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  replacing RD rear swaybar rod ends

 replacing RD rear swaybar rod ends



I wasn't thrilled with the quality of the of the rod ends provided by Racing Dyanmics with their rear swaybar, so I went looking around. Lots of options, some the same, some better, some too expensive (stainless steel metric). I wound up buying a few different types, but settled on some nice anodized aluminum ones from McMaster-Carr. 3/8"-24 threads, 3/8" holes in the balls. 52100 balls with hard chrome plating, PTFE-lined races. Static load rating around 4000 lbs. Roughly $15 for each, so a total of about $60 (2 female thread, 2 male thread). McMaster-Carr P/N 60685K111 (RH male shank) and 60685K341 (female shank).

I added stainless steel jam nuts. I had to change through-bolts, obviously... the RD ones are M10x1.5. I used grade 8 coated hex heads, McMaster-Carr P/N 91286A254. Grade 8 nylon-insert locknuts, zinc plated (McMaster-Carr P/N 97135A235). Stainless steel washers (I forget the part number, I seem to have a lot of boxes of these from other projects).

Since Randy gussetted the pickup point tabs on my trailing arms (woo woo!), I couldn't use the RD cupped washers in that end. I replaced them with 17-7 PH stainless steel ones that are the same diamater as the end of the bushing; they just fit between the gussets. McMaster-Carr P/N 91860A031.

I powdercoated the U-shaped piece, top bushing washer and the top tab reinforcement triangle in light gray.





I test fitted them tonight, they work well. Not shown in the pictures above is the parking brake cable guide, but I powdercoated the metal part of that too and it fits fine.
   Reply » replacing RD rear swaybar rod ends

Very nice! Great work.
Logical followup question: Wht type of stress testing will it undergo & what would it take to pass with flying colors?






   Reply » replacing RD rear swaybar rod ends

Looks great. Was the a quality issue with the old ones, did they fail, or is this just tinkering to make it better?

I will be up to see Randy this weekend to get the same swaybar reinforcement you have along with some other tinkering.

   Reply » replacing RD rear swaybar rod ends

To answer 2 questions at once... tinkering. The rod ends sent with the RD swaybar had softer races that were pretty ugly. The $5 type rod ends. Nothing inherently wrong with that, I'm just picky. Picture of one of the rod ends sent by RD:



As for stress testing, that'll happen on the car. I've got 2 sets of replacements should they ever fail, but I don't expect them to do that anytime soon.

   Reply » replacing RD rear swaybar rod ends

Yeah, those look like crap.
I used to work for TYEE Aircraft, they make tie rods for every type of aircraft. They make some real nice rod ends if you got the $$$$.

   Reply » replacing RD rear swaybar rod ends

BTW Turner has a trailing arm swaybar mount reinforcement kit. Adds thickness and some triangulation. Randy's is undoubtably good, just another source until he mass produces his.

BTW Randy, you never did answer about a sway bar body bracket reinfrocement kit.


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