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Message: [QUOTE="Dave_Nevada, post: 1498370, member: 29749"] If they won't touch the ZF6 it's because it's a time consuming HO, which means money, which means profit. The prices I see charged on-line 2K+ are actually pretty decent for what goes into and R&R. I kept track of all expenses and time consumed, methods, tools required to fix, etc. 2K is a bargain. Anyone charging less is just fooling themselves or they have hidden costs they spring on you later. Things like- "If the main case or rear case is cracked that'll be another ____<--fill in the blank. Also, DO NOT ACCEPT a rebuilt trans if you see that GD sleeve modification installed. That means the rebuild is sub-standard and you are about to get ripped off. Any trans shop worth their salt replaces the damaged input shaft with a new one. Main cases with cracks in them is something they will charge you for on your core. MOST 7.3's have them, it's just a matter of where and how bad are they? Obviously if it's a long runner crack, you're in deep doo-doo with your core. That was me. :fustrate: BTW- You can stop a crack if you find the end by using an old glazier's glass trick, drill a hole at the end of the crack. Depending on where it's at, it won't hurt a thing. Just a dab of silicone seals it and you're good. That said, I'm on the West coast. It just made more sense for me to rebuild the trans than to go through the risk of getting another trans with its own unique set of problems. One last thing. Employing a 'Kevlar' pilot bearing is just ______. <--- You fill in the 'expletive deletive'. You go from one that runs out of lube and acts like a metal lathe to another that won't hold up to long term wear. <sigh> :popcorn: Okay, getting rid of plastic should be your #1 goal in the entire clutching system. Plastic is nice for Tupperware, model airplanes, tooth brushes, blah blah blah. As a pilot bearing? :drool: Surely you jest Sir. LOL To equivocate the performance of Kevlar (the load physics of stopping bullet penetration) to the physics of heat generated by torsional force friction of the input shaft is apples and oranges. It's what we call a non-sequitur (a Non-starter). [/QUOTE]