Things that have been done for a start: full cosworth rear end 7.5" lsd 3.92 gears bolts in directly 2nd gen. toyota supra rear end ?? lsd 4.11 gears uses spacers and standard XR drivetrain late model Ford thunderbird 7.5" housing plus ford ranger carrier with lsd and 4.10 gears. uses thunderbird axles and driveshaft and T5. (search on turboford) -------------------- Matt Smith mothra@fireantracing.com Correction: the 7.5" Tbird diff conversion uses stock XR axles. And and carrier can come from any 7.5" tracloc vehicle, Aerostars, Rangers, Bronco II's. -Scott Skye- the TracLoc is a clutch plate design, just a smaller version of the 8.8". I've got a Toletta diff I'm going to try first. But see if you can find rebuild kits for the Toyota. I haven't. Probably need to look harder. The clutches are smaller in the Toyato. I've been taking the rust off the car and I've got the paint for it. I got another roof(black too!) I'm going to use part of. I bought a welder and have been practicing with it. Just welded up the wifes Porsche this weekend. -Scott "The 85-93 Supra 8" diff is the same as the 8" "V6" RWD Toyota truck stuff. The case is different, but the ring & pinions the LSD clutch disks and stuff are all the same." Kartwheel The easiest bolt-in is the elusive 7.5 LSD that is identical to the XR4Ti open diff except for the LSD. These only came in the European Granada Scorpio Cosworth, AFAIK. I brought one back with me from England on a trip two years ago and have been enjoying it since. -------------------- Geoff 85 XR4Ti daily driver do know there was 5 merkurs from PM Motorsports at Carsile with BMW rears in there cars.All had different ratios. Eric