Cost is 125 300 for the rear axle. Drag rear end out from under car and out of the way.
Upgrading The Mustang Fox Body Rear End
Fox body 8 8 rear end. This keeps the rear end from flexing under hard launches which in the. 58 34 wms to wms 5 x4½ bolt pattern. The 88 is a c clip rearend which is a major weak point because if you break an axle it can come out of the housing and youll lose the wheel and probably quarter panels while youre at it. 88 rear end brace kit our brace kit is designed to tie the cast center section to the axle tubes. The 86 93 fox mustang 88 is a poor choice imho. Add another 100 200 or so to complete the brake upgrade.
Both ratios have 10 516 disk brakes with vented rotors as standard equipment. The completely brand new moser m88 rear utilizes the 88 ring gear on the highly successful oem 88 but adds some major improvements over the stock 88 housing. It starts with using the same premium nodular steel moser has used in the industry leading moser 12 bolt and moser 60 rear end assemblies. 1 4 bolt 2 huge upper trailing arm mounts cast into housing it is the only 88 with a centered housing however. Also the lack of having a lift at my house i have opted to have a family friend with resources and tools whom is a professional mechanic to do my rearend and differential upgrade on the 1979 ford mustang autocross weekend warrior project car. I think your best choice over all would be the ranger 88.
If you arent using tubular control arms then install the old arms on the 88 rear. Ford 88 rear end rebuild looking at the additional tools and trying to find parts. It takes 2 guys the first day to get the old rear end out and the new one bolted in place. Grease the sides of the bushings so they will slide into the chassis mounts. Grab the 88 rear and slide it under the car. I choose 355 since i do more highway driving.
The original fox body 88 used from 86 93 can be easily upgraded with better axles a stronger limited slip with more clutches and bigger axle bearings to become a very durable yet light rearend. The only bad thing i can say about them is the pumpkin isnt centered. 79 93 fox body mustang 9 inch rearend builder 374700 complete ready to bolt in currie 9 inch rearend for 1979 thru 1993 fox body mustang zephyr capri and fairmont.