Originally Posted by JayBee
For VTA/Scale Spec, what's the biggest spur I can fit in this thing without MAJOR mods?
Biggest spur or biggest pinion ? I thought VTA was crazy low FDRs...
Anyway the biggest SPUR I've been able to fit in my TC3 before it protruded from under the chassis is 81T 48dp (= 108T 64dp). All that was required was dremelling the chassis webbing . Actually I remember trying a 84T RW spur but this would be veeeery slightly beyond flush (a tenth of a mil, really) so I went back to the 81. No reason not to assume 83T (or 110T with 64dp) would be fine. HTH.