> From: Scott.Mackay@intl.sematech.org
> Sent: Wednesday, March 10, 1999 7:49 AM
>
> If your looking for more calibration numbers, I have a few.
> 1120 turns/mile came out of a '74 '6 (3.7 diff) with OD. I
> think it is original. 1000 turns/mile can out of a '76 '6
> (3.7 diff), no OD, defiantly NOT original. In fact, I cannot
> come up with a car this would have come out of.
Scott, my 76 has the 1000 speedo and it is original. I also have OD
(factory). My diff is CD 87870 and I believe that to be a 3.70.
On a TR6 the J-type OD makes no difference (as far as the speedo) because
the speedo pickup is taken off the output shaft _after_ the OD. Casual
observation has indicated that 75's had the 1120.
FWIW, my speedo indicates the correct speed. And I have Michelin redlines in
the stock size.
Peter Zaborski CF58310UO
|