In a message dated 3/4/99 9:20:40 AM Eastern Standard Time,
acrane@crosslink.net writes:
<< According to my original sales brochure for the 67 TR4A, the standard
rear end was 3.7, but 4.1 was an option with OD. So your 4.28 probably
is not factory original. However, I recollect that alternative gearing
was available from the aftermarket and was relatively easy to install in
the standard differential. The Triumph Competition Manual may talk
about that. >>
According to the Glenn Mitchell Collision Estimator guide, under "competition
items", the 4.3 rear was available for a suggested retail of $47.75, the 4.5
was $58.15 and if you really wanted to shoot the works you could get a "no
spin differential" for only $116.50. Unfortunately it doesn't seem to be
dated, but since it lists the TR250 and not the TR6, I presume it's about 1968
or so...
Don Marshall
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