I have an old Schwinn Heavy-Duti that I would like to put the Centrifugal clutch kit on and need to know if anyone has done it. The kit with the wider clutch housing and required pull start seems very wide. The crank on my Schwinn which I pirated from an Electra to fit the original kit would not be wide enough to fit the pull start and clutch housing. All of the cruiser type bikes seem to have narrow curved cranks as opposed to the mountain bikes which have wide cranks with 90 degree angles. Are the mountain bike cranks interchangeable with our cruiser cranks? If anyone has done this would you please let me know what type of crank was used in the project. I am on the third clutch lever housing because the pin inside falls out and the lever shaft pops out the top from vibrations. I'm tired of the lever crank. Thnx!