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 - Tractor Profile: Allis-Chalmers Model G - by Staff. The first Allis-Chalmers Model G was produced in 1948 in Gasden, Alabama, and was designed for vegetable gardeners, small farms and landscape businesses. It is a small compact tractor that came with a complete line of implements especially tailored for its unique design. It featured a rear-mounted Continental N62 four-cylinder engine with a 2-3/8 x 3-1/2 inch bore and stroke. The rear-mounted engine provided traction for the rear wheels while at the same time gave the tractor operator a gre
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