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Please help me id this rear end

3292 Views 10 Replies 6 Participants Last post by  big gear head
First, the car is a 72 El Camino. It was originally a SS 350 4spd if that matters. When I purchased it a few years ago, I was told it had a Pontiac 12 bolt 3.42 gear in it. That's about as much as I know aside from the following pictures.

It appears to have a C-Clip eliminator kit installed. Possibly bigger axles.
To keep you from having to count I believe they are 31 spline. 1.2326" diameter.

Years ago I bought a disk brake kit and I'm trying to install it. I believe the C-Clip eliminator kit is messing me up. That's another story, I'm just trying to confirm the ID of the rear end and modifications so I can figure out the next step in the rebuild.

I'm not sure if there are other numbers or information you need. Please let me know.

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"O" 12 bolt from a olds a-body not as strong as a chevy 12 bolt but stronger than a 8.2" 10 bolt. I think some of them got 31 splines axles instead of 28 splines.

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