What is the weight of your 5th wheel? 1500's are not usually used to tow a 5'er. Upgrading gears is only one small piece of the puzzle when it comes to towing a 5th wheel.zacharyzoo said:was wondering what the best set of gears is for towing. I tow a 21 foot BIG FOOT 5th wheel. I think my truck has 3.55's now. :help:
I agree completely.....I have 4.56s and would not have bought anything different, not even 4.10s. They work great with the 5 spd auto and the Hemi.rpounds said:For towing only, or for towing only once in a while? With a 5 speed auto tranny, I would opt for the 4.56 gearing. I did this to my 4.7 with auto about a year ago. It made all the difference in the world while towing our trailer. We have a similar sized trailer. If I had a 4 speed auto, I would go with the 4.10 gearing. This is only because of the final drive RPMs while running on the interstate. The 5 speed has the extra overdrive gear that keeps the RPMs reasonable with the 4.56 gears.
It makes the truck a lot more fun to drive, with or without the trailer.
Absolutely true, at least up to a point. The same is true of engine wear and tear. I've seen some elaborate write ups on how much faster an engine wears based upon RPM. Hogwash. Engine loading has much more to do with wear. Besides, most wear occurs at cold start up.RPMs alone do not dictate fuel economy... Its the load on the engine at any given RPM that you need to be concerned with if your after MPG