Upper control arms ball joint...

Zazzn

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I was a little rough taking them out and broke a boot since I'm doing a whole front end refresh while doing the bushings and whatnot, I was wondering how to replace the upper since they are not on rock auto and dealer stock is long gone. Anyone know if someone can rebuild mine or if I can do it?
 

Jeff Lange

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The boots are still available from Toyota if you wanted to go that way, as far as the arms go, I've not seen anyone replace the joint in a stock arm. I bought a new set of upper arms a couple years ago from Toyota, but yeah they're gone now. Aftermarket arms are the only answer at this point.

Jeff
 

alcyon

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sorry. its carID




 

Dave 1jz

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Yes, fronts can be sourced aftermarket, don`t really understand why the rears are not.
 

Piratetip

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Another good parts candidate for "heritage parts".

Luckily all my upper arms were in good shape and could re-use them still.
I just re-booted them with new Toyota parts.

Someday all these parts are going to wear out though....
 
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Jeff Lange

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Aftermarket looks gone too they need cores i bet
I can’t recall seeing any aftermarket that remanufactured the stock ones, though I’m sure it’s been done.

Most aftermarket I’ve seen are new castings. There are slight variations between them and the originals.

Jeff
 
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Piratetip

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If someone is good with machining, they could remove the old balljoint and install a new one.
I know someone has done it in the past. (don't remember the thread)
It would be custom though.
 

Enraged

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It's not cheaper, but there was a FB thread awhile ago:

"Wanted to share my control arms I made for my MK3. They are SPC 94800 adjustable control arms. They are for a mustang ll but im sure other arms spc offers will fit just needs to be zero offset with the screw in style plate and the right length. I used a Chrysler screw in balljoint it was turned down to fit the knuckle."

It was posted by Josh Cody on Nov 9 on the Toyota Supra MK3 Appreciation Club

You could also build your own arms with SPC parts, you'd just need to measure which pieces you need. Summit carries all of the SPC parts. Chrysler balljoints appear to be 7 degrees. Looks like Moog K727 is the spec, you can get a variety of rebuildable balljoints from Speedway.
 
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Piratetip

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Yep was a Chrysler balljoint.

Post up some photos here for those of us that don't use FB.
 

Enraged

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alcyon

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I just destroyed my rear ARB link on the left side. I removed the link because it would make it easier to maneuver the rear shock out, but unfortunately the thread was mucked up and the allen key slot also stripped. Now I need to try to find a suitable link from some other car. Rock auto doesnt have any for the rears. Next time I will just unhinge the upper arm. I know lot of people say theres no need for that but dang it was damn difficult. I shudder to think of the re installation of the shocks.
 

Enraged

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to install the rear shock, you just need to pivot it the right direction (forward). I did one a little while ago, no other parts needed to come off. It will rub on the fender liner, but should come out relatively easily.
 

A70nut

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I just destroyed my rear ARB link on the left side. I removed the link because it would make it easier to maneuver the rear shock out, but unfortunately the thread was mucked up and the allen key slot also stripped. Now I need to try to find a suitable link from some other car. Rock auto doesnt have any for the rears. Next time I will just unhinge the upper arm. I know lot of people say theres no need for that but dang it was damn difficult. I shudder to think of the re installation of the shocks.
I put all new moog ARB links when I put swaybars to delete the plastic end links. They are the same all 4 corners and the moog are much stronger than stock with grease fittings on each ball and socket.
 
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Dave 1jz

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I can’t recall seeing any aftermarket that remanufactured the stock ones, though I’m sure it’s been done.

Most aftermarket I’ve seen are new castings. There are slight variations between them and the originals.

Jeff
Not absolutely sure about the fronts, but the rears are definitely forged aluminum. Probably after a cast first.
 

Asterix

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Fronts are also forged. Years ago I hack-sawed one of the eyes off a dead arm. This is not your garden-variety aluminum. It's way tougher, probably with high silicon content.
 

Jeff Lange

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Probably shouldn’t have used the term casting. I meant they were not rebuilding old arms but were instead starting from scratch. Makes me question the strength of their process as well.

Glad I bought a new set before they were obsolete but that won’t help next time. :\

Jeff
 

Zazzn

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Just reviewing this. There is only 1 upper control arm avail from what I find on all shops online. it's the drivers side from centric. I can't get both sides :(

Looking at the upper Arms I removed the rubber boot, and found some sort of washer was all beat up and bent and broken in there... I tried to press the bushing out without much success, going to try a few more things to see if somehow I can get it out and find a replacement.
 
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Zazzn

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Update! Rockauto just got mevotech upper arms in! FYI i called them to see what the difference between the supreme and regular was.. NONE. supreme has lifetime warranty vs the others have 5 year.

So buy the cheaper ones if you need them! They are made in Canada!!
 

Asterix

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I have to wonder at $55.79 each if they're properly forged. Shipping to VA is $30 (from Canada), but I am seriously tempted to get a pair even though my original ones are fine.

It's almost cheap enough to buy one just to try and hacksaw it and see how tough the metal is. Almost.
 

Piratetip

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I've bought mevotech suspension parts for other vehicles in the past.
They are "good enough", I wasn't very impressed.
But there are no other options at this point besides used parts.

I would also be curious of the strength of the aluminum arm vs. stock....
 

JustAnotherVictim

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The centric one fit just fine, still kept my original just in case.
I was ready to check this one out but wow at that shipping cost.
 

SupraDrew

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Just a FYI, i ordered these and they are not for the MKIII. If you look at the buyers guide on the part number is states it's compatible with the sc300/400.
Cntrl Arms.jpg
Left MKIII right Mevotech GS9809
 
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jcpham

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Same problem as everyone else. I sourced the centric driver arm, but still searching for passenger. Anyone have that PN for the boots?

edit: also have a set of the wrong mevotech arms via rockauto to return