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Good afternoon. I have a 1970 GTO Judge. I’m trying to decode my transmission, the bell housing and rear. Wanted to know if I have the correct parts for numbers matching. The transmission is P9R21A. The number on the bell housing is GM3846429 and the rear casting number is 9799202 on the pumpkin. Can’t really find any materials that explains these specific numbers. Any help would be appreciated. THANKS
 

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I’m pretty sure if you use a mirror and a flashlight you can find your vin number stamped on top of the tranny . It’s stamped on a flat pad . It’ll take you some time to find it but it’s there . I think passenger side but I could be wrong
 

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Did they put a 10 bolt rear in a judge? I purchased a rear end out of one in the early 80's and its a 12 bolt 342 posi.
 

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ohhhhhhhh yah they did

pontiac 12 bolts were behind 455's in 70 gto's

and

I dont think 70 judges had 455's

I think u got some bad info
 
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