What years were the round large disc used? Also, i have one set of flat sided disc that has one inner disc that is about .125 thick. anyone know why such a thick disc? Thanks, Bob
The thick,your 0.125 disc was used prior to the three thin washers in the tranny.
Bob,the transmission manual goes into explaining all this very well and for $10 ,it is a steal.
The thick disc was used as a spacer to place the remaining discs away from the disc drum. In post 16 transmissions, there were bosses cast into the brake drum that performed the same function.