Does anyone have a line on a 7.5 differential in a a more highway user friendly ratio? I have the stock 4.10 in my truck right now, but would like to source a 3.56 or a 3.42. Thoughts?

 

i have a 3.5 .....

how did u end up with "stock" 4.10 gears in a 7.5in diff?

 

Yea not much of a chance that's a 7.5" diff if it really has 4.10's.

 

That is how the code reads on the number plate.
F292
F=7.5 inch gear
29=4.10 ratio
2=2 pinion, open diff

Source:LC ENGINEERING Differential Tech

I don't pretend to know everything, but this is the information I found. It would seem to be verfied by the following:

Source:Used TOYOTA PICKUP Rear Axle - Buy used TOYOTA PICKUP Rear End

Year: 1980 Toyota TOYOTA PICKUP Rear Axle

4x2 1/2 ton 3.42 ratio
4x2 3/4 ton (4.11 ratio)
4x2 1 ton, cab & ch (4.11 ratio)
4x2 1/2 ton 4.10 ratio

Thoughts?
4x4 (4.38 ratio)

 

Interesting, the only time 7.5" gears are usually found in 4.10 they are in the front differential of an 86+ 4 wheel drive truck.

 

I honestly dont know, I bought this on ebay while in Afghanistan, and am discovering things daily

 

My 80 also had 7.5" 4.10's.. Same code too F292

 

damn.
mine's written A01A

cool.

wouldnt mind trading, but idk about the $$$ for shipping, especially to FL. that ****s heavy!

 

not sure the shipping is a deal killer, you have a 3.42. Why would you want to give that up? You would get low end grunt, but at a price at the pump..

 

ya the shipping would kill.
i think its actually a 3.5***
there is no low end, its more for top end/highway driving.
its been sitting around and i highly doubt i will be putting it back in my truck. i currently run a 4.30, but i wanna see if i can get my hands on a 4.10-11 or possibly a 3.90 --the best of both IMO, some low end and still can drive (somewhat) on the freeway

i average 10gal every fill-up. around $30-35 for super.