Quote:

The square thrust block pictured is factory original and correct for pre-'64 rear ends.

Prior to '64 the center thrust block width was different for Sure-Grip and non Sure-Grip differentials; the square thrust block was about 1/4" thinner than the Sure-Grip buttons and needed a longer axle. Starting in '64 they decided to make the axles the same length and introduced the wider round thrust block for the non Sure-Grip units.



Thanks for the info! I swear whatever the question there's always someone on this board who knows the answer..

So I guess I now have to find someone who wants a pre 64 center section with a open diff and 2.76 gears.. something tells me the scrapyard may be the only one who is going to want that.. :P

-Jon

70 challenger convertible. 340/5 speed. blown, intercooled, efi, blah blah blah 71 valiant scamp 318/A833OD/AC/PS 00 dakota RC 4.7L 5 spd autoX'r. SRT10/T56 swap in process 73 W200 Power wagon, PTO winch, 4 spd