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Join Date: Nov 2006
Posts: 97
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A Calipers or S ?
How do I tell if I have A or S Calipers for my 1977 911S. Or Am I a dumbass...........
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1977 911S Targa |
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01-13-2008, 06:41 PM
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Join Date: Nov 2004
Location: Lakewood, Ca.
Posts: 839
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Quote:
The quickest way is to measure the bolt spacing on the caliper to the strut. 3.5" = s caliper 3" = A caliper |
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01-13-2008, 06:45 PM
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Thank-you Larry
Marti
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1977 911S Targa |
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01-13-2008, 06:51 PM
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Information Junky
Join Date: Mar 2001
Location: an island, upper left coast, USA
Posts: 73,167
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wouldn't a magnet be quicker? (cast iron magnetic, alum "s caliper" not)
...don'tthe A & S have the same spacing too?
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Everyone you meet knows something you don't. - - - and a whole bunch of crap that is wrong. Disclaimer: the above was 2¢ worth. More information is available as my professional opinion, which is provided for an exorbitant fee. 
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01-13-2008, 06:55 PM
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Quote:
A lot of S calipers have been swapped over for SC calipers over the years so if they were stock sure. However, measuring is a sure fire way to tell. |
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01-13-2008, 06:55 PM
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Location: Lakewood, Ca.
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OOPs IC why you pointed out my mistake. I was thinking M vs S for the 77 A is actually the SC caliper.
So magnet is the quickest way to tell A vs S. and center to center bolt spacing for M vs S (and magnet) |
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01-13-2008, 06:59 PM
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Magnetic Cast Iron A ,
Thank you Marti
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1977 911S Targa |
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01-13-2008, 07:18 PM
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