jibbajabba Posted August 21, 2022 Share Posted August 21, 2022 Will the 4 speed clutch and flywheel work with the e21 5 speed box? Which clutch slave is required? Thanks. Quote Link to comment Share on other sites More sharing options...
Solution Son of Marty Posted August 21, 2022 Solution Share Posted August 21, 2022 (edited) Clutch and flywheel will work you'll need the e21 slave clutch arm and throw out bearing. Edited August 21, 2022 by Son of Marty Quote Link to comment Share on other sites More sharing options...
jibbajabba Posted August 21, 2022 Author Share Posted August 21, 2022 4 minutes ago, Son of Marty said: Clutch and flywheel will work you'll need the e21 slave clutch arm and throw out bearing. Thank you. Quote Link to comment Share on other sites More sharing options...
Son of Marty Posted August 21, 2022 Share Posted August 21, 2022 (edited) The throw out bearing you'll need depends on the diameter of the clutch either 215 or228 mm, if you get your parts from a well known 2002 part vendor they'll fix you up with the right one. You'll also need a longer clutch master to slave hose. Note the e21 slave cylinder contrary to any known logic mounts with the bleeder facing down. Edited August 21, 2022 by Son of Marty 3 Quote Link to comment Share on other sites More sharing options...
jimk Posted August 21, 2022 Share Posted August 21, 2022 A transmission read by experts. Bimmers Trans Upgrades.PDF 1 Quote Link to comment Share on other sites More sharing options...
tech71 Posted August 21, 2022 Share Posted August 21, 2022 (edited) Thats a great resource but it should be noted that the game has changed somewhat since it was published 19 years ago. For example: the 4 bolt output flange that is recommended to simplify the driveshaft mod is pretty much unobtanium now. Another thing that is fast becoming unobtanium, is an actual, fully functioning ready to install Getrag 245 5 speed transmission. Most of the units being offered are defective in some way or another and internal parts to repair are also unobtanium. Unfortunately the 245 gearbox is heading for extinction. Lots and lots of threads here on the FAQ regarding 245 scarcity and issues. good luck! Edited August 21, 2022 by tech71 Quote Link to comment Share on other sites More sharing options...
jimk Posted August 21, 2022 Share Posted August 21, 2022 2 hours ago, tech71 said: Lots and lots of info here on the FAQ, good luck! Good luck at finding it all in one place in a logical order without a bunch of unrelated text interspersed. Quote Link to comment Share on other sites More sharing options...
tech71 Posted August 21, 2022 Share Posted August 21, 2022 (edited) 39 minutes ago, jimk said: Good luck at finding it all in one place in a logical order without a bunch of unrelated text interspersed. 3 hours ago, tech71 said: Lots and lots of threads here on the FAQ regarding 245 scarcity and issues. good luck! Fixed Edited August 21, 2022 by tech71 Quote Link to comment Share on other sites More sharing options...
TobyB Posted August 23, 2022 Share Posted August 23, 2022 Remove 4- speed. Bash tunnel where the clutch secondary cylinder goes. Install 5 speed. Measure driveshaft, and have front section shortened by that amount. Measure shift linkage and shorten that, too. Make something to hold up the back of the 5 speed. DON'T make it super- butch. Bolt together. Reroute speedo cable so it reaches. Likewise, the back- up lights. Fuss with alignment until it mostly doesn't hit the tunnel. Drive. Repeat the fussing. There, all done. t 4 1 Quote Link to comment Share on other sites More sharing options...
halboyles Posted August 23, 2022 Share Posted August 23, 2022 Some where in there you should probably hook up the clutch slave to the master and bleed. Otherwise you'll be doing a heel and toe dance to synch the shifting! Quote Link to comment Share on other sites More sharing options...
tech71 Posted August 23, 2022 Share Posted August 23, 2022 1 hour ago, TobyB said: Locate 5 speed that is not crap. Remove 4- speed. Bash tunnel where the clutch secondary cylinder goes. Install 5 speed. Measure driveshaft, and have front section shortened by that amount. Measure shift linkage and shorten that, too. Make something to hold up the back of the 5 speed. DON'T make it super- butch. Bolt together. Reroute speedo cable so it reaches. Likewise, the back- up lights. Fuss with alignment until it mostly doesn't hit the tunnel. Drive. Repeat the fussing. There, all done. t Edit Quote Link to comment Share on other sites More sharing options...
JWT Posted August 24, 2022 Share Posted August 24, 2022 Make sure the 5 speed is "rebuilt". ? 1 Quote Link to comment Share on other sites More sharing options...
TobyB Posted August 24, 2022 Share Posted August 24, 2022 0 pick up a wrecked E21 for $300... heh. That used to be the easy part... t clutchless. 1 Quote Link to comment Share on other sites More sharing options...
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