Re: 12 bolt shoppers beware !!!!!!
 

Jeez, I've known guys to redrill 10 bolts to 12 bolts for YEARS! I actually did it the other way around in my 66 GTO.. 12 bolt with a 10 bolt cover...[actually kept the 12 bolt cover just filled the big whoop with bondo...and drilled new holes]

Re: 12 bolt shoppers beware !!!!!!
 

Pretty bad feedback on the seller.

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Re: 12 bolt shoppers beware !!!!!!
 

A fast https://www.yenko.net/ubbthreads/imag...ins/stupid.gif question if you please.

12-bolt rears actually refer the the number of bolts used to
affix the ring gear to the carrier - correct? Are the 10
bolt and 12 bolt housings the same size? Can a 12 bolt
carrier be installed in a 10 bolt rear? I wouldn't think
so. Can someone just clarify for me?

Jim, why would someone disguise a 12 bolt rear as a 10 bolt?
I'm lost on that one.....

Steve

Re: 12 bolt shoppers beware !!!!!!
 

[ QUOTE ]
Jim, why would someone disguise a 12 bolt rear as a 10 bolt?
I'm lost on that one.....

[/ QUOTE ]

Pontiac used 10-bolt rears. He probably wanted the stronger Chevy 12-bolt but wanted also to fool the under-car peekers.

Re: 12 bolt shoppers beware !!!!!!
 

You know, I don't want to bash the Pontiac's as I personally
like the 69 GTO &amp; 70-73 Formula's, but what gives with
Pontiac? Ram Air IV with a Rochester carb, 10-bolt rear?
Did Pontiac know something the rest of the car makers didn't
or did they not know as much? At least the RA4 got an
aluminum intake... https://www.yenko.net/ubbthreads/imag...ns/naughty.gif

Steve

Re: 12 bolt shoppers beware !!!!!!
 

[ QUOTE ]


Jim, why would someone disguise a 12 bolt rear as a 10 bolt?
I'm lost on that one.....

Steve

[/ QUOTE ]For the same reason I hade two sets of gaskets under the valve covers....[can anbody figure that one out?]

Of course TJ427 is right on the rear, but who can figure out the valve cover deal?....

[I'll be back with the answer right after a few words from our sponsors...] https://www.yenko.net/ubbthreads/imag...lins/laugh.gif

Re: 12 bolt shoppers beware !!!!!!
 

Roller rocker clearance ! https://www.yenko.net/ubbthreads/imag...ns/naughty.gif

Re: 12 bolt shoppers beware !!!!!!
 

[ QUOTE ]
Roller rocker clearance ! https://www.yenko.net/ubbthreads/imag...ns/naughty.gif

[/ QUOTE ]

Nope, try again...1966 GTO, why two gaskets under the valve covers gaskets...hint: what's he hiding?...anyone? anyone?...
http://www.classicperformance.com/eb...s/GTOVALVE.JPG

Re: 12 bolt shoppers beware !!!!!!
 

Stud girdles?

~ Pete

Re: 12 bolt shoppers beware !!!!!!
 

hmm...extra room in the valve covers??? are we smuglin drugs?...lol.. saw that on tv once.. guy had a car and was pullin in on a trailer... guts of theengine were cut out and it appeared to be a runing car... but the motor was full of heroin!