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Im up Shit Creek; Need 620 Experts.


Jonatsun

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Hello, so i was driving my baby, 1979 620 when i hit a pothole going down a hill. Alignment shims where falling like tic tacs out  of the bottom so i took it to a shop and the mount to the front left control arm is broken. they wanted to charge me upwards of 700 dollars. but its my rat, I've done all my own work in the past so i took it home. Now i cant find control arm mounts for my rig, i searched this site and others but cant find the process of what to do and i need it running within 2 weeks.

does anyone know where to find these mounts or substitutes?

i live in spokane washington

its the lower control arm

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These parts don't usually fall out, so what did you do to it?? Keep in mind that pictures help....

i hit a pot hole and the mount broke and then it allowed space for shims to fall out, then they kept gradually falling out on the drive home, i cant post pictures. dont have ability right now, no cellphone or digital camera

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If the part that broke was welded to the frame, $700 isn't an unreasonable amount to weld on a new perch and realign everything.  If it's just the bolt on part, then it's junkyard hunting time and you can do it yourself.  Though if the shims fell out, I'd think the threads got stripped out.

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its the lower control arm

 

 

i hit a pot hole and the mount broke and then it allowed space for shims to fall out, then they kept gradually falling out on the drive home, 

 

Interesting what could be broken here. The lower control does not have any shims...The upper does though....

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This is what happens when a vague post is made that begs more questions than answers. You need it running in 14 days and 4 have been wasted. I picture often shows the problem even if the question is wrong. A pot hole isn't going to do what you have described.

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This is what happens when a vague post is made that begs more questions than answers. You need it running in 14 days and 4 have been wasted. I picture often shows the problem even if the question is wrong. A pot hole isn't going to do what you have described.

 

It would if the frame was rusted enough or maybe it was crashed before and not repaired correctly.  Either way we would need to see the problem area, til then it's all speculation.

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  • 2 weeks later...

http://i1172.photobucket.com/albums/r576/jonatsun/IMG_20140607_144448_zpsfe63dbb7.jpg

http://i1172.photobucket.com/albums/r576/jonatsun/IMG_20140607_144654_zps0e8d0d93.jpg

http://i1172.photobucket.com/albums/r576/jonatsun/IMG_20140607_144654_zps0e8d0d93.jpg

 

you can see the separation of the mount and frame, and here is the broken bolt of that mount. i didn't self diagnose the break, a shop did when i went to get alignment fixed. but no arms are bent or broken, just the passenger mount to the frame right there.

sorry it took so long to get back, i had a huge school load and i borrowed a truck for 2 weeks. but i have the ability to fix this now. 

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Maybe it's just my eyes, but I can't see the broken part.  Yes, things aren't where they are supposed to be but it just looks like a truck that's been lowered too far with no suspension travel, resulting in the bump stop getting bent and a bent LCA.. 

 

If the broken part is welded to the frame I don't see you fixing this yourself.  If it's one of the bolted parts, then you just need to replace it, though that LCA looks twisted to me.  78-79 620s are your only option there. 

 

 

A view from under the hood from above (with the rubber splash shield pulled back) , or from the side with the wheel off might tell me more.  I just can't see what's broken from those angles.

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spent more time looking at it today
http://i1172.photobucket.com/albums/r576/jonatsun/new2_zps1e0705d0.jpg here the right bolt is broken out and allowing movement of arm

 

http://i1172.photobucket.com/albums/r576/jonatsun/new1_zps1e782eec.jpg the left bolt is loose

 

http://i1172.photobucket.com/albums/r576/jonatsun/new3_zpsf2cc43d2.jpg and this is where the bolt went into.

 

im going to get some more photos up. whatever angles you need to see it from let me know il have them up asap.

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Nothing wrong, I'm with Doug on this. These bolts don't back out. Someone had them out to remove shims to adjust the camber after dropping it way too far and didn't torque them enough. They were already loose when you hit the bump.

The Nissan part number for the '78-'79 620 is #08104-44510 and is an M 14X1.5 hex bolt about $3. Also used on the 2 and 4wd  720 truck through Oct. '82  Get some lock washers for it and torque them properly. Needless to say (but I will anyway) check the other side right now!!!

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If you can't get new bolt from Jaremko Nissan parts in Spokane (and the guys there are really good to work with), go to the two Pull & Save locations:

http://www.pullandsave.com/home.htm

Their inventory shows '80 and '81 pickups at the Valley location. The North store probably has something too, but the website is being weird tonight and doesn't show inventory. The inventory lists aren't always up to date anyway, so take your tools and go see what they have.

 

Len

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As long as that's not a crack in the tower (probably isn't), should be able to replace the shims and bolts.  Replace both- I can guarantee the other one is bent.  Hopefully the threads didn't get stripped out of the tower.  But that's caused by the bolts backing out, the pothole just aggravated the problem.  It was going to fail pretty soon anyway as the bolts backed out more.  Parts that aren't supposed to move started moving, and the momentum was more than the bolt could handle.   Usually when that happens both bolts break and the upper A arm ends up in the oil filter, so you got lucky there.

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