Today I experienced my first of a kind of break down I would have never dreamed of happening , involving Gerberdeen after mark front idler failure on a T series , it started with a simple track adjuster reseal and turned into a fiasco , after having a hard time removing the track as the idler would not go back into the frame to give slack even with another Bobcat pushing it , I had to pull it off the machine by wrapping a chain and having the operator turn the track while I pulled it with another machine , after getting the track off I could see the front idler bearing was still good but the wheel was worn really bad and very much smaller in diameter than when new as the wheel was barely sticking out of the frame , the was clay mud all over the frame so I could not see the real problem yet , I was trying to get the track adjuster /spring assembly out of the frame and it was stuck bad , tried come-a-longs , chains and another Bobcat with out any movemet , started cleaning out mud that was packed up around the spring when I blew throught the steel and found the frame which holds the track onto the machine had been cut like a can opener in two places from the front idler back 3 ft by the steel lugs/guides that stick down from the track to keep it on and in line with the idler , and had ate two inch deep by inch wide grooves thru the top of the plate that centers the track adjuster shaft and spring assemble in the frame , this happen as the idler got smaller in diameter it allowed the track to contact the frame , and to make matters worse the metal from the frame rolled over into the inside and was jamming the thing from coming out , took 3 hours to get it all apart and change the seals of the adjuster , going to finish it up after the holiday , need another idler @ $725.00 and to weld up the holes in the frame which look like a dual bladed band saw cut it in half or buy and change the $3,100 frame plus probally a good day of labor to do it , weld it no doubt --------I reall feel the cheap after market part caused the whole problem , the part was probally made from melted down toaters and washing machines , for a while it was bearing failure , and now it is metal deteriation , you get what you pay for sometimes -----BEWARE