BIGTY2009

Ok i have a couple questions if anyone could answer them that would be great, I have a 89 mustang that and im planning to swap the rear end out in about 2 weeks, but first i have a couple questions, alright the rear end im putting in is from ford racing its a 31 spline with 8.8 gears, now the question i have is will i have to swap out my stock rear axle when swapping the rear end? also if my aluminum driveshaft is not 31 spline will it need to be swapped out also? I wanna say the driveshaft is a 28 spline but im not positive, any answers you guys have will be great and if anyone knows of a step by step tutorial of how to swap out the rear end please let me know, thanks

, Tyler

BIGTY2009

Also here is the link for the rear end, in case you need more info on it.
http://www.americanmuscle.com/ford-31spline-88-lsd.html

93hatch306

driveshaft will work, your axles won't. stock Mustang axles are 28 spline. you should be able to get a set of stock style c-clip Mosers or Superiors for under $300.

AdderMk2

you bought a differential ... not a rear end

you will need a set of 31 spline axles, and a full install kit. not to mention, bringing it to someone who has a clue... you WILL NOT be able to install this on your own

Bubba 95SN

Your lady friend has a rearend. The Mustang has a differential.

Force4

I just helped my buddy do a gear swap on on his 8.8. Pain in the A**. We got it done but I would advise you have someone with a lot of knowledge about gear swapping with you.