Quote:
Originally Posted by jim76
God knows how you've broken the alloy mounts, unless you got very poor quality ones.
And you don't want to shim the diff TOO tight. no extra spacers are required, just move a thick shim over to the outside. I run a 4.5 sintered brushless and have no problems at all with gears.
Don't grease the gears either, just put them in dry, they just grind off a little powder instead of a thick grinding paste with lube.
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Believe the shock mounts were KMC, they were the split style from DC Racing. The first were replaced FOC, second waiting for updated version.
The quality of the alloy was very poor indeed, broke after a big jump/drop which the car rolled end over end. Funnily ennough the replaced std ones seem less vunerable.
As for my rear diff it does need the extra shims. The front is built as per kit and have had no problems. The rear with kit shims only rips itself to shreds, had a couple of long time off roaders with experience of shaft drive set the shims for me only to go in the next heat!!!!!!!. And yes we tried moving the kit shims in just about every configuration you can - since we added the extra shims I have had virtually no problems, have never used grease for the reasons you mention. also have small shims between the diff casings so the bearings are not nipped when tightening (an old trick from the days of the Yokomo YR4 series of touring cars).
The Lazer with these settings performs very well - as good as cars costing double.
Don't get me wrong I feel the car is excellent, I just found I needed the extra shims to make the transmission almost bulletproof
