Hello Pontiac Community! I have a 66 GTO and ordered a direct replacement axle shaft and found out that my rear end had most likely been replaced and the axle did not fit. I have a 10 bolt GM 8.2 inch BOP rear end that is a non C clip. It does have a torsion bar and I read that was not available until 1970. I'm trying to find out what rear end I have so that I can order a new axle shaft. Any help from the community is appreciated.
Casting numbers on the rear end are 9793235 with a 5 1 above it. I was unable to find any other markings on the axle housing as it's been heavily painted. Thank you for taking a look!
Reed
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