Quote:
Originally Posted by Schurkey
'75 Monte Carlo 10-bolt axle showing A-body control arm and shock mountings.
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I think OPH nailed it. ‘73-‘77 A-body.
Looking at your photos Schurkey, and the ‘75 cutlass photo below, I can see how that bracket has been cut apart to separate the control arm and the shock mounting, and then welded back together on this differential to earlier 68-72 layout.
I’ll have to check the overall width again to get a more accurate measurement, but it’s about 55” to the inside of the axle flange (this diff has been converted to rear disc, so no drums to check overall width). And it’s about 7.5” between the insides of the mounted upper control arms (I don’t have another 68-72 A-body diff to compare this against so don’t know if this is a lot wider).