Metal or Plastic center diff spur gear?

[lucias]

I am thinking about trying one of wide metal ones for my 8ight-T.. I am using motor brakes and was racing this weekend when stripped a plastic one.. I am running a 1515 2.5 on 5S, The first couple of races it was stupid fast then I turned it down a little to make actually drivable so that may have helped in stripping it..

With the hardened pinions there is no reason at all too run the plastic gear. The bearing fits sloppy on the plastic gear. The o ring area on the inside deforms and the gear would always loosen up enough to sling out the diff fluid. Small pieces of dirt and rock would embed them self into the plastic and make intermittent noises. Since I went to the steel gear I have had zero problems.

[jhautz]

Originally Posted by Cowboy

With the hardened pinions there is no reason at all too run the plastic gear. The bearing fits sloppy on the plastic gear. The o ring area on the inside deforms and the gear would always loosen up enough to sling out the diff fluid. Small pieces of dirt and rock would embed them self into the plastic and make intermittent noises. Since I went to the steel gear I have had zero problems.

+1
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Originally Posted by lucias

I am thinking about trying one of wide metal ones for my 8ight-T.. .

I went this route on my CRT. It is a good way to go, but one thing I had to do though was use the Losi outdrive and losi o-ring on the spur side because they are slightly different than the Jammin parts and they would leak and make a big mess.

I use plastic spurs on my buggies. They work ok. I think I my change to metal in the future.