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Registered
Join Date: Nov 2007
Location: Calgary, AB
Posts: 276
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Trans mount bolts size.
I was wondering if anyone could tell me what size of bolt to use on the trans mounts for a 71 911? It has a 915...
Thanks!! 
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'71 911E Targa |
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06-09-2008, 01:24 PM
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AutoBahned
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special magic bolts ONLY!
Pelican sells them |
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06-09-2008, 02:09 PM
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azporsche911.com
Join Date: Nov 2005
Location: Goodyear, Arizona
Posts: 284
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i believe it is M12x1.25? or its 1.50?? I cant remember but beware that one missing bolt, it usually means the bolt hole threads have been stripped out.
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Jeff Hoffman (Son) Tom Hoffman (Father) 79 911sc ROW guards red coupe father son project. |
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06-09-2008, 02:51 PM
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AutoBahned
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he needs the special pointed bolts - the threads in the body of the car will surely be screwed up otherwise...
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06-09-2008, 03:34 PM
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Registered
Join Date: Nov 2007
Location: Calgary, AB
Posts: 276
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I will order them for PP.
Thanks!! Brent
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'71 911E Targa |
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06-09-2008, 05:26 PM
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AutoBahned
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sure Brent - or you might try the used parts houses...
DART, EASY, Okla Foreign, Parts Heaven - search on those to get addresses, comments, phone #'s etc. those bolts are not cheap |
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06-09-2008, 07:33 PM
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Registered
Join Date: Jun 2004
Location: Rio Rancho, New Mexico
Posts: 1,325
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I just replaced both bolts on my '76. I got the standard length and also got 5mm longer.
I ended up using the longer bolts. I wanted to be in fresh unused threads. Take a bolt with you to the store to double check the size and more importantly the pitch. It is not a common bolt pitch. I do not recall the size or pitch. Only one fastener store in town had the correct pitch. Most had the diameter and length, but not the pitch. I paid around $10 for 4 bolts. Retail was higher. Carefully check the thread pitch. There were plenty of bolts that were close to the pitch. I went to several stores before I found the correct pitch. I had the correct tap, I used it to clean the threads before assembly. I loosened the nuts holding the mount to the transaxle, allowing the mount to line up correctly. Start the large bolts carefully by hand to avoid crossthreading. Tighten everything up and you are good to go. You may want to test run the bolts before lining up the mount. If you mess up the threads you are looking at heli coils.
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DOUG '76 911S 2.7, webers, solex cams, JE pistons, '74 exhaust, 23 & 28 torsion bars, 930 calipers & rotors, Hoosiers on 8's & 9's. '85 911 Carrera, stock, just painted, Orient Red |
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06-09-2008, 08:55 PM
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