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E21 (1975 - 1983)

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Old 07-16-2012, 10:35 PM
bosnianwog bosnianwog is offline
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Location: Australia
Join Date: Jun 2010
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Mein Auto: 528i, 328is, 323i
323i Transmission

Hey i was wondering would i be able to swap the gearbox with one from a e30 325i? Without many modifications basisally just bolt on
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Old 08-01-2012, 10:25 PM
Xerxes Xerxes is offline
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Location: Tacoma Wa
Join Date: Nov 2010
Posts: 24
Mein Auto: 81 323i and 93 525i
The transmission bolts right up, the problem is the e-30 had an electronic speedometer that reads off the rear differential, so the e-30 transmission doesn't have the speedometer cable drive off the side of the transmission. And you can't just drop in an e-30 differential and speedometer because the subframe is different (the e-21 diff sits on top while the e-30 bolts to the bottom). You might be able to get the transmission modified but I don't know, I'm doing an m50 engine swap and I'm putting in the e-36 transmission but I'm also swapping the electrical system and making the car 5 lug as well as changing out the rear subframe and suspension, I'll let you know how it goes in a year or two (I have to build a garage first).
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