Today I worked on a Cat 287B tracking system , I would not own one , it started off changing tracks , I didn't see machine before hand and took their word that all it needed was tracks , Cat wants $3800 each for their tacks so that is $8,400 , found a set of Taji ( which I have had good luck with on Bobcats ) for $3,800 with the freight and taxes included , good deal so far , took the tracks off and both adjusted turnbuckles were rusted beyond use , 2 turnbuckles @$180 each , every roller and idler rubber destroyed and bearings bad , broke off 3 of the squirrel cage adjustment bolts , got the price on the rollers from Cat $1,050 times 4 for front and back idlers, $750 each for 10 boogie rollers , so Cat come up with a price of $12,500 plus tax and freight , if you add in their tracks it comes out to around $23,000 , the machine ain't worth that , searched the internet and can save $250 per idler asssembly and $150 per roller assembly , still exceeds what the machine would be worth ------- I concluded that the Cat tracking system is over priced junk , talked them into throwing the new tracks over the bunk rollers and going look at the new Kubota or Takeuchi