well here is a update of my xtm mmt , the rear aluminum a arm pin holder will bend and not hold the a arm pins in anymore , the a arms will break if they clip a side or the tire lands on one wheel hard and i mean hard off a 15ft jump.
that is all
all in all it runs strong the xtm 28 stilll going strong after 3 gallons of 20% its one of the best and fastest and biggest in my fleet.