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My son and I are in the process of swapping an M47 transmission out of our '92 245 parts car into a '90 244, previously equipped with an AW70 auto box. A related article in the 700/900 FAQ section indicates that there may be a flywheel issue:
"Bolt the new flywheel in place. This was my next big stumbling point. I had taken care to get a flywheel that had the perimeter holes next to the starter ring for the flywheel position sensor found on 1990 and later cars. What I didn’t know, and what the dealership didn’t seem to know either, was that there was more than one pattern of holes! I had bought a flywheel with 40 holes and two gaps, what I needed was a flywheel with 58 holes and one gap. Sadly, I only came to this conclusion AFTER I had the auto out, and was staring at the 58-hole driveplate. Needless to say, the car wouldn’t start."
My question is whether the flywheel from our '92 LH 3.1 car is compatible with the flywheel position sensor and ECU logic of the '90 LH 2.4 car.
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Mike W., '79 242GT (project car), '85 245DL (daily driver 1), '87 245 DL (daily driver 2), '90 244DL (project car), '91 744T (daily driver 3), '92 245DL (parts car), '94 944T (wifemobile), Largo, FL
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