I just recieved a big box of four speed parts. 2 sets of gears, 2 forks, spacer kit. Now to put it together. I have a original reduction housing wich is 38% over and a 17,18,19,20 gear set. That works out to a 23,24,25,26 gear set. I will pull from 800lbs to 1150. I think 4 different weight classes. I also picked up a 1.200 stock body reworked kohler carb. Its getting closer.