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Old 12-06-2008, 10:47 AM   #29
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tow it and feel ok, but there's got to be a price for exceeding the capacity of the truck

rear axle/differential; especially axle bearings on a semi-floating axle.
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Old 12-06-2008, 11:34 AM   #30
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Odo is correct to the speedo check markers posted occasional along highway.
I am using the computer average, as my rig does't have a digital read out of current, just bar graph. Wish it had the realtime reading but I guess it doesn't have that instrument package.
Getting the tank filled up equally and fill up is not possible in Oregon, we are not properly trained, thus incapable of performing the the exacting art of selfserve fueling.
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Old 12-06-2008, 12:06 PM   #31
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Gene, Right you are. When I think of limits of GVWR I take all of those things which, comes down to payload.

The mattress is why I have a tongue wt of about 1100, and yes fully loaded with the trailer attached TV wt is about 7500, or about 300 over. GVWR is 7200.

While on the subject, if the tongue is a little high, should the tongue weight differ than when level or a little low?

Another subject, weighed axles the other day, 3300 ft and 3000 rr hitched up. I am just shy of level nose down, maybe 1" differance ft to rr. If I could get level would it take some weight off tongue?

Thanks
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Old 12-06-2008, 12:32 PM   #32
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Scotty, I believe, now that I know which model you have, your payload is 1,495 lbs. because you have the heavier crew max cab. Also to be subtracted from payload are any options added on, and Toyotas all come with a lot of options. For example, I think they all have running boards and that's got to add 75 lbs. I have a hard tonneau on mine and that's about 60 or 75 lbs. However, and you'll have to check the owner's manual (I could check mine, but I'm too lazy right now to walk outside) and see whether Toyota figures coolant and gas into the payload. I seem to remember something about one or both being accounted for; it was not too easy to find, but there's something somewhere defining it.

I think the Tundra could be easily upgraded to a 3/4 ton. The differential and drive shaft seem up to it, but the leaf springs do not. The 4 wheel disc brakes are massive. On the other hand it has passenger car tires, not light truck tires, and the wheels are 5 hole, not 6. I think the 5 holes equal six because the lugs are pretty big and thus I would think they equal smaller 6 lug systems, but it does make one wonder. I think Toyota may have designed the truck to easily put out a 3/4 ton model if the 1/2 ton did well. If they didn't have to make two different differentials, drive shafts and transmissions for 1/2 and 3/4 ton, they would probably save money in the long run. Other upgrades seem pretty easy to make. With truck sales cratered, they probably are holding back on a 3/4 ton unless Detroit goes under. In that case, I'm sure we'll see a 3/4 ton Tundra very quickly. If I'm right about the parts for that, it may be relatively easy to convert a 1/2 ton to a 3/4 ton. You can discount this entire paragraph as the delusional musings of a man avoiding going to work out.

Interesting how your odometer is correct and mine isn't. My past experience is Toyota odometers are very accurate. Maybe it's the difference between the '07 and '08, or maybe you have the Limited. I have the SR 5. I don't get a bar graph, but do get the current mileage in actual numbers which I don't like looking at unless I'm coasting downhill (besides it's a good way to drive off the road). I understanding changing the oil filter on the '08 is even more difficult than on the '07 (probably designed by a former Chrysler engineer).

I hope you can get trained on self service fueling so you can leave Oregon—it's just too far to Jersey to make it on one tank. Next time we're in Oregon we could run fueling seminars, though hands on training wouldn't be allowed.

Gene
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Old 12-06-2008, 02:37 PM   #33
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Hi Gene,
From 97 to 07 I lived in CO, Salida, Poncha Springs, and Steamboat. Been through Crawford a number of times while working the western slope, but it is a bit off the track, and that is good.
Fyi, Just came back from the scales with Tundra bed empty, .5 tank of gas, plus the A.R.E. canope. 3360 ft, 2700 rr, or 6060 gross. Just have to add me and the other stuff.
I have on order Timbren SES rear spring what evers, that will save my spring. Different tires are someting to consider.
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Old 12-06-2008, 03:23 PM   #34
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Scotty,

We probably went through Reedsport either earlier this year or another year, but I can't remember just where it is. Note that in my last 3 posts, my deteriorating memory may have been mentioned a lot. At least I can remember that.

I just looked at the Timbren website and that is an interesting thought. It appears not to be an air bag. Have you found out anything about how it affects handling? It says to "remove wheel assembly" to install it—I wonder what that means? What about wheel bearings?

Sounds like you either have a camper top or a tonneau and they would weigh about the same, perhaps the top would be more. We weighed ours with us in it (since we always are when we are towing), full tank of gas, but, of course, by now, memory issue, but I think it was similar to your number, but higher which would be expected with gas and 2 people. We have the running boards too for more weight.

Given the cheesy tires that came on the truck, I expect they will wear quickly and I'll go to Michelin LT, perhaps 10 ply. Our last Tundra ('02) also came with cheapo tires and they didn't last much more than 20,000 miles and I've got around 15,000 now on the '08, though these seem to be better than the '02's.

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Old 12-06-2008, 06:06 PM   #35
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Gene, nothing about removing wheels. Follow this link Pick Up Truck Suspension Enhancement Kits from Timbren Industries
Also have TRD Off Road Package. Could use tire different tires when these get tired. Michelin is alway a good choice and Toyo have done well.
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Old 12-06-2008, 07:15 PM   #36
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Scotty, now that I've read that part of Timbren's website, I see they mean "wheel and tire" when they say "wheel assembly". I was beginning to wonder if they meant removing the discs, rotors, etc. It looks like a simpler system than air bags. When you install it it'll be interesting to hear (or read) how it works.

Have you seen any objective reviews of this product indicating it really does increase payload? I don't understand this stuff very well. Rednax mentioned axle bearings. I guess he meant wheel bearings, but maybe not. That would seem relatively simple to replace—I say that not having repacked wheel bearings in about 25 years.

I didn't see your post 31 until now. It must have come in while I was writing #32. I have been playing with different air pressures in my tires. If I left them at the setting (33 rear, 30 front), the nose is too high though the trailer was close to level. After fooling with all sorts of combinations, I have been adding 4 lbs all around. The truck is more level this way and the trailer seems to be level. It's hard to determine level around here since nothing is level in Colorado. Even a mall parking lot is graded for drainage.

Your question: " if the tongue is a little high, should the tongue weight differ than when level or a little low?" I am an amateur at this. I would think the Hensley needs adjustment. I have an Equalizer and the dealer installed it so I didn't pay much attention. There is an adjustment on the Eq. that will affect levelness and since the washers affecting that are now loose (apparently it's normal for that to happen after a while), I have to learn how to do use the adjustment screw and whether I need to add washers. I have until next spring to figure it out and fool with it in that level place nearby I need to find (it may be my leach field). I imagine all hitches have some sort of adjustments.

There are many threads about this and a lot of the posts are beyond my understanding. When I finally get around to figuring out the system, I will be able to post equally opaque Equalizer adjustment instructions. For you there's the "HaHa" thread in which 2air expounds on the Hensley.

Gene
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Old 12-06-2008, 10:30 PM   #37
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We have a 08 tundra crew max with the tow package and 5.7 engine. We tow a 07 safari 25 SE. Its a nice ride and we average 11 mpg. I think everyone would agree our set up is good. But any bigger than that and the opinions will differ.
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Old 12-06-2008, 10:47 PM   #38
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Once you start to get to 25', you really start to get into the 3/4 ton range of vehicle. It is true that 1/2 tons can do the trick, but at 27', that is a heck of a lot of weight. I know the Caddy has some premium upgrades (engine, etc), but it does not have the truck tranny (4l80e), the hubs and most likely had smaller rear diff.

The Nissan offering is a good offering, however I would be reluctant to tow a 27 footer with it, particularly if your towing would be in the mountains.

It's a great truck and at some point Toyota will offer a 3/4 ton truck, but for now, it really is a 1/2 ton beast and has a good amount of frame flex making it a good vehicle for 23 feet or smaller.

Personally outside of towing a 27' trailer I think it's a fantastic truck in nearly category.
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Old 12-07-2008, 11:09 AM   #39
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Well, we have the 2008 Tundra 5.7 V8 SR5 trim Crew Cab and a 1978 Arogosy trailer that I thought was 30 feet, based on my wife's report (we inherited it from her side of the family), but as far as I can tell from speaking to the guy who serviced it for 30 years and from the documentation, it appears to be 27 feet. Will have to nail that down don't you think? But in any case, it has towed beautifully with the Tundra, even with my pot belly, my wife, three small kids, a load of stuff including power wheel jeeps, and a packed trailer. Have never noticed a problem. But I can confess I have not put a full pencil to it, do I have to? Also have scale locally, I could nail it tothe pound if I really wanted to ...

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Steve
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Old 12-07-2008, 12:31 PM   #40
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I have a 04 2wd Tundra towing a 63 TW. It does ok not OK my next TV will be a 3/4 ton something. Looking to the 2010. So I'm a year or so away.
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Old 12-07-2008, 12:32 PM   #41
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Steve,

It's a good idea to weigh everything, though I confess I haven't. You can get the true tongue weight with a lever and household scale. My owners manual tells how to do it, but you've got a 1978 and may not have a manual. Probably you can find how to do that online. It could be your Argosy is shrinking as it gets wet and once was 30', but has lost 10%, thus it will get lighter. Argosys were made to be the less lux line and also to be lighter (like Safaris in the past decade or so). They probably were not Sanforized* to save on costs. They are also before the wide body which added weight. Thus your Argosy probably weighs a lot less than my 25' Safari.

Gene

*only old people will understand "Sanforized".
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Old 12-07-2008, 01:55 PM   #42
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Payload seems to be the first wall you run-up against in any of the 1/2 ton trucks. I see that for '09, that Ford is rating the F-150 as being able to tow 12,500lbs. At 10% tongue weight (1,250 lbs.), how much do you think would left for fuel, people, and "things",... not very much. It seems to me that all of the manufactures tow ratings are very optimistic, in regards to safe, real world towing, for 1/2 ton units.
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