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 - Diagnosing Engine Difficulty - Diesel Tractors - by Staff. The following suggestions are listed for your assistance. You can make simple adjustments on your tractor that will improve its operation and save you the time and expense of hiring someone to do it for you. Always make one adjustment at a time, and if the adjustment made does not improve the condition, return to the original setting before proceeding to the next adjustment. Hard Starting Cold air temperatures. Insufficient fuel.
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