Get one of the above referenced GM rope seals. The Best seal that is currently sold is the best seal currently sold, lol. It is not however, at least in my view, the best seal to use. The original seals contained an asbestos component to them. The current Best seal is a graphite fiberglass deal. The older seals seem to work better at maintaining their shape around the crank and thus the seal then do the newer rope seals so you would want to try to find a GM or felpro (has to be one from at least the 70s and earlier, before the asbestos was removed).
Last edited by Dragsix; 04/05/2018 9:18 PM.
