I didn't touch my driveshafts or diffs, and have to say the diffs are also set well at the factory, they seem to be the right tightness as preset. However having not touched them, the rear one is getting grindy quickly, so for people comfortable with building diffs well I'd agree and sugest rebuilding them with good grease.
I used Tamiya Ceramic Grease on the gears, and actually set them to the looser position with the shims. For some reason I view them like belts and am happy to change them periodically, so I set them loose and err on the side of them chewing up rather than running tight!!
My only actual negative on it is the motor mount, it may just be me but I find it a nightmare tog et the damn motor pinion mesh right!!
Does anyone else really like the rod ends by the way, they are so much easier to put on straight than other cars I've used (eg threading onto the turnbuckle)??
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