While there are some guys here that go to extremes, it's not really a race car group.For all of the companies building " bolt in" 9 inchers for Fox bodies, I would think there would be at least some responses on here??
Quick performance and Speedway both offer a bolt in 9 inch housing and axle package in that price range....I saw a 9" housing ready to bolt in a fox body all you need to do is have a pumpkin and the brakes for like $ 795? On fleabay.
And perhaps I am incorrect here, but when I have looked at 8.8 rear ends they are different sized ( width) than what comes in my 83??
Thanks for the update on what fits what, I must of been thinking about 94 up.... I will upgrade to 5 lugs so new axles in 93 back housings. The 9 inch package from speedway comes with 31 spline 5 lug axles ... I am planning on staying with rear drums, kits for bolt on 11" drums for 9 inch rears available, so trying to keep this simple, as I hope my stock emergency brake cables will bolt on, PLUS larger rear brakes...1986 was the first year of the 8.8 in a fox body. Same width as your '83. Width stayed the same all the way thru 1993. 1994 Mustangs got rear disk brakes which kept the same housing but with wider axles to accommodate the disk brakes. About 3/4" per side. This width stayed the same until '99 or so when it got a little wider.
All V8 Mustangs, and many other models, had a traction-lok differential from the factory. All thru '99 will bolt directly into your '83, There are a lot of them out there.
A little bit anyways, new gears, new eaton posi unit, and new bearings will add up ....The plus with limp's deal is he already has the center section, it's an N case I believe so he has the jump on cost, even with swapping gears.
The housing and pumpkin are a little bigger than a 8.8, is how I understand it...