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Old 07-31-2014, 10:46 AM   #15
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Originally Posted by Cumminsfan View Post
True to a degree. But the brakes on a 3/4 ton SRW are the same as a 1 ton SRW. The tow ratings for a 1 ton are higher than a 3/4 ton, which means the brakes on a 3/4 ton are not working as hard. Empty it's a wash but considering the brakes on a 1 ton have to stop more towing weight than those same brakes on a 3/4 ton SRW should be better when towing less.
But it is a misconception to think that during normal towing the truck brakes are stopping the trailer (except for pin weight). If the truck brakes are having to stop the trailer, then the rig isn't setup correctly. Because if that is the case, then the trailer is pushing the truck and can cause handling problems (as in jack-knifing). While this is more critical with conventional trailers because of the rear pivot point, even fivers can push the tow vehicle causing steering issues. If under normal stopping the driver doesn't feel the trailer retarding the truck, then the setup is wrong. Another sign is hitch clanking went transitioning from towing to stopping. My last 3/4 ton diesel still had the original disc brakes with acceptable pad thickness at 90k miles, with about 60K of that being towing. Panic stops are even more critical that the controller and trailer brakes have the capability to decelerate the trailer faster than the truck brakes can slow down the truck.

Well that is how it is supposed to work, I don't really know how many rigs are set up properly. But anyone that is using their truck brakes to stop the trailer may have worn out truck brakes right when they need to make a panic stop.

Larry Day, Texas Baptist Men volunteer
'13 Silverado LT 3500HD D/A CCSB 2wd, custom RKI bed
'17 Puma 351THSS toyhauler
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Old 07-31-2014, 08:05 PM   #16
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Location: South Lyon, MI
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I am in the same boat

I bought 2009 silverado 4.8v and 3.42 with all towing packages last year for towing a hybrid and upgraded to avenger 26bh not knowing anything about towing. I am now seeing the need for a bigger truck but can't afford it. Just had everything weighed and am 500lb over gcvwr. Axle weights are good with wd hooked up. Truck drives and handles good at 60mph, just not enough power. With all axles added up I am at 11,500 lb and manual says 11000 is max. Truck is 5850lb and tongue wt is 760lb I tow it three hours (with trailer mode on) to my daughters house in OH and have no problems. Trans temps stay about 175. We booked 2 weeks at Fort wilderness next month and will avoid mountains and just take it easy and see what happens.

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Old 08-19-2014, 01:36 PM   #17
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New Specs and Info Needed

Below are updated specs to the my truck and trailer.

2001 GMC Sierra 1500, 4.8L, 3.42

Truck Specs
Towing Capacity: 6,300 lbs
GVWR: 6,200 lbs
Curb Weight of Truck: 2815 lbs

Trailer Specs
Dry Weight: 4,4630 lbs
GVRW: 6,500 lbs
Tongue Weight: 434 lbs

Also, how do I find the GCWR? If it's listed somewhere, I can't find it.


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Old 08-20-2014, 08:28 PM   #18
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All I can say is "go for it." Your truck will probably do a decent job of towing the trailer you're wanting to pull.

Just make sure that the suspension and brake are at 100% condition. And make sure you use a good equalizer hitch and sway control--not a piece of junk hitch.

Your tranny cooler is the best $150 anyone can spend, as heat is a transmission's worst enemy when towing.

If your rear end squats too much when you load up the trailer, consider putting air bags on your rear suspension. Your truck will handle and brake better with them installed.
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Old 08-21-2014, 08:55 AM   #19
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Originally Posted by BorisAF View Post
Also, how do I find the GCWR? If it's listed somewhere, I can't find it.
It should be in your Owner's Guide. GM does a lousy job of helping you find specs for trucks more than 10 years old, so I couldn't find it on the internet.

In my Ford Owner's Guide, the GCWR is included in the section on towing, which is buried in the section on Driving. GCWR varies, depending on engine, tranny, rear axle ratio, 4x4 or 4x2, and maybe even wheelbase (cab style). But one thing you can count on, with single rear wheels (SRW) the GCWR is not your limiter as to maximum trailer weight. You will exceed the GVWR (payload capacity) of your truck long before you get close to the GCWR (pulling capacity). So if you don't exceed the GVWR, then you need not worry about the GCWR.
Grumpy ole man with over 50 years towing experience. Now my heaviest trailer is a 7,000-pound enclosed cargo trailer, RV is a 5,600 pound Skyline Nomad Joey 196S, and my tow vehicle is a 2012 F-150 3.5L EcoBoost SuperCrew.
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Old 08-21-2014, 07:16 PM   #20
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Thank You All

I would like to thank everyone for their responses. I'm glad I joined iRV2. I've learned so much from just my first post.

Again, thank you everyone for taking the time to respond.


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