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Join Date: Aug 2010
Posts: 4,682
where can I look up this tranny?

Is this gearbox a 7:31 R&P? And where can I look these up myself? Buy a book or on line somewhere? 7344946

Old 10-30-2014, 06:31 AM
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gearhead
 
Join Date: Nov 2007
Location: Loverland, CO
Posts: 23,539
Is the type number worn off?
I'll look it up for you when I get to my office.
Old 10-30-2014, 06:50 AM
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Probably worn. Lmk what u find
Old 10-30-2014, 08:09 AM
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Join Date: Jan 2008
Location: Granite Bay, Ca
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Garage
So glad this wasn't a picture of Ru-Paul.
Old 10-30-2014, 08:26 AM
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gearhead
 
Join Date: Nov 2007
Location: Loverland, CO
Posts: 23,539
Here's a website you can use to decode 915 gearboxes. Otherwise the best resource is a spec book. They are sold in ebay and all over the place.
915 Series Porsche Transmission


Decoded:
7 - 6 cylinder engine
3 - model, all US 911, 911s and Carrera were the same
4- year, 1974
#- sequential serial number.

So yes, 7:31 r/p. If you are considering buying it, make the seller remove the sidecover and provide conditions of it. California Motorsports just started a new 915 based FB page and interestingly enough, they posted a picture of a bad 7;31 just this morning.
https://www.facebook.com/#!/pages/Porsche-915-transmission/1543604629208055?fref=nf

Regards,

Matt
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1974 914 Bumble Bee
2009 Outback XT
2008 Cayman S shop test Mule
1996 WRX V-limited 450/1000
Old 10-30-2014, 08:52 AM
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Matt. Thx immensely. This is the trans numbers for the twin of the one I posted about. M on running one. Were all 74 911 cars 7:31?
Old 10-30-2014, 10:06 AM
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gearhead
 
Join Date: Nov 2007
Location: Loverland, CO
Posts: 23,539
yes.

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1974 914 Bumble Bee
2009 Outback XT
2008 Cayman S shop test Mule
1996 WRX V-limited 450/1000
Old 10-30-2014, 10:44 AM
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