. 9-cpm solo, 15-cpm towing
Sold: Silver Streak Model 3411
slowmover is offline   Reply With Quote
Old 09-05-2011, 07:31 PM   #28
4 Rivet Member
 
phbarnhart's Avatar
 
2012 25' FB Eddie Bauer
Eugene , Oregon
Join Date: Sep 2010
Posts: 411
Images: 14
So all of the weights that I have come up with are from literature (internet, owners manual, etc) so I know that I'm going to have to get busy with the scales.

Thanks for the links! This forum is a wonderful wealth of information and I'm sure that I'll be here often for answers.

This particular AS dealer sells lots of other brands as well so It's not shocking that they sell some cheap hitches. The bottom line is that they're basically giving me the Equalizer because I told them that I wouldn't buy the trailer without a distribution hitch that was really easy to use. There is a great hitch only place in town that will very likely be installing a Hensley or a ProPride eventually.

Heck, I may be upgrading to a 3/4 ton or the gearing on the 1/2 ton, right now I just want to get it set up correctly and get out there!!!!

EDITED: I have already swapped the tires for XL rated Nokians with a 117 load index.
__________________

__________________
phbarnhart is offline   Reply With Quote
Reply

Tags
1/2 ton


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
2010 Suburban 2500 or 2010 Toyota Sequoia 5.7 laynlow Tow Vehicles 37 03-15-2010 10:48 PM
Transmission cooler 2008 Suburban. adonh Tow Vehicles 39 09-02-2008 11:25 PM
Suburban 3/4 Ton vs. Expedition EL Roadtech Tow Vehicles 19 12-23-2007 07:04 AM
Suburban 05 3/4 ton 6L 4.1 axle chaimemet Tow Vehicles 9 04-21-2007 08:59 PM
2007 3/4 ton Suburban changes..... Silvertwinkie Tow Vehicles 38 05-16-2006 01:26 PM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 02:42 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.