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NC Hauler wrote:

Old-Biscuit wrote:

Bedlam wrote:
I would not be surprised if the RAWR is based on his current tire capacity. When you find which axle your truck is using, you can then get the specifications on that axle to find the limits. For example, my truck runs the Sterling 10.5" axle rated at 9750 lbs. My GAWR was based off the tires that came on my truck even though the same frame, brakes, axle and suspension is used on other trucks with a higher rating than my 6200 lbs. I currently run 4500 lb rated rims with 4850 lb rated tires along with suspension aids to give me a 9000 lb RAWR.

And yet you still have a truck with a GVWR of 10,000#.

Agree with you OB...I don't understand how some think they can add tires that are rated to carry more weight than their axle and think all will be well....the axle and suspension have now become the weak link...Heck, if that were the case, I ought to be able to buy a 1/2 ton p/u, put G or H rated tires on it and I'll be able to handle thousands of pounds more then, though, the rear axle rating will be pushed well beyond it's limits..

Let's see, GVWR is a joke, very few, if any use that rating any more, "just a number", (reason I'm referred to as the weight police:)...THEN, I buy into RAWR, to a point, and if a 6,084# RAWR isn't enough...heck, can the OEM tires, and jack that sucker up to where it can handle 9,000# with the tires, though the axle is only rated at a little over 6,000#:h
IF ONLY it were THAT easy........

How much of the RAWR does one cut into? If it's rated at 6,000# (just an example), is it ok to to with a 4,000# pin weight in a 3/4 ton truck, knowing that we still 4 or 500 # reserve to carry through bumps, stops, etc? Just curious...

My 06 3500 Laramie has the same part number rear axle, springs, brakes, and frame as it's dual wheel SLT cousin. I've done exactly what was described - went to higher rated wheels and tires, so I would have a margin of tire capacity to spare when hauling at door sticker max weight, rather than run load range E tires at maximum. I also added an air suspension designed for the 3500 dually. So, do I now haul at the same weight all the time as a 3500 dually? No, but the truck can. I had the opportunity to load by weight 4500lbs payload of bulk material and the truck handled it no problem, just like it would if it were a dually.

Sticker axle ratings are based on the lowest rated component. If you have a 10,000 capacity axle and suspension factory equipped with 6000 capacity tires and wheels, the tires & wheels determine the sticker rating. If you change to 9,000lbs capacity tires your axle's designed capacity didn't change downward to 6000lbs it is still the same axle.

And if your truck started life as a chassis-cab rather than a pickup truck, re-rating by a certified body upfitter is "that easy" as it left the OEM as an incomplete vehicle and final sticker ratings are determined and can be changed by a body builder / equipment upfitter.

A pickup truck is a complete vehicle and no re-rating information is offered by Chrysler. I can't speak for other OEM's.

When I called Chrysler with my VIN and asked what is the minimum component that determined the door sticker ratings the answer was "we cannot see that information for your vehicle."

So I then did part number research with the help of a Chrysler dealer, comparing to a same year SLT dually.