" From: farna@xxxxxxx " " " 3. The bolt pattern to the transmission is the same on all 72+ AMC " engines EXCEPT four cylinders. Audi uses a unique pattern, GM the SBC, " and the AMC four uses the small GM pattern. There is one thing to look " out for though. Six cylinder bells are 6.5" deep, and eight cylinder " around 8.0" deep. not strictly true. the t-14 was used behind 2bbl 290s and 304s as early as '68, and the t150 and sr4 were used behind both sixes and v8s. all these bells are shallow. the deep bell was used for t-14s [in jeeps], t-15s, and t-10s mostly with v8s, but also behind jeep sixes '72-4 or so. the t-89 used with 327s also has a long input and a bolt pattern similar to the t-10; it wouldn't surprise me if they're the same but i don't know. there was a rare deep bell to put the t-86 or t-15 behind '64-'71 sixes in fleet service. i have a deep 'mexican' bell with a t-10 pattern for early sixes. " I think the T-5 needs the six cylinder bell. if by that you mean shallow, you're right. i don't think there's a single universal '72-up six bell though. " On March 16, 2006 Joe Wyatt wrote: " " > The bell housing off a 6 is the same as on the V-8 isn't it. I found a Bell " > off a 73, was looking at changing out my sons 74 Javelin 904 auto to a Ford " > 1985 T-5-WC (got two last week after looking for over a year for a good " > one) i don't think you can use that '73 bell for the t5 without a fair bit of work. even if it has multiple patterns it won't have the sr4/t4/t5 one; those trannies were still 4 years in the future when it was made. i'd expect it to have only the t-96/t-14 rectangle. i'd look for a '77-up bell. as frank pointed out, it could be behind a 304, and it could also be in a jeep; they used the sr4/t4/t5 family in '80s cjs, and they used the t150 alongside amc cars in the late '70s. ________________________________________________________________________ Andrew Hay the genius nature internet rambler is to see what all have seen adh@xxxxxxxxxxxxxxxxx and think what none thought