Attn Cat guys I have a 1968 Panther 399 with side exit pipes on er' and when I pulled it out from it's almost for certain resting place the drivers blew clean off the drive axle. If anyone could let me know what other drivers may fit this machine I would appreciate it. My buddy has a 72' 340 Puma and he is hoping to build one out of two and have a bad ice fishing unit.