Originally posted by TRAJ
What would be better to use??
The MTX3 rear uprights or the RRR rear uprights?
I want to upgrade to one of those but i just want to know which is best.
I have heard that you might need to change a few more things with the MTX3 uprights, is this true? If so what would be needed?
any help would be greatly appreciated 
For Mugen conversion - You will need to have the mugen rear uprights, pillow balls and bearings.
RRR conversion - just the rear uprights and short axles (same one as the front).