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Registered
Join Date: Aug 2003
Location: RI
Posts: 901
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1st gear and main shaft 75-78
The 1st gear and main shaft for a 1975 915 seems to have a different part number (915.302.901.05) than a 1978 (915.302.921.04) (also .14). Both are the same ratio of 11:35.
Can the 1975 1st and main shaft be used in a 1978? I need to replace mine because 1st gear is very worn. Or if anyone has one for a 1978 I'd be interested. Thanks.
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Silver 1980SC Euro coupe |
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03-02-2009, 03:45 PM
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gearhead
Join Date: Nov 2007
Location: Loverland, CO
Posts: 23,540
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The early 915 mainshaft and 1st gear can be used, but the later one was redesigned a bit and is stronger and more durable. Find a late one if you can.
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1974 914 Bumble Bee 2009 Outback XT 2008 Cayman S shop test Mule 1996 WRX V-limited 450/1000 |
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03-02-2009, 03:55 PM
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Registered
Join Date: Aug 2003
Location: RI
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Ok then I'll keep looking.
anyone?
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Silver 1980SC Euro coupe Last edited by Ron.G; 03-02-2009 at 04:15 PM.. |
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03-02-2009, 04:04 PM
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Join Date: May 2008
Posts: 2,948
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The SC M/S is stronger, and the loose gear (gear w/synchro) uses the asymetrical dog teeth. You want to find a 1st/mainshaft from either a 915/61 (yours; 1977-79) or a 915/63 (1980-83). Even a 3.2 Carrera will work for you...
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Keep the Shiny Side UP! Pete Z. |
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03-02-2009, 04:35 PM
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