How much and how hard do you play with you tanks? I run mine (KT) weekly some times more.Plus I run my KT quite hard(?) my yard is like a 1/8 scale buggy trade but slanted and teared with tall thick grass and tree fall out.My drive way is "paved" with pea to Quarter sized gravel mostly packed but sum lose and the lot up from me has crushed(very large gravel) rock in it.Oh I have a small creek too.Thats where I run my tanks. I have broken 2 track flats(?) on my KT (old cluch steer).Now how and where do you run your tanks?Oh and who said you had to have all those suspension up grades for a KT to make them reliable?I run a 55t Intgy lathe motor too.Sorry for the rant.