Chris Attias wrote:
> Does anyone know where can you get a pilot bush to adapt a late
> 3 synchro MGB box to an early (3-main) crankshaft? I've heard
> of MGA owners making this switch, but I'm not sure how its done.
Well ... as others have mentioned, fitting the small input shaft
shaft tranny (3-main) to a later (5-main) engine is accomplished
by purchasing/machining a specialized bushing ... but, I don't
think thats what your asking ... ;^)
Fitting a later large input shaft (5-main) tranny to an earlier
(3-main) engine requires that you either 1) machine the crank to
accept the larger input shaft, or 2) machine the input shaft to
fit the early crank, or 3) on a 3-sycnhro box swap, the input
shaft for an earlier small input shaft. Take a look at Doug
Jackson's site for the speciific dimensions ....
http://www.mgbmga.com/tech/mga4.htm
Larry Unger
'61 MGA 1600 MKII
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