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72 Javelin - Need Yoke for 727 |
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mantonas
AMC Apprentice Joined: Mar/21/2015 Location: Knoxville, TN Status: Offline Points: 196 |
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Posted: Jul/02/2022 at 5:03pm |
I have posted about this car in other parts of the forum for other reasons. It's a 72 Javelin SST which originally came with a 304 and presumably a 904 transmission but when I bought it had a 360 and Turbo 400 in it, probably from a 70s Jeep. The engine is locked up so I'm replacing it with a 360 from an 89 Grand Wagoneer and a 727 transmission from another Javelin.
I need to sort out my driveshaft situation. I suspect the slip yoke that's on there now that fits the Turbo 400 will not work with the 727, is that correct? I've been looking for a complete Javelin driveshaft and yoke, but I'm leaning towards buying a new yoke and getting my current driveshaft rebuilt to work with it. There's a good driveshaft shop here in Knoxville that I've used before. I found this on eBay, is it a good piece? The price is reasonable. If not, can anybody point me to a good one to buy? Thanks! |
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1972 AMC Javelin SST
1973 AMC Ambassador 401 1975 AMC Pacer D/L 1976 AMC Pacer X 1976 AMC Matador sedan 1978 AMC Pacer V8 coupe 1987 Jeep Grand Wagoneer |
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mstrcrftr
Supporter of TheAMCForum Joined: Jul/12/2010 Location: houston Status: Offline Points: 2066 |
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i seem to remember someone saying that the amc and chrysler transmissions were the same on the inside but different slightly on the outside.. i am sure some one here has that information and the yoke you are looking for..
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mantonas
AMC Apprentice Joined: Mar/21/2015 Location: Knoxville, TN Status: Offline Points: 196 |
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As far as I know the only difference is the AMC engine bolt pattern on the bellhousing part of the case so it mates up with AMC engines. I think the splined output shaft and the extension housing bushing are the same so any 727 yoke should fit but I just want to be sure before I buy one.
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1972 AMC Javelin SST
1973 AMC Ambassador 401 1975 AMC Pacer D/L 1976 AMC Pacer X 1976 AMC Matador sedan 1978 AMC Pacer V8 coupe 1987 Jeep Grand Wagoneer |
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mantonas
AMC Apprentice Joined: Mar/21/2015 Location: Knoxville, TN Status: Offline Points: 196 |
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I have a suspicion that a yoke from a bunch of later model Jeeps (Grand Cherokees) or Dodge trucks with 727 derivative transmissions might work. If that's true I can just grab one from the junkyard. Can anyone confirm this?
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1972 AMC Javelin SST
1973 AMC Ambassador 401 1975 AMC Pacer D/L 1976 AMC Pacer X 1976 AMC Matador sedan 1978 AMC Pacer V8 coupe 1987 Jeep Grand Wagoneer |
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mantonas
AMC Apprentice Joined: Mar/21/2015 Location: Knoxville, TN Status: Offline Points: 196 |
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bump
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1972 AMC Javelin SST
1973 AMC Ambassador 401 1975 AMC Pacer D/L 1976 AMC Pacer X 1976 AMC Matador sedan 1978 AMC Pacer V8 coupe 1987 Jeep Grand Wagoneer |
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1948kaiser
AMC Addicted Joined: Jan/25/2015 Location: south west flor Status: Offline Points: 839 |
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how many splines in the yoke?
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mantonas
AMC Apprentice Joined: Mar/21/2015 Location: Knoxville, TN Status: Offline Points: 196 |
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The transmission is in the shop right now, when I pick it up later this week I will count the splines.
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1972 AMC Javelin SST
1973 AMC Ambassador 401 1975 AMC Pacer D/L 1976 AMC Pacer X 1976 AMC Matador sedan 1978 AMC Pacer V8 coupe 1987 Jeep Grand Wagoneer |
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mantonas
AMC Apprentice Joined: Mar/21/2015 Location: Knoxville, TN Status: Offline Points: 196 |
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I got my transmission back and counted the spines in the output shaft - 30
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1972 AMC Javelin SST
1973 AMC Ambassador 401 1975 AMC Pacer D/L 1976 AMC Pacer X 1976 AMC Matador sedan 1978 AMC Pacer V8 coupe 1987 Jeep Grand Wagoneer |
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401MATCOUPE
AMC Addicted Joined: May/20/2010 Location: Salisbury, MD Status: Offline Points: 5367 |
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I have an new yoke (727 for AMC) that my local NAPA found for me many years ago and never used it. Just let me know if you are interested,
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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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PROSTOCKTOM
Supporter of TheAMCForum Joined: Jun/20/2010 Location: Indiana Status: Offline Points: 2458 |
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You'll want to decide what size U-joint you want for the 727 yoke. They were and are available in several different sizes.
Tom
Edited by PROSTOCKTOM - Jul/16/2022 at 12:35pm |
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Molnar Technologies Full Service Dealer - Crankshafts & Connecting Rods
1969 AMC Rambler Rouge Race Car 1974 AMC Hornet Hatchback, Wally Booth Outlaw Nostalgic Pro Stock Race Car Project |
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