Do you guys know of anyone that has a T100 with the 3.90 (3.91-3.92) gear ratio? or of one wrecked, in a junk yard etc? I have a 91 p/u with a diesel and I think the 3.90 ratio would be perfect for hwy cruising rpm. But buying a new gear set is hard to justify with the 1-2mpg I might get as an increase. I have a 4.56 geared or 4.10 geared front end to swap if anyone is interested. Thanks!

 

This is what I found on car-part.com

Axle Assy Rear
4 cyl, AT, 4.08 ratio
4 cyl, MT, 3.77 ratio
6 cyl, 4x2, w/ABS, 1/2 ton, 3.77 ratio
4 cyl, AT, 3.92 ratio
6 cyl, 4x2, w/ABS, 1/2 ton, 3.92 ratio
6 cyl, 4x2, w/o ABS; 1/2 ton; 3.77 ratio
6 cyl, 4x2, w/o ABS; 1/2 ton; 3.91 ratio
4 cyl, MT, 3.62 ratio
6 cyl, 4x2, w/ABS, 1 ton (3.92 ratio)
6 cyl, 4x2, w/o ABS; 1 ton (3.91 ratio)
6 cyl, 4x4, w/o ABS; 3.91 ratio
6 cyl, 4x4, w/o ABS; 4.10 ratio
6 cyl, 4x4, w/o ABS; 4.30 ratio
6 cyl, 4x4, w/ABS, 3.91 ratio
6 cyl, 4x4, w/ABS, 4.30 ratio
6 cyl, 4x4, w/ABS, 4.10 ratio

 

I know 3.90 rears are easy to get, I'm looking for a cheap 3.90 ifs front. It has to be pre-tacoma for the correct diff and rotation. Thanks for looking though.