I'm running a 38zx Donzi with 600+hp per side and I have standard Bravo 1's. What options do I have for upgrading the drives. Can I replace the shafts and gears with XR components, or is it more involved. The drives only have about 20hrs on them.

Thanks
Corey

Install Maxx Machine tower, Merc XR gears w/ Maxx bearings and Maxx billet cap. Great stuff.

I twisted a prop shaft with 525sc's/Bravos. Upgraded prop shafts to xr's. Probablly end up doing the uppers next year.