just looked at this thread. video disabled. sorry if i'm not totally up to speed on the subject. i have a 2012 ls 3039 that i bought new. was working it the other day and it started making an awful racket. called dealer to come out and tell me what's wrong. he says radiator fan is hitting the shroud. and this is happening because your frame is cracked. new frame replaced under warranty. and new frame came with a plate(re-enforcement brace). that's my experience for what it's worth. happened a month ago. 220 hrs. tractor used for brush hogging, snow removal, hauling logs, moving firewood in bucket.