[Fot] TR4-6 trans into TR3

[Randall]

> And why is a more fragile gearbox considered an upgrade?

In my case, it was because the flimsy early bellhousing broke, and the later
ones are considerably beefier.  Thicker flange, plus more reinforcing ribs.
Same casting used behind the Stag V8 (although there were some internal
differences).

IMO, many of the problems reported against the later gearboxes come down to
improper installation.  Both of my Stags came to me missing the important
(IMO) dowel-bolts that locate the gearbox to the engine; and conversations
with TR6 owners seem to indicate that few recognize the importance of the
dowels.  Rimmer Bros even sells ordinary bolts (with the customary undersize
shanks) as substitutes.  The resulting misalignment between gearbox and
engine overloads the bearing and leads to early failure.

At any rate, I've driven my TR6 quite hard (including 1st in class at a VTR
autoX) and it's shown no signs of distress.

Randall