Why do you have to rebuild every year, are these things that fragile? What power are you putting through it?
Might want to give Kevin McMullen a call before spending that kind of money.
They are good for about 800 HP/TQ at the crank in a typical sand car. Any more than that and they start wearing out gears (as in this case) or breaking 3rd gear. The gears in the H-pattern units are narrower than the sequential.
After seeing the abuse an S4D will take, I don't know why someone would spend double the money for an Albins unless its purely due to space/size constraints. My boss has been very unkind to his S4d for a decade now, and he's spent less $ fixing it than the repair invoice posted above over that time period. Poor thing has been putting up with hill assaults at Olds with 35.5's and a healthy whipple'd 440. Never broken a single part, only replaced a couple gears & bearings because they were in there and some parts were starting to show wear. I'm quite positive he still has the original R&P in it from when it was built.
