needing help on gear vendors splitter

[jakehardgrave]

hey guys I drive a 2001 7.3 f250 SWR. it currently has the 3.73 axle ratio. First off, is it correct to say its an f350 because it has the factory camper helper springs and I can put a set of 4'' blocks on it? I realize issues with insurance paying on wrecks with overload.

anyway, I would like to dive into a project involving the gear vendor splitter and a new axle ratio. My question: Right now my 70 mph cruise with factory torque converter locked is about 2200 rpm. With the double overdrive, my goal is highway cruise at 1500-1800. Will the 3.73 bring my double overdrive too low? So I probably need the 4.10 right? And then I might as well just rebuild the 3rd member right? Suggestions on building a bulletproof sterling 10.5? (good aftermarket axle guts).

Thanks for all the help.

[klhansen]

Welcome to TheDieselStop

Something isn't adding up unless you have teeny tires on your rig.

My truck has 265/75R16's with 3.73 ratio gears and 70 mph cruise is barely over 2000 rpm. The 235/85R16's (the other stock size) are the same exact rolling diameter. My truck is a 6-speed, but the engine rpm should be the same in OD with an auto tranny.

I don't think that you need to change gears to 4.10's. The gear vendors OD unit should work just fine.

[jakehardgrave]

I have 285/75/16's. Its probably more like 2100rpm after looking at it today.