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By cos - 2 Years Ago
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Hello Members Having a devil of a time finding flywheel ring gear for stick trans. Order from 2 different parts houses. NAPA was NA. Both were Pioneer brand FRG-146NC. It was clear that ID was to small on first one. Order another one different store. Same brand same problem. E-mailed problem to pioneer me send back specs. 14.774 OD and 13.352 ID, 146 Th. OD and TH count was about right but I did come up with more ID dia. Near as I can measure the mounting diameter on flywheel is 13.47OD. Made a rod 13.47 long and heated ring to over 500 degrees and check expandation , maybe a few thousands not even close to fitting. Ring width top of tooth to ID of ring is .723 on new and ..660 on old .063 wider on new. I don't have a Mic and bore gauge that big to make exact measurements . Anyone know of a different supplier, maybe even a USA one. Thanks for any help. Cos
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By cos - 2 Years Ago
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edited first post
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By darrell - 2 Years Ago
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carpenter has one for 40.00 it says 146 teeth o.d.14 13/16 inside13 3/4
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By cos - 2 Years Ago
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Hello Members Thought I would pass this along for anyone changing a std trans flywheel ring gear. After hours of measuring, research and phone calls to Pioneer tech
they give a phone number. Called AL told him my trouble, before I say anything he said ID to small. YIP. Said he has them and would take care of me. Also he does not take credit cards, just send him a check when it gets here. Everybody I called sells Pioneer brand FRG-146NC gear. I bought 3 from different stores thinking it was fluke deal. Was making plans to have flywheel cut make it fit PIA. Tech guy refused to hear what I was saying. I did notice on flywheel boxes there was a lot of white out stickers I think they were returned before. Any way ALs number is 715 6773809 great guy most likely a friend of Y-Blockers.
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By 1946international - 2 Years Ago
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I ran into this problem 4 or 5 years ago, all the ring gears were too small. I was not as lucky as you to find the correct one so I bolted my too small gear to a rotary table and milled out the inside dia to make it fit. Thanks for solving this problem and posting it up for all to see.
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