Originally posted by e46IX
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S6-37 6mt swap info (broken off from junk yard thread)
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Originally posted by BMWE46M3 View Post
Did you ever make the tranny swap? Any reviews/insight you can provide would be appreciated. Thanks...
I have since acquired a few more transmissions. One of them is from a Z4M, one from an E60 530i, and the other 2 from E46 330's.
Apparently the Z4M input shaft is a bit longer than the 330 variant, I'll get em all side by side and carefully inspect the differences. From the outside they look identical, also the Z4M uses the same flywheel as the E46 M3, but has a unique clutch setup.
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The transmission tunnel and transmission placement is exactly the same on all US RWD E46s.
Other than the driveshaft this will bolt in exactly like it would to its native engine.
IE to put the E46 GS6-37 trans in from a 330 you would use the 330 clutch, flywheel, TOB, Ford, shifter assembly and crossmember. I don't know how the driveshafts compare but I would imagine you would need either the 330/6MT driveshaft or a custom one. Hydraulics are all the same so you don't have to make any changes there.
'00 R11S, '09 HP2S, '12 R12GSA, '00 Gray 332iT (SOLD), '00 Black 323iT, '02 Alpine 325iT (Track Wagon), '02 Japan Rot 325iT
Instagram @HillPerformanceBimmers
Email to George@HillPerformance.com
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Originally posted by George Hill View PostThe transmission tunnel and transmission placement is exactly the same on all US RWD E46s.
Other than the driveshaft this will bolt in exactly like it would to its native engine.
IE to put the E46 GS6-37 trans in from a 330 you would use the 330 clutch, flywheel, TOB, Ford, shifter assembly and crossmember. I don't know how the driveshafts compare but I would imagine you would need either the 330/6MT driveshaft or a custom one. Hydraulics are all the same so you don't have to make any changes there.Instagram: @logicalconclusion
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Originally posted by EthanolTurbo View Post
I thought the 330i driveshaft is the same as an E46 M3 driveshaft?
I'll dig out some driveshafts later and take a pic comparing them.'00 R11S, '09 HP2S, '12 R12GSA, '00 Gray 332iT (SOLD), '00 Black 323iT, '02 Alpine 325iT (Track Wagon), '02 Japan Rot 325iT
Instagram @HillPerformanceBimmers
Email to George@HillPerformance.com
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Originally posted by D-O View PostHow big an improvement is the GS6-37? The standard E46 M3 gearbox is really the only thing I don't care for about the car.
A reman GS6-37 used to be about $3k which I think makes more sense than swapping in a used gearbox. Nowadays...not sure where prices are. I know the 420g has doubled over the past 8 years.
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Originally posted by bigjae46 View Post
I had to replace the GS6-37 because of an engine failure taking out the bellhousing, it was excellent! It was also a BMW reman. Hard to say how a used gearbox will shift.
A reman GS6-37 used to be about $3k which I think makes more sense than swapping in a used gearbox. Nowadays...not sure where prices are. I know the 420g has doubled over the past 8 years.
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