Thread: Overdrive units
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Old Jul 7th, 2010, 11:50   #4
Derek UK
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Last Online: Jun 15th, 2024 11:39
Join Date: Jul 2006
Location: Chatham
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As Dai says there is quite a bit of mix and matching that has to be done. You already have a car with OD so you can check and compare with that. Late B20 Amazons never came with OD as standard. They also have a cable clutch which complicates things. J type OD came in with the B20 but although the box is still an M41 the OD's don't interchange. I'm sure somebody might query that but there are some differences. You mostly buy the box/OD as a pair so best to keep them that way. If you use a hydraulic clutch/bell housing the later ones bolt in. Sorting out the shorter front prop and matching flanges usually the the only problem.
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