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DannyBNH's Avatar
 
Join Date: Oct 2007
Location: Rye, New Hampshire
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Better to replace or rebuild my 915?

My 79 SC isn't quite stock.. It's got a 77 915 tranny with an 87 3.2. The transmission is starting to getting a little termpermental in a few gears and it probably would be a good winter project to rebuild it... Luckily I know some people with the expertise who've done it quite a few times that I could call on.

I've seen on the classifieds board some 915's for between $1000 - $1500 that have been fixed where needed and am wondering is it better to

a) Just pull out my 915 and fix all the syncro's & whatever else it might need?
or
b) Buy a more up to date 915 that's been rebuilt?


Are there any advantages doing one or the other?

Thanks
Dan

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Old 12-01-2009, 08:38 AM
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Your 915 will already have the bell housing modifications for the 3.2 flywheel sensors so if you trade out you will need to get a 3.2 915, one already modified for a 3.2, or modify the new unit. OTOH, rebuilding your 915 is a great educational project and leaves you with a unit that you know what is inside.
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Old 12-01-2009, 08:46 AM
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Here's a start: http://porsche.wikidot.com/forum:start Click on "915."


It's always a good idea to start with a "known" entity. To buy a "Repaired/rebuilt" 915, for $1500, can be a costly mistake. After you do some reading you'll have a better idea what to do.

http://forums.rennlist.com/rennforums/911-forum/397133-it-cost-how-much.html?highlight=Cost+MUCH%3F
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Last edited by Peter Zimmermann; 12-01-2009 at 09:05 AM..
Old 12-01-2009, 08:59 AM
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who knows what was done on an unknown "rebuild/repair". plug it in and find out? you're better off doing yours.
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Old 12-01-2009, 09:06 AM
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Quote:
Originally Posted by john walker's workshop View Post
who knows what was done on an unknown "rebuild/repair". plug it in and find out? you're better off doing yours.
+1.

Best,

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Old 12-01-2009, 02:44 PM
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