Use on all models between the cover plate and spring to pre-load the spring for greater initial tension, raising the engagement rpm approximately 200. Up to three may be used, except where bottoming out of the spring will occur.. Includes three washers 1 5/8n. i.d. x 2 3/8in. o.d. x 1/16in. thick.

Use on all models between the cover plate and spring to pre-load the spring for greater initial tension, raising the engagement rpm approximately 200 Up to three may be used, except where bottoming out of the spring will occur. Includes three washers 1 5/8n. I.D. x 2 3/8in. O.D. x 1/16in. thick