12 bolt troubles (spring perches) - Team Camaro Tech
Tech 2002 General Tech questions from 2002
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post #1 of 7 (permalink) Old Dec 30th, 02, 06:25 AM Thread Starter
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Jim
 
Join Date: Nov 2001
Location: Douglasville, Georgia. US
Posts: 700
My twelve bolt has unusual perches on it, they are semi circular on either end and about 5 inches long on the sides with what looks like mounting or line up holes approx the size of a quarter in the middle, for leaf springs. I saw a simular rear end on the Year One 69 pro touring car, can any one shead any light on this situation? Mono leaf/multi leaf etc?

Thanks
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post #2 of 7 (permalink) Old Dec 30th, 02, 07:46 AM
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do they look like this?

if so, that is what a "normal" spring perch looks like. GM was the only company to use any other style on passenger cars. it is pretty common for someone to put these on when swapping a rear from a different application- it's what i used to put an 8.5 that was from a 73 Nova with multi leafs into my 71 with monoleafs.

------------------
1971 Nova(looks like 69 camaro from underneath!)
355sb, vortec heads, HOT cam,T-10 tranny, 3.70 gears 16X8" IROC wheels. 12" Corvette brakes on the way.
see pics here http://community.webshots.com/user/novaderrik
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post #3 of 7 (permalink) Old Dec 30th, 02, 01:05 PM
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Stock GM pads look the the ones at the bottom of the page in this link: http://www.tomsdifferentials.com/cat111.htm

The pads shown above are actually Ford/DANA type.

Tom
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post #4 of 7 (permalink) Old Dec 30th, 02, 04:40 PM Thread Starter
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Jim
 
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Novaderrick

That is exactly the ones, but I do not see evidence of a perch being removed and the welds look "virgin". Thanks for the answer, are these correct for my application? or are they from another car like a Nova, etc.,

Jim
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post #5 of 7 (permalink) Old Dec 30th, 02, 10:42 PM
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they aren't "correct", but they are functional, and i prefer them. they leave all your options open as far as leaf spring thickness is concerned.

------------------
1971 Nova(looks like 69 camaro from underneath!)
355sb, vortec heads, HOT cam,T-10 tranny, 3.70 gears 16X8" IROC wheels. 12" Corvette brakes on the way.
see pics here http://community.webshots.com/user/novaderrik
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post #6 of 7 (permalink) Old Dec 31st, 02, 07:19 AM
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Aren't the perches in different locations between a Nova and a Camaro?

------------------
69 convertible
LT1 4L60E
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post #7 of 7 (permalink) Old Dec 31st, 02, 09:24 AM
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Yeah, they are impossible to collapse and I prefer them also.
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