TR3 J Type Overdrive

["C. Svejda" <csvejda@lakefield.net>]

FOT,

My Dad has located a TR6 J Type overdrive transmission and would like to
install it in his non-overdrive, street driven 1958 TR3A.

Has anyone done this conversion?  What, if any, problems lie ahead for
us? Can we use a TR3 clutch & release bearing? Do we need to fabricate a
custom rear mount? Will the TR3 drive shaft be the correct length? What
type of oil should be used in a J type  overdrive?

Any advice is appreciated.

Thanks,
Charlie