8 1/4 how to eliminate the c clips?

To use Green Bearings you would have to cut the ends off the axle and weld on 8.75 ends and then have custom axles machined to accept the bearings.

Why the interest in elminating the C-Clips? If you are making enough power to break after market axles then you should be looking at a more stout rear end. Lots of folks run 8.25's in cars that run deep into the 12's for years without axle failures.