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Old 07-05-2013, 08:15 AM   #41
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Originally Posted by jabres View Post
How can it even be possible my 2003 Chevrolet Tahoe 1500 4x4 3.73 towing capacity be all the way at #7400 when this 2500 suburban is ONLY 7600? Going from a 1500 to a 2500 with a 6.0 versus a 5.3 and I can only tow #200 more pounds?
This makes no sense again....
It's all about being able to get the towed weight moving up to speed...the factors being the weight of the vehicle, weight of the trailer, engine power in terms of torque and mechanical gearing (rear end ratio and trans gearing).

From the numbers I've seen, the torque of the 6.0 vs 5.3 is only 20 - 30 ft/lb depending on the year, the 2500 Suburban will weigh considerably more, the gearing is the same and therefore, the max towing isn't all that different than the Tahoe.

A 2500 Suburban will work better should you find one with 4.10 gearing.

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Old 07-05-2013, 08:23 AM   #42
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It's all about being able to get the towed weight moving up to speed...
And remember, when you are towing, you are not drag racing. Who cares if it takes a few seconds more to get up to speed? You are suppose to be enjoying the fact you're going camping.
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Old 07-05-2013, 10:02 AM   #43
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jabres - it's a good thing this thread went as long as it did, some of us old timers just learned some things right along with you. The 3.73 gears appears to be the deciding factor as a matter of point when you asked me earlier about my Tundra's tow numbers if I would have thought it through I would have realized they include 4.1 gearing with the Tundra tow package. The Tundra 1/2 ton truck with tow package is very comparable to a lot of 2500 vehicles (with 4.1) because Toyota has beefed up the metal in the gears.

I hope you find something to fill your needs, since you were shopping for another vehicle anyway you are taking the correct approach by gathering the info and getting it right before you buy. Don't stress it will all come together, enjoy the challenge then enjoy the camping.
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Old 07-05-2013, 10:22 AM   #44
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yea thanks for all the info guys-
If I ended up buying this 2500 suburban 6.0 w/ 3.73's anyone know ball park cost if I ended up not being satisfied with the 3.73 and wanted to change it over to the 4.10's?
Thanks again
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Old 07-05-2013, 10:24 AM   #45
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Are you familiar with how tow ratings are figured?
An empty truck, 150lb driver, no 'extra' options other than the max for towing.
Take truck weight, GCWR and you get tow capacity.
This means that the 7400 INCLUDES all the cargo and passengers in the truck as well as the trailer.
Add some options and that 7400 drops as the truck weighs more.

So you're likley at or over the limit on the 1500 tahoe. Running at max loads is a lot harder than running lighter - just fill a wheelbarrow to the max vs half full and go push it around the yard and you'll feel the difference first hand. Yes, you CAN push a wheel barrow full of gravel but you won't want to go far and won't be comfortable doing it.

Now the 2500, at least in trucks, gets you bigger frame, suspension, more payload. Should get the same upgrades in the suburban 2500.

Longer WB will also feel better but will make getting the WD right harder.

As for power...I have a 6300lb TT that I pulled with an older expedition (5.4 motor, 230k miles) and it could keep up with traffic, accelerate up hills. Moved to a sliverado (5.3 same gearing) and I can now rearrange the decor in the TT - off the line there is no comparison. MPG is the same. It has P tires where the expy had E tires and E is WAY better (P feels liek driving on 4 blocks of jello).


Quote:
Originally Posted by jabres View Post
Hey guys I need a little advice here. I currently own my 26' 2008 forest river wildwood tbss travel trailer weighing in at #5880 empty. Loaded down I am around #6500. I currently tow with a 2003 Chevrolet Tahoe 4x4 5.3 with 3.73 rear end and I am looking to replace it as it just does NOT have the power, and I wont take it on trips pulling the travel trailer very far.
My tow capacity on the 2003 Tahoe is#7400 pounds which is a joke cause there is no way I could safely tow that much.

SO I am really close to buying a 2005 suburban 2500 model with the 6.0 gas motor and 3.73 rear end... I am having trouble finding a "true" towing capacity for this vehicle.(the dealership does not have the owners manuel)Its really hard for me to believe where I am reading in a few places the towing capacity for this 2500 suburban is ONLY 7600 pounds when my little Tahoe 1500 model with the smaller motor is at #7400??

Anyone have some advice or experience on this? I realize a diesel would be the best for pulling but that's not in my budget right now...
Will this 2005 suburban 2500 6.0 3.73 be sufficient for pulling?
Thanks, in advance
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Old 07-05-2013, 10:27 AM   #46
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yea thanks for all the info guys-
If I ended up buying this 2500 suburban 6.0 w/ 3.73's anyone know ball park cost if I ended up not being satisfied with the 3.73 and wanted to change it over to the 4.10's?
Thanks again
$1000 I"m guessing. I changed R&P in my jeep years ago and parts then ran $300 or so. Changed the fluid in my expy and JUST the fluid ran $75 for ONE diff (synthetic plus additives for the limited slip).
Add in labor, times both diffs (assume it's 4x4?) and you may have to have the speed recalibrated.
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Old 07-05-2013, 10:31 AM   #47
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cincy ed- do you remember the weight of the 32' toy hauler you and your buddies bought that was too heavy for your 150 and your buddies suburban 2500?
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Old 07-05-2013, 10:37 AM   #48
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prof fate- yea I understand all the towing capacities...thanks for all the explanations though,was helpful.
The million dollar question I am debating if the 2005 suburban with 3.73's and 6.0 motor will have the power I need to tow my travel trailer #5880 empty weight and loaded probably around 6500 6800...(tow capacity 7700)
The reason I am getting a new tow vehicle in first place because my 1500 Tahoe 3.73 with 5.3 does not perform well at all trying to tow it long distances
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Old 07-05-2013, 10:50 AM   #49
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My expy has a tow rating of 7500 lbs and my trailer - while hundreds if not 1000 under that is actually putting me at the limit.

With the specific options on my truck (owners manual!) I lose 1000lb tow rating (4x4, 17" wheels).
The GCWR is 12,500 - put the TT and the truck on there and I've got about 500lbs left to work with - I'm more than the 'ideal' 150lbs, my wife, kids, dog, and misc stuff we put in the truck no doubt is over the 600lbs. So we are exceeding the limits. I don't feel unsafe, but I can feel the load.

Enter the silverado 1500. Similar engine/power (on paper anyway) and lots more tow rating - 9600. 3.73 gears vs less than that (3.55? don't recall) on the expy. Truck weighs about the same and has 24" more WB.

I'm still at the limits - GCWR is 15,500 so we're well under that, but the trucks GVWR is such we're near maxed out with just the passengers and dog! And my kids will still grow for years to come...

Now it feels much more powerful - why? 200k fewer miles is my first guess. English top gear did some dyno tests on old cars and saw 100+ hp drops at 100k miles. So how many miles on your tahoe? On the sub2500?
Gearing? Does 3.,73 vs 3.55 make THAT big of a difference?
Does the new chevy 6spd vs fords 4spd trans make a difference?

Does that 2000lbs of 'extra' GCWR make a difference?

Tow packages - what's on each? Both of mine have the tow packages - HD cooling and whatever else they add.

I looked at suburbans/tahoes when we got the expy and from what I recall the tahoe/1500 sub is a car, the 2500 is a truck.

As for how comfortably you feel towing...that's up to you. Getting everything is set up right is the key. As I said, the 10 ply E tires on the expy feel 100 times better than the P rated 4 ply on the new truck, but I'm not quite read to go drop a grand on 4 michelins quite yet. I don't feel much if any difference with the extra WB - i thought I would.

Our first trip with the new truck was to a flat area in western ohio. Sunday we leave for the mountains, our typical camping destination. I'll have a better idea how it runs compared to the expy after that.
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Old 07-05-2013, 10:52 AM   #50
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I am sure you will be fine performance wise with the 6.0 and 3.73's. I tow 8500lbs with my current 6.2 and previous 5.7 hemi. Both 3/4 ton 4x4 TV's. Would more gear be better? Of course but do not under estimate the abilities of a TV with 3.73 gears either. As to the tow ratings, most vehicles are derated with 3.73's geeze my Dodge 2500 Megacab 4x4 was only rated to to 8400lbs and had a GCWR of 15k yet one wiuth 4.10's was rated at 10,400 and 17k. So I would not be concerned in the least about performance.
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