Arm ball joint opinion
I will be replacing my lower arm ball joints at some point and whilst looking at the repair kits I found a place nearby that offer complete refurbish with a threaded type ball joint. Just wondering peoples opinions on this. A good price too where they will thread the arm, vapour blast and supply the ball joint. I like the idea of this.
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- blueline
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@CarBot - are you active yet on OP queries?
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dr bob
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How is the ball-joint secured in the arm? Loctite or staked? Get spare ball-joints while you are there.
New bushings in the control arms at the same time?
New bushings in the control arms at the same time?
dr bob
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Yes, I've done all the back end work to make carbot reply here but just haven't ported it over yet. Will do soon.blueline wrote: Thu Jul 02, 2026 2:53 pm @CarBot - are you active yet on OP queries?
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- PSU_Crash
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I have the same questions. It seems like a great idea, but it needs to stay put. It must have a stake or clip somewhere, right? Loctite is great, if you trust itdr bob wrote: Thu Jul 02, 2026 5:24 pm How is the ball-joint secured in the arm? Loctite or staked? Get spare ball-joints while you are there.
New bushings in the control arms at the same time?
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chrischrischris
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I saw that ball joint somewhere before and thought it was really nice. What place offers the service?
Good point about the locktite. Some of the threadlockers are designed to be semi-permanent.
I guess you don't want to use the rennbay rebuild kit because it doesn't address any possible wear to the aluminum cup in the arm?
Good point about the locktite. Some of the threadlockers are designed to be semi-permanent.
I guess you don't want to use the rennbay rebuild kit because it doesn't address any possible wear to the aluminum cup in the arm?
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dr bob
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I have a lot of trust in Loctite, assuming the prep and application are perfect. Some Stud & Bearing Mount with proper primer should be sufficient, knowing it will take some serious heat to get it to release if/when you decide to replace the ball joint next time.PSU_Crash wrote: Thu Jul 02, 2026 8:13 pmI have the same questions. It seems like a great idea, but it needs to stay put. It must have a stake or clip somewhere, right? Loctite is great, if you trust itdr bob wrote: Thu Jul 02, 2026 5:24 pm How is the ball-joint secured in the arm? Loctite or staked? Get spare ball-joints while you are there.
New bushings in the control arms at the same time?![]()
dr bob
1989 928 S4, black with cashmere/black inside
SoCal 928 Group Cofounder
928 Owner's Club Charter Member
Former Ex Bend Yacht Club Commodore Emeritus
Free Advice and Commentary. Use At Your Own Risk!
1989 928 S4, black with cashmere/black inside
SoCal 928 Group Cofounder
928 Owner's Club Charter Member
Former Ex Bend Yacht Club Commodore Emeritus
Free Advice and Commentary. Use At Your Own Risk!
Having just rebuilt my control arms with the Rennbay kit, it seemed like a better solution than stock. The plastic cup was in pieces on one side. I don’t see a reason why the new metal cup wouldn’t last another 30yr especially with the ability to add grease. Im not an engineer though.
This was via ebay but the company is an engineering company doing suspension and race parts based in York, UK. Not opposed to the repair kits. I just liked the idea of a screw in and eaily replaced if needed. Aware I am talking like a race car driver needed to change my ball joints regularly! I didnt check as yet on whether loctite or other secure methods used.chrischrischris wrote: Fri Jul 03, 2026 3:40 am I saw that ball joint somewhere before and thought it was really nice. What place offers the service?
Good point about the locktite. Some of the threadlockers are designed to be semi-permanent.
I guess you don't want to use the rennbay rebuild kit because it doesn't address any possible wear to the aluminum cup in the arm?
