Hey everyone, got a question about the 8.8" rear. Well the passenger side axle of my '94 GT is bent, so it is in need of replacement. I know it has the 28 spline axles and i know that the 31 splines are stronger. What is needed to put in 31 spline axles in the 8.8" rear? Keep in mind, I am planning to upgrade the gears to 3.73 or 4.10. Should i wait and throw both the gears and the 31 spline axles in together, or can i do one and then the other? I hear that an 8.8" with the 31 spline axles are very strong and will be able to handle what i will throw at it (351W N/A). Facts and opinions are welcome, just be sure to state which of the two you're giving as I recently crossed over to the dark side (Chevy to Ford). Thanx guys!
8.8" rear question
- Thread starter Mig233
- Start date
95strokerPSU
Member
I just rebuilt my rear…to go with the 31 spline axles, you’ll need a 31 spline differential. I got a new 03 Cobra diff from poweredbyford.com. Aside from that, you’re gonna need all the little things little bearings, seals, races, etc. You should wait to do the gears and the 31 spline upgrade all at once, do a complete rebuild, gaskets, everything. I think with labor my rear cost around $1500.
Good Luck
Dave
Good Luck
Dave
fox racer
Member
i have a fox 8.8 but i believe the housing are the same, just the axles are different lengths... if you need a new rear (with the 31 spline axles etc)
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