Might just double ck the width of your '66 rear. Not all '66 LeMans-GT0 rears were the 1" narrower variety like the '64, 65 & early 66 8.2's. In reviewing this whole post,the best bet is the complete 8.5 A-body rear swap. It's a bolt-in, but one will have to shorten the stock driveshaft 1".
Advantages of the 8.5 A-body:
- Overall strength... no small pinion bearings & flexing in the nose of the housing upon loading of high torque application. Unless one is lucky to have a rare nodular case 8.2, the 8.2 makes little sense for strong performance use.
-No sealed bearing axle bearings to seize & eat up axles, instead running taper bearing axle bearings, they'll run forever.
-much more affordable quality gears in wider range of sizes. Same with carriers, wide range of posi's & spools.
[This message was edited by ol' Pinion head on March 14, 2004 at 03:59 PM.]
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