How much would the max trailer weight change when changing out 3.92 for 4.10 gears?

Looking at the Dodge website...

(Specs & Weights) http://www.dodge.com/bodybuilder/201...ammlup1500.pdf

...the 4.10 ratio is shown only for the Regular Cab R/T and the max trailer weight listed for it is 4,000lbs LESS than the same cab configuration with 3.92 gears.

The only difference I can think of would be the lack of a Class IV receiver hitch on the R/T. (Note: Tire height difference is actually 2" shorter on the R/T)

Whaddya think???????????

 

Waste of $

 

Was using 3.92 for comparison since it was adjacent on the chart and easy to cross reference.

 

The R/T is not intended for max towing, it is oriented towards sportiness. No 'normal' Ram 1500 has the 4.10 gears so there is nothing to judge apples-to-apples with the 3.92.

Rob

 

...nevermind

 

I believe the OP might have wondered if the 4.10 gears were installed on a non-R/T Ram, would the tow rating go up?

Obviously, the R/T has other differences besides gearing the preclude it from getting more tow capability.

However, I would have to imagine that the slightly shorter gearing will only help when towing if it was installed on a regular Ram.

If anything, I think the biggest factor hindering the Ram's ability to tow is the rear suspension. However, if you can "figure that out" (be it good weight distribution in the trailer, air bags, a weight distributing hitch, or a combination of those), I think that otherwise the Ram's tow rating is actually rather underrated.

Just look at the Fords (I don't mean to bash any trucks here, I'm just using them as an example), they had much smaller motors (I'm referring to the ones before the new offerings of motors that were just released), yet their towing capacity was always greater than the Ram...

 

If you wanted to speculate on the capacity increase of swapping 4.10 gears into a non-R/T I suppose you could compare the increase from the 3.55 rear end to the 3.92 and infer that going from 3.92 to 4.10 would net you about 50% of that increase. That is, of course, unless some other part of the truck becomes the limiting factor, such as cooling system capacity, brake capability, suspension, hitch ratings, etc.

Having said that, my thought would be that you probably wouldn't be able to safely assume any increase over the max towing capacity your truck is already spec'd for. What you would get is probably higher operating RPM at any given speed, which might allow your engine to operate a little more comfortably, possibly not shifting in and out as much on hills. But who knows (only the engineers).

Rob

 

I like your answer.