Redfever
Guest
The springs on the slip clutch need shims under them to tighten the springs. It doesn't take much to keep it from slipping so don't over do the shimming. I believe the spacers inside the springs have a 3_4 " hole. If you use washers with this size hole they might be too thick and you might have the springs set too tight and you will have a much bigger problem to deal with then like a twisted or broken shaft. Best bet is to get shims that aren't too thick. Hope this helps.