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<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: A12pilot</div><div class="ubbcode-body">603109-2....70-72 and up B-Body, 3.54 Powerlock. The dash number for an A12 car would have been -3 or -5, not the -2, for the 4.10 gears. Built too late to be an A12 rear, anyway. An A12 rear would have been around February or April, plus or minus a bit based on build date of the car. That's just a rough estimate, but the date on your rear is too late, and A12s only came with 4.10 gears as well. Hope that helps! [img]<<GRAEMLIN_URL>>/biggthumpup.gif[/img] </div></div>

Right you are, the A12 were batch cars....forgot about that. Isn't the '71-'72 fuselage body B-bodies fitted with a wider Dana than the '70 b-body though - by a couple inches?