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Message: [QUOTE="argclh6670, post: 1430602, member: 124220"] Hey guys, im rebuilding my kids 95 h1. Have so for last month, all new bearings n seals thru out. Incl. new lower and topend. Misc. fasteners and such. Might need therapy after this one! Okay, now to my question. i purchased a Pro x piston kit and upon checking all measurements, rings thikness, endgap and all that jazz. i have found that the top ring groove is out of spec. It is approx. .13mm smaller than the rings at full seat. Both rings check out as with bottom groove too. Im guessing i just have a defective piston on hand. Has anybody else had an issue such as this. I bought the dang thing from an auction seller as i do alot of my new pARTS. Always doing things on a tight budget. Its now beyond the sellers return period, i have contacted him, no replyu as of yet. Im going to contact Pro x directly too. Has anybody dealt with their customer service? [/QUOTE]