I'm upgrading my sons Senton Mega 550 to 3S configuration. Part of that is switching out the diffs and pinion gears to the 3S versions. When I reassemble the diffs and pinions in the housing they aren't smooth, almost like they are catching on the housing. If I loosen the housing screws some they smooth out (Going from hand tight to a few turns loose). Is this OK? Any thoughts on what could be causing it? I did try shifting the side of the bearing the factory shim was on and removing the shim but that did not seem to change anything.
Second question, any advantage to upgrading to the aluminum diff holders?
Thanks
Second question, any advantage to upgrading to the aluminum diff holders?
Thanks