Axle questions
 

Well I have my 94 idi turbo with the junk dana 50 ttb and the 10.25 rear end. Now I have 3:55 gears and my fuel milage is amazing around 17 mpg. But I recently found a deal I can't turn down for the same axles but out of a 89 f250 and with 4:11 gears I know my milage will drop but does anyone know how bad ? And the guy told me the axle has the speed sensor about the ring gear like mine so this should work right ?

I have a 86 6.9 turbo zf5 speed so gle cab with 4.10s and I get like 12ish in the winter and in the summer I had to many problems to get a accurate number. But I could go about 220 miles on one tank which would be about 15mpgs. If you are on the highway 4.10s suck. 65 is about all I can do without raving the piss out of it. But I can move a mountain with that gearing. Im looking to get 3.55s what is your rmps at 70mph?

At 70 about 2200 -2300

what kind of transmission do u have standard or auto? I have a 92 7.3 with a 5spd and get 18 mpg at 70mph with car trailer and car on trailer with 4.11's with 33's

Piece of shit e4od but it abd the trabsfercase were just completely rebuilt 12k miles ago:jump: