I put a 6-speed and Quaife LSD in my
2003 R50 about 7 years ago when my
Midlands gave up the ghost. Lost the
car 2 years ago to an accident but i
loved it while I had it. Both the Getrag
5-speed and the Getrag 6-speed require
the same plethora of other required
additional parts to do the swap, so the
cost difference is just the difference
between the two transmissions, and
although th 5-speed is perfectly adequate
for the R50 (unlike the Midlands), the
6-speed is much more robustly built.
I used the Valeo clutch and flywheel kit
which is a good bit less expensive than
the oem dual mass flywheel and clutch,
and a pound or twolighter as well.
The 6-speed flywheel is about 50% heavier
than the 5-speed, but that does make it super
easy to launch. I would get the later 6-speed
(2004-5) as it has quicker gears ratios
compared to the older ones and that works
better with the lower powered R50.
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