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Old 07-04-2008, 10:42 PM   #61
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I have a somewhat related question. How do you guys remove ball cups from the studs without bending and scraping (pliers) the cup itself? Is there a tool that does it without too much damage to either parts?
I made a fork-looking tool. Pops them right off, neat and clean, no marks.
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Old 07-05-2008, 06:09 AM   #62
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I have a somewhat related question. How do you guys remove ball cups from the studs without bending and scraping (pliers) the cup itself? Is there a tool that does it without too much damage to either parts?
Assoc. turnbuckle wrench works great.
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Old 07-05-2008, 09:05 AM   #63
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I've been rockin the j-concepts white ball cups on the 2whl and 4whl, and i've only popped one off, none broke or bent.
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Old 07-05-2008, 09:26 AM   #64
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i run the RPM ones they work great ive been running them for the last 3 years about
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Old 03-28-2009, 07:12 AM   #65
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Default BAllends for a corally

How do I find out if the ball studs are Metric or Imperial size ???

I want to use RPM ballends but I'am not sure weather they will fit on an Corally RDX PHI car
Does any one know if they will fit ???
If not what are better than the original corally Ballends
Thanks
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Old 03-28-2009, 08:44 PM   #66
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as long as there fresh(not worn out) I've had good luck with rpms/associated and jc concepts.
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Old 03-29-2009, 07:02 AM   #67
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No luck with the RPM's, or AE but the J Concepts are the best I have found
so far.
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Old 03-29-2009, 05:20 PM   #68
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The RPM ball cups are the toughest I've used but they do wear out quick. I've had mixed results with the AE ball cups, the last kit I bought (b4 early this year) they were garbage. They split right down the middle, I've never seen them do that before.

Also, if a ball cup is tight when you put it on the stud, squeezing it with a pair of pliers will loosen it up.
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Old 04-01-2009, 08:29 PM   #69
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Losi HD's
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Old 04-01-2009, 08:35 PM   #70
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Losi HD's
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Really Durable, larger area
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Old 04-02-2009, 01:17 AM   #71
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A fresh set of ball cups, ball studs, and turnbuckles should NOT popoff under NORMAL circumstance.

There's probably another issue at hand. The most likely cause is a geometry problem, either from flexing too much (which changes the intended range) or you have a worn out or broken section of the suspension which is causing the alteration of a geometry. Also, you might want to check to see if you need limiters in your shocks, inside and/or outside the shock, depending on where the problem is, during droop or full compression.

I kept popping my RPM ballcups fitted onto AE ball studs with AE titanium turn buckles, and it turned out that the rear suspension arm was torn, but not too extreme that it was obvious. I didn't realize this until I started to wonder why suddenly the ball cups were popping off in that particular side, in that particular area for doing absolutely nothing but running the car.

A torn arm caused the geometry of the rear suspension to be altered ever so slightly, which in turn forced the ball cup to pop off on that side. Once replaced, no more popped ball cup.

But after long lengthy use, it is worth it to change out the ball stud and the ball cup simultaneously if you suspect normal wear is what's causing them to pop off. During racing, in a pinch, I used to take a plastic shopping bag and just cover the top of the ball stud with it, pop the ball cup on it, then tear off any excess shopping bag. This was a trick that I did 15 years ago, but it's a temporar fix that will eventually require a full replacement....
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