Steering ball cups popping off 40th

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Sedizzle
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Steering ball cups popping off 40th

Post by Sedizzle »

Pretty sure this is a common problem and after coming up empty from a search thought I would ask here.

Is there a readily available upgrade or solution for the steering ball cups popping off? When I tap the drain pipe its about a 50/50 if one pops off my 40th.

Thanks!

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Re: Steering ball cups popping off 40th

Post by clutchcargo »

Sedizzle wrote: Mon Jan 13, 2025 8:50 pm Pretty sure this is a common problem and after coming up empty from a search thought I would ask here.

Is there a readily available upgrade or solution for the steering ball cups popping off? When I tap the drain pipe its about a 50/50 if one pops off my 40th.

Thanks!
Hey Buddy mine is still in box, but I have heard of them not being too good. Maybe try RPM a certain are around steering might rub from what I heard. You can trim.it to clear. Not really sure what else might be out there?? RPM has long and short shank, I always forget which to buy? THIS up there site and look, even send a email to make sure. Hope this helps a bit, some guys here are really incredibly smart and ALL are helpful.

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Re: Steering ball cups popping off 40th

Post by JosephS »

Sedizzle wrote: Mon Jan 13, 2025 8:50 pm Pretty sure this is a common problem and after coming up empty from a search thought I would ask here.

Is there a readily available upgrade or solution for the steering ball cups popping off? When I tap the drain pipe its about a 50/50 if one pops off my 40th.

Thanks!
I recall captured ball joints being used to solve this.
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juicedcoupe
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Re: Steering ball cups popping off 40th

Post by juicedcoupe »

RPM ball cups are really too bulky for a RC10 buggy, particularly around the bellcranks and front shock tower area.

If you are set on white, the Fan RC cups might be an option. I think Hot Racing has some as well but I don't know the quality.

If color doesn't matter, Schumacher short ball cups are excellent.
Always looking for new and interesting ways to waste money.

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Re: Steering ball cups popping off 40th

Post by LurkingCAT »

If you opt for captured ball joints, make sure you also get the cone spacers depicted by JosephS.

Along with juicedcoupe I also have very good experience with Schumacher ball cups - I use them on several platforms.

Here are some grey Schumacher ball cups on a Hotshot. They replaced the ae ones I used previously.
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LurkingCAT
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Re: Steering ball cups popping off 40th

Post by LurkingCAT »

Here is another setup with captured ball joints where cone spacers are used on the ones with vertical articulation.
The bell crank link joints are only fitted on a small washer.
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Re: Steering ball cups popping off 40th

Post by 1911Colt »

Not vintage, but very effective. I have these on a couple of re-re Cougars.
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Sedizzle
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Re: Steering ball cups popping off 40th

Post by Sedizzle »

Super helpful thank you all!

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