The "5.0" came in the Fox Mustang in 1979 and 1982-1993. (1994 and 1995 also had a 5.0 but it was not "Fox", it was "SN95".) The 8.8 came in 1986 and newer V8 (including LX 5.0L and Cobra, not just "GT") Fox Mustangs. So 1979 and 1982-1985 did not have an 8.8", they had a 7.5", and only 1982+ had LSD. 1979 did not.
7.5 Rear end question?
- Thread starter Thebigwhopp
- Start date
I’m not sure of the intent of your reply. I should have stated it differently that I was mostly thinking of the E7, 87- 93 foxes as 5.0 cars. My 79 said 5.0 on the fender, but had more in common with older 302’s. The limited slip in my 79 was a Ford part I swapped in before 8.8’s were fairly available and affordable.
The main thing the OP needs to know the 8.8” rear in Mustangs came with four lugs, so no front parts will need swapped when the rear is bolted in to keep matching wheels. And you posted what years to look for, thank you.
The quad shocks are another issue, but the brackets for them should not prevent an 8.8” from going into a 7.5” car.
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Boostedpimp
20+ Year Stangneter 
Just buy a cheap 8.8 rear and swap the gears of choice in while its out of the car. Replace teh pinion seal as well and begin worrying about something else.
https://scranton.craigslist.org/pts/d/mustang-88-rears/6748677407.html
https://scranton.craigslist.org/pts/d/mustang-88-rears/6748677407.html
At that price, he could have the 8.8” ready to go, then see how much abuse the 7.5” can take! 
I’d like the report and it sounds like fun!
I’d like the report and it sounds like fun!
