1980 4spd will be the SM465. The adapter will have mounting surfaces that both resemble a figure 8. Round style mounting adapters didn't start till they switched from 10 spline output to 32 spline output and went to the aluminum 208 T-case in 1982. Those 10 spline units used a sleeve to connect the transmission output to the transfer case input. The splines were notorious for wearing so bad lots of them stripped completely out. The sleeves are rather cheap. Be sure to put a new sleeve in if you have more than a tiny amount of slop in the splines.
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Today's Featured Article - Women and Tractors - More Views From the Farmer's Wife - by Teri Burkholder. The top ten reasons why the judges wouldn't let you participate in the stock antique tractor pull: Hey, this is stock! It came with that V8 in it! That "R" on my tires stands for "really old" not radial! Blue gas? We thought it was a pretty color! What wire hooked to my throttle?
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