My very heavy duty headache rack, truck tool box, and tools probably puts my extra loaded weight pretty close to yours so I guess the difference between a reg cab long bed and an extended cab short bed is about 400lbs. I also have 285/75/R16's but are mud tires and load range D.

If your truck weighs 5900 you don't have much before you hit the GVWR of 6400lbs. With your plow on you must be real close.

 

im well over 6400 with the plow on, plow weighs over 600 pounds. i gotta clean out my truck, has a bit too much stuff in it, haha. truck box is coming off for the summer so i have full bed access. im going to be adding another 50ish pounds of wiring and what not to my truck when i install my hideaway strobe setup, but thats nothing.

 

It's not the weight that makes the difference. Its the additional stability of the longer wheelbase. According to popular theory, an extended cab, short bed, should have the same tow capacity as a regular cab, long bed, as the wheel base is about the same.

Don't know if it actually works that way though......

 

Thanks guys. So I should be okay. I didn't look for it in the manual, I looked up specs online. My biggest worry was pulling my pig out of the lake at the ramp. It's not easy on the truck at all.

Anyway, planning on removing the check valve here in the next 2 weeks along with a couple other projects.

Also, I never tow with O.D. on.

 

my 91 sb rc says right on the bumper that it is good to tow 5000# or 500# tong weight. the sticker that was on my tow package was also rated for the same thing.

 

Put the tranny in manual low (1) when pulling the boat out. That way the low/reverse band is holding not just the overrunning clutch.

 

Awesome! Thanks for the tip!

 

When I had my '98 RCSB 5.9 4x4 I looked up towing capacity and found it was 7400# with the 3.92 gears. At the time, I had a good size house in middle Georgia with a few acres of land and was forever hauling heavy loads and pulling good size weight, up to and probably a bit over the rated capacity.

The bass boat I had at the time I bought the truck was a 17' with 120 HP engine and I found I actually had to re-adjust the bunks and front roller of the trailer to have the boat sit farther forward to increase the tongue weight to keep the relatively light boat/motor/trailer combo (about 2300 lbs. empty) from wanting to sway on the highway.

The boat I traded it in on in 1999 didn't have that problem, it was longer (20') and with the 175 HP motor it was a good bit heavier, somewhere in the 3000 lb. range.

Pulled that SOB up some of the nastiest, slickest red clay ramps you ever saw and never had a problem. Did have to use 4 Lo a time or two though...