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Old 06-19-2003, 12:59 PM   #1
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Default Snuggest fitting ball cup/ball joint combo?

What do you rate as the tightest fitting ball end and ball cup combo?

I'm looking for something to be used as the ackerman link in my Yokomo - currently the left wheel has much more play than the right, due to there being two links in the equation - and I beliveve this makes the off-power tracking different to the on-power tracking.

Yokomo's standard balls are ok, but they're thin and stretch.

I'm running RPM cups now, which are sturdier, but still not totally snug.

Yokomo and associated balls are the same diameter according to the vernier.

I've used Fastrax cups in the past, which are quite snug, but stretch, and are prone to popping off when you adjust the turnbuckle.

Any other suggestions - perhaps Schumacher parts?

Or any other trick to tighten the fit? Grease in the cup? O-ring around the ball joint before the cup goes on?
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Old 06-19-2003, 01:12 PM   #2
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Sosidge Tamiya just released new molyebdenum cups alont with the flourine ball ends they fit great on my EVO.

I am sure everyone will have their own prefs
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Old 06-19-2003, 02:49 PM   #3
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I still use the ol' adjustable ball cups from Robinson. The size is the same as Associated's but you can make infinite fit adjustments via the set screw that's molded onto the top of the crown. I can adjust it to be just tight enough to not have play but also not bind your suspension. They work good on sedans but not so durable for off-road.
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Old 06-19-2003, 10:30 PM   #4
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Use the Schumacher ball cups. Close tolerances and last FOREVER....take abuse......

I am using Schuie ball cups and titanium ball studs......works well.
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Old 06-20-2003, 07:59 AM   #5
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I found that the Losi cups fit pretty snug on Yokomo ball ends. That is what I am running on my SD, and there is very little slop.
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Old 06-20-2003, 09:11 AM   #6
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The tightest combo i have at the moment is on my mission. Std Schumacher plastic cups, with Titanium Racing Schumacher ball studs. The TiR bits are a little oversized compared to the standard ones.
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Old 06-20-2003, 10:03 AM   #7
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My Xray T1 is pretty much slop-free fom day one. The ballcups are very durable. If you are just after eliminating slop, plumbers teflon tape works well. Just cut a small piece, fold it a few times depending on the amount of slop you want to take out, place it on the ball before putting the ballcups. Tight and smooth.
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