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AMC 20 Twin Grip Rebuild Video's |
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FSJunkie
AMC Addicted Joined: Jan/09/2011 Location: Flagstaff, AZ Status: Offline Points: 4741 |
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All I can say is you better have a MASSIVE bench vise bolted down to a heavy table that is lag-bolted to the concrete floor when you try to rotate the case with new clutch packs in it. I have a 5-inch vise and almost broke it clamping it tight enough to the axle shaft to keep it from spinning.
That's with the two-spider limited slip, the four-spider might be easier. |
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1955 Packard
1966 Marlin 1972 Wagoneer 1973 Ambassador 1977 Hornet 1982 Concord D/L 1984 Eagle Limited |
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rusty71sst
AMC Apprentice Joined: Jun/24/2013 Location: Central Ga. Status: Offline Points: 53 |
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Hi any videos still available? Thanks Steve in Ga.
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amc is the torque master!
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rogue_66
AMC Nut Charter Member Joined: Jun/29/2007 Location: Oregon Status: Offline Points: 274 |
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I'm burning some more copies tonight. Need to print up some more jackets, so by the weekend I should have about ten copies ready to ship. I'll respond to PM's at that time. Dean |
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bertmorton
Supporter of TheAMCForum Joined: Apr/19/2013 Location: Anderson sc Status: Offline Points: 95 |
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PM sent
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1969 AMX 390
2002 Corvette 1969 Chevelle SS396 1965 Corvette 2022 RX350 2022 Camry XSE |
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captscot
AMC Apprentice Joined: Feb/05/2013 Location: N Brunswick, NJ Status: Offline Points: 239 |
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Hi, Though this post is several years old, your knowledge of the AMC 20 Twin Grip, you than most might be able to answer this question. I have a '72 Javelin with an AMC 20 single grip 2.87 differential. Would it be possible to swap out my differential and put in a twin grip? Your DVD would be a great education to do this procedure.
A second part question, your familiar with the twin grip, I was under the impression that the AMC 20 twin grip contained clutch discs in addition to gears, bearings. Someone right now in the group's Parts For Sale section has a "Twin Grip" for sale with a photo. This looks like only a matter of various gears, no clutches. Is this the correct Twin Grip to put in a 1972 axle/differential case? Thanks much, Scott |
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1972 Javelin AMX - orig owner
1985 Grand Wagoneer 1967 Jeepster 1968 Jeep Gladiator 1959 Jeep CJ5 1929 Marmon model 68 |
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1970390amx
AMC Addicted Joined: Jul/11/2008 Location: colorado Status: Offline Points: 3312 |
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If you are talking about the one ant has for sale. yes it is a 71 and newer factory twin grip.
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1970 390 4speed Bittersweet shadow mask AMX
1970 Amx missing most everything, or in a box |
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tufcj
Supporter of TheAMCForum Supporter of TheAMCForum Joined: Jul/10/2007 Location: Watkins, CO Status: Offline Points: 4066 |
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Through 1970, AMC used the 2 piece carrier with 4 spiders (Dana Power-Lock). 1971 up, they used the one piece carrier (Dana Track-Lock). Both were sold under the AMC trade name "twin-Grip". The one in the for sale section is the Track-Lock. It has clutches between the carrier and side gears. The trouble with those is the outside clutch rides against the case, and usually if the unit needs a rebuilt the case is out of spec (worn). The one piece units aren't known for their longevity. Bob tufcj |
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69 AMX
74 Javelin AMX 67 Rogue If you need a tool and don't buy it... you'll eventually pay for it... and not have it. Henry Ford |
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Jercos360
AMC Fan Joined: Aug/24/2015 Location: Johnstown pa Status: Offline Points: 4 |
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I just put a twin grip in and there is a lot of axle play, ateast a 0.25 in! Looking at the open and the posi diffs the open has a much wider thrust block which I believe is why I have so much slop. Is there a part I am missing? Any help would be greatly appreciated!
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1970390amx
AMC Addicted Joined: Jul/11/2008 Location: colorado Status: Offline Points: 3312 |
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I dont know what you own or what you put in it but the factory twin grip 70 and older is a two piece housing and the thrust block is a small two piece part held together with a 1/8" roll pin it falls out very easy. if you need a picture ask and I will dig one up.
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1970 390 4speed Bittersweet shadow mask AMX
1970 Amx missing most everything, or in a box |
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Jercos360
AMC Fan Joined: Aug/24/2015 Location: Johnstown pa Status: Offline Points: 4 |
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Sorry I have a 70 hornet, I'm putting a 20 from a 71 hornet because I had the smaller rear originally. I got a split case diff from my uncle, so I'm not sure what it came from.
http://youtu.be/MHSVHSoieak If the link doesn't work I'll load pictures tonight, but that's what my diff looks like. My axles go in to the spider gear center, which is thinner than the thrust block on the open diff which is why I think I have so much axle play. |
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