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'71 Javelin 304 flexplate solution(s) ?? |
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Lou Abernathy
AMC Apprentice Joined: Jun/20/2014 Location: N.C. Status: Offline Points: 69 |
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Posted: Apr/19/2018 at 10:09pm |
'71 Javelin 304 flexplate solution(s) ??
Given that '71-'70 304 flexplate is unique, what's best fix for damaged ring gear teeth ? AMClives offers a billit copy, but it's expensive...$340......and not clear what "factory balance means" 1) anybody have experience with it ?... did it need to be re-balanced ?....starter lined up ? 2) is there another supplier ? (no luck w/Summit or Jegs) 3) has anyone welded-up bad ring gear teeth, and ground or cut back to shape ? (avoids balance problem) 4) any other fix ?? (TIA) Lou |
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1970390amx
AMC Addicted Joined: Jul/11/2008 Location: colorado Status: Offline Points: 3314 |
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You could past a wanted add, it might help to have a picture of what yours looks like. A good machine shop could remove the ring gear and replace it. Should be the same gear as a manual trans. I would not trust a welded gear.
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1970 390 4speed Bittersweet shadow mask AMX
1970 Amx missing most everything, or in a box |
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pit crew
Supporter of TheAMCForum Joined: Jul/08/2007 Location: delete Status: Offline Points: 5341 |
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Have you check the AMC vendors like Kennedy American, American Parts Depot, Galvins, or Blazers?
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73 Hornet - 401EFI - THM400 - Twin Grip 20 |
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304-dude
AMC Addicted Joined: Sep/29/2008 Location: Central Illinoi Status: Offline Points: 9082 |
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Still haven't gotten down to removing tranny from engine, else I would have a nice one available right now.
Let me know if your unable to find one, i should be able to get things rolling some time next month. |
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71 Javelin SST body
390 69 crank, 70 block & heads NASCAR SB2 rods & pistons 78 Jeep TH400 w/ 2.76 Low 50/50 Ford-AMC Suspension 79 F150 rear & 8.8 axles Ford Racing 3.25 gears & 9" /w Detroit locker |
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401MATCOUPE
AMC Addicted Joined: May/20/2010 Location: Salisbury, MD Status: Offline Points: 5367 |
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Jeff Kennedy at Kennedy American used to have a guy to repair them, including cracks in the center.....contact him...he is in the Vendor Directory.
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Ross K. Peterson
68X,GoPac,343,AT,52A(1stCar) 68X,GoPac,390,4sp,52A 69X,GoPac,390,4sp,64A 70X,GoPac,390,4sp,87A,8 70X,GoPac,390,4sp,BBO,8 70 Jav SST,390,AT,BSO 74MatX,401,AT,Prototype 74MatX,401,AT |
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PHAT69AMX
AMC Addicted Joined: Jul/07/2007 Location: West Virginia Status: Offline Points: 5926 |
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(revised, Thank You 304-dude)
Another option, as I understand it but have not actually done it, is if you find ANY BW M-35 Flexplate and you still have the Flexplate correct for your car, a "good" engine shop can Re-Balance the "new whatever" Flexplate and match balance it to your existing bad ring gear Flexplate. Edited by PHAT69AMX - Apr/20/2018 at 2:49pm |
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304-dude
AMC Addicted Joined: Sep/29/2008 Location: Central Illinoi Status: Offline Points: 9082 |
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He's got the M 45 tranny like me if he is correct about the 304. |
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71 Javelin SST body
390 69 crank, 70 block & heads NASCAR SB2 rods & pistons 78 Jeep TH400 w/ 2.76 Low 50/50 Ford-AMC Suspension 79 F150 rear & 8.8 axles Ford Racing 3.25 gears & 9" /w Detroit locker |
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White70JavelinSST
Supporter of TheAMCForum Joined: Aug/08/2012 Location: Minnesota Status: Offline Points: 4867 |
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I disagree with the analogy that a welded ring gear is not to be trusted.
I agree with an improperly done repair job not trustable. Do it correctly including preheat, correct build up filler material, post heat, stress relief, correct reshaping of the teeth, and case hardening where required and the welded ring gear will be as good or better. It's all about who is doing it and how. Does it make sense to do that from a cost standpoint? Versus have the shop remove and replace the entire ring gear? Only you can decide that. Edited by White70JavelinSST - Apr/20/2018 at 1:54pm |
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70 Javelin SST, second owner, purchased 1972
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Lou Abernathy
AMC Apprentice Joined: Jun/20/2014 Location: N.C. Status: Offline Points: 69 |
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did you happen to come up with a '71 304 flexplate ??....just checking (TIA) Lou
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72AMX
AMC Nut Joined: Aug/07/2007 Location: United States Status: Offline Points: 476 |
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removed
Edited by 72AMX - Jan/29/2019 at 8:40pm |
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