Hello,
I bought 1972 Arctic Cat climber minibike with a 3 inch clutch and it has 3/4th inch PTO on the engine. The clutch was clanking pretty badly and the guy gave me a replacement clutch which he bought and never installed however it was for a 35 chain rather than the 41 chain which is on the bike. The rear sprocket is on the same side of the bike as the engine PTO and would a TAV fit into the space on the bike's frame? Here are some pictures. I could not find any measurements of the backing plate size. It appears to have about 8 inches of space from the center of the PTO to the edge of the frame in front of the rear swingarm. Here are some pictures.
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