Join Date: May 2003
Location: Tinton Falls, NJ
The diff swap itself is a direct bolt-in. The driveshaft flange is the same, and the axles even use the same splines, so it is just a matter of dropping out the 7.5 pumpkin and bolting in the 8.8 unit in the same location.
As for the drum to disc swap, that gets a little more complicated. The issue is that the drum brake cars used a diagonal split system and the disc cars used a front/rear split. So basically the easiest way to do it is to use the disc brake car's master cylinder, run a new brake line to the rear and run the crossover line from the left rear brake hose to the right rear. If you have the complete rear disc spindles, then just unbolt them and swap them over, but if you don't, the drum spindles are actually the same exact part, you just need to drill out 2 holes for the caliper mounting bracket and swap over the all the disc brake parts. You will also need the parking brake cables off the dics brake car. So basically if you still have the donor car, it should be pretty straightforward, but if you don't, you might end up buying a bunch of new parts to make it work.
-91 Cougar LS, coming soon, complete overhaul
with a 427" Windsor.
-90 XR7 5-speed black on black w/sunroof, MP2, coated rotors, double intercooler, 15%OD, ported heads, comp stage 1 cam, 85mm TB, 90MM LMAF, 80# injectors, and ported big valve heads
-98 Mark VIII LSC, Procharger P600b, TR3650 swap and 3.73s.
-90 SC Automatic rustbucket winter beater
-97 Tbird Sport 4.6 Nice weather daily driver
-"Your buddy Mike is INSANE!" -ClintD's dad