K-Member / Rack & Pinion Steering Suggestions

Yeah, you've missed the point.

QA1 didn't use CAP's coilover conversion or rack at all, and made some changes to their torsion bar K frame. And yes, from a fabrication standpoint CAP was crap. But if you're buying a company, a company with a few good designs (LCA's, strut rods) and bad fabrication is a good choice, especially if you're going to fully take over production. The crappy weld issue was totally solved the minute QA1 bought them out, as they have great fabrication/production. CAP may have been in your back yard, but I ran their UCA's, LCA's, and strut rods on my Challenger. I still run their strut rods, as there is literally no welding in their construction and they're a sound part (70k street miles on them without a hiccup). I had no issues with their UCA's, although I saw the failures and don't run them anymore. And I had a weld crack on one of the LCA's, although honestly that was over 50k miles in.

But even having had one of the CAP LCA's fail, I have no issue running the QA1 LCA's on my Duster because the welding issues were solved. It's also how I know the design of those parts didn't change, I can hold them up side by side with the CAP parts.

And again, all of that misses the point. QA1 is buying the designs and then re-working them for production. Buying CAP, keeping their designs and losing the CAP name/reputation is a great move for a company, they get the designs cheap. And yeah, the QA1 versions of those parts are great. Gerst is the same thing all over again. QA1 will fix some of the fabrication issues and have a great part that will be ready to compete with RMS, and you, as soon as it hits production. Given the size of QA1 and their distribution they will be formidable. Like, I can go on Summit right now and put in an order for their full conversion, super easy.

1974 PLYMOUTH DUSTER QA1 52343-S400 QA1 Mopar Front Street Performance Coilover Conversion Systems | Summit Racing

And yeah, it looks like they already fixed the uprights
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If you believe buying poor engineering and copied designs is a good thing....then Qa1 might have a position for you!