[skellyo]

I ran through probably 20 packs with my RC18T before I stripped a rear diff. I was running a Mamba 6800 system in it using up to 2S Lipo or 8 NiMh cells. I didn't strip it until I started jumping it and landing it on flat ground more often than normal. The diffs are pretty darn tough if you shim them when you get them.