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Stripped control arm threads |
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cnagorka
AMC Apprentice Joined: Jan/02/2014 Location: Saint Albans, W Status: Offline Points: 200 |
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Posted: Sep/21/2022 at 11:41am |
Hello all: I'll make it quick, checking the front left suspension on my '61 Ambo and it looks like all four control arms have stripped threads for the trunnion caps: it's strange because they don't look ovalized at all, it's almost like they were too big to begin with (tho' I think that's impossible). So: is there any fix other an replacing all of the control arms? If that's the case I'm tempted to just put it back together and get rid of the car. CN
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1961 Ambassador Custom, 1967 Ambassador 990, 1960 Rambler Six Super, '65 American 440
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Trader
AMC Addicted Joined: May/15/2018 Location: Ontario Status: Online Points: 6881 |
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Are these what your looking for:
Seems unreasonable to get rid of the car if these are the problem and can be replaced. Selling the car, any prospective buyer should be made aware of the problem, just a given!
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cnagorka
AMC Apprentice Joined: Jan/02/2014 Location: Saint Albans, W Status: Offline Points: 200 |
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That won't help as the trunnions themselves are fine, the threads are perfect and everything's good, it's the control arms that are the problem. And, yes if I got rid of the car I'd let the next buyer know. But I think I've got a way around this.
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1961 Ambassador Custom, 1967 Ambassador 990, 1960 Rambler Six Super, '65 American 440
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Ramblage
AMC Addicted Joined: Apr/29/2008 Location: Fresno, Ca Status: Offline Points: 706 |
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For all four to be stripped, i wonder if someone set it up wrong before. Theres a specific way those go on and of not set up properly it can cause damage to components. Tomj has a good write up on setting those up. Hears the link https://www.ramblerlore.com/AMC/index.html#FRONT You can try welding the area where the cap fits if you have a welder and grind it out to where the trunion caps fit more snug and tack weld the cap to the control arm. Other than that best bet is buying a good used set of control arms or a nos set from an amc supplier if they have them.
Edited by Ramblage - Sep/24/2022 at 4:03pm |
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1960 Customized Land Barge Rambler Super with Dodge 360 & 5spd
1971 Silver Bullet Javelin w/232 Engyne! 1972 Crappy Green Javelin w/401 and AW4, still in the works |
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cnagorka
AMC Apprentice Joined: Jan/02/2014 Location: Saint Albans, W Status: Offline Points: 200 |
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Yes I think someone did set it up wrong, the upper control arm bushings seem to be missing a set of domed washers that the other side had. I thought of welding or brazing in some material then tapping it.
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1961 Ambassador Custom, 1967 Ambassador 990, 1960 Rambler Six Super, '65 American 440
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tomj
AMC Addicted Joined: Jan/27/2010 Location: earth Status: Offline Points: 7544 |
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Bummer. I'd replace the arms, hard to find only because people don't usually need them, they last "forever".
You also need the cupped washers they are very important. So finding n upper arm set is probably worth the effort. From the factory the cupped washers are swaged into the bushings. Clean those trunnions thoroughly and inspect closely. Theere can be some slop and wear on the cap threads, they don't run tight. But if the trunnion threads are badly damaged those will need to be replaced. That could be very expemaove. But they are usually good.
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1960 Rambler Super two-door wagon, OHV auto
1961 Roadster American, 195.6 OHV, T5 http://www.ramblerLore.com |
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cnagorka
AMC Apprentice Joined: Jan/02/2014 Location: Saint Albans, W Status: Offline Points: 200 |
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Yep that's what I thought...I'm waiting for a response from a couple suppliers.
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1961 Ambassador Custom, 1967 Ambassador 990, 1960 Rambler Six Super, '65 American 440
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cnagorka
AMC Apprentice Joined: Jan/02/2014 Location: Saint Albans, W Status: Offline Points: 200 |
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Amazingly Blasers has some NOS upper control arms so I'm getting a pair of them...no lowers, but hey, that's half the battle.
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1961 Ambassador Custom, 1967 Ambassador 990, 1960 Rambler Six Super, '65 American 440
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