Hey Guys, I pulled the rearend out of this 69 GTO racecar that I picked up out of Caldwell, Idaho last year, and Im just trying to figure out what it is other than a 10 bolt. It has P145M written on the rearend cover, and it may not mean anything, but I just wondered what you all thought? JB PS. Hey guys I just tried looking for an old article in High Performance Pontiac about rear end identification, but cant find anything?? Can anyone suggest a good article for me?? Thanks again all!! JB
JB,there's been seveeral topics in this forum on Id'ing rear ends.. Just do a search for rear end from the link next to "active posts" above. here's one of them;http://forums.highperformancepontiac.com/70/8539788/drivetrain-upgrade/rear-end-guidance/
Here's a chart for 69 GTO .
I learned I have an olds posi unit. If you cant find marking in the usual pontiac locations, take a look at where olds would stamp there markings. Thats how I figured mine out.