In a message dated 97-08-13 16:18:21 EDT, 103171.565@CompuServe.COM (neil
gallagher) writes:
<< 've recently acquired a TR4 OD transmisison, which I'm intending to
install in
my TR3A. I've measured three times, and each time find that the distance
from
the rear mounting bolt holes to the front face of the bell housing in 1/2
inch
longer on the TR4 tranny than on the TR3. Can anyone verify this, and, if
I'm
correct, tell me the best way to install the TR4 gearbox? I hesitate to just
shove the engine forward, as it would seem to stretch the engine mounts.
Neil Gallagher >>
Neil
What a great find and addition to the TR3. you will be very pleased with the
results if you drive your car on the highway. It's a real kick to shift
through 7 gears forward !!
Your tape measure is accurate. The 1/2 inch is easy to make up at the rear
motor mount. There is a very short cross member which bolts to the frame
and to which the rear motor mount bolts in turn. If you take a rat tail file
and elongate these holes by about 1/4 inch on the frame cross piece and on
the rear motor mount to cross piece holes the tranny will slip in with no
problem. You take off so little metal on each that I cannot believe it
results in structural weakness at this point. There is plenty of metal left
on each piece. I have done this several times and have not had any problems
crop up over time.
Good luck, hope this helps.
Bob Paul
TS71101L
TS45738L O ( with a TR4 tranny and elongated rear mount holes)
TS7280L (With a TR4 OD tranny to be installed)
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