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I tried a few and never found anything to fit the early cv I ended up cutting off a couple ribs of a honda civic boot to get to a smaller section seems to be wroking fine. I read years ago on MM about a quad boot that was perfect polaris sportsman 500 maybe can't remember for sure.
I actually prefer the replacement ujoint kits that eliminate the rubber7 Enterprises has those rubber joints in stock - their part number GCD0101 800-992-7007