the twins were notorious for eating rollers and bushings. something to do with the "harmonics" of the motor. arms being shot are from a lack of maintenance. backlash effect from the rollers going out. put stock components back in and check it at least yearly, depending on use. at the least, the clutch should be cleaned annually. this will reduce wear and let you check the components. as for the transfer rods, i had good luck with the max perf ones, but they are no longer in business. i put a 141 on that sled years ago and and its been virtually trouble free for years. bought it for the wife in 98, sons rode the p out of it, daughters been using it for the last 2 years. just a heads up, somewhere between 3500 and 4000 miles, the ring lands disintegrate. if the odo is approaching these numbers and the top end hasnt been gone through, be prepared.new pistons and rings are way cheaper than cylinders.
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