All late models are basically interchangeable (all square tail diffs, as well as any GT6 would fit since they all have the larger flanges) The 6 stud is most likely a GT6 and would need the inner most set of holes plugged leaving the only four outer holes for the spring housing. However, 76 and later Spitfires have a bit stronger differential than all others INCLUDING the GT because of a slight change in the ring gear/spider gear housing casting. You might want to check what you have though because there are different ratios - 1970, and earlier will not bolt up since the flanges are smaller and use smaller bolts
Original Message: ----------------- Fellow Listers; This afternoon I removed the differential from my '77 Spitfire, for it was getting very noisy under load. I have several used differentials available to swap in (four actually), however I noticed that one of them is different than the rest. It has a drain plug on the bottom and it has 6 holes for the mounting studs. I'm assuming that this differential is from an early Spitfire. I have no idea from what car it came from, since I acquired it through a large parts deal. My question: are all Spitfire differentials interchangeable? I know that the early units had different ratios, but will a an early unit mount up to my '77? Thanks for the information, Matt Milkevitch'77 SpitfireWillow Grove, PA You are subscribed as v6spitfire...@cox.net Spitfires@autox.team.net http://autox.team.net/mailman/listinfo/spitfires http://www.team.net/archive -------------------------------------------------------------------- myhosting.com - Premium Microsoft. Windows. and Linux web and application hosting - http://link.myhosting.com/myhosting _______________________________________________ Support Team.Net http://www.team.net/donate.html You are subscribed as arch...@jab.org Spitfires@autox.team.net http://autox.team.net/mailman/listinfo/spitfires http://www.team.net/archive
