The SPC’s from
@BergmanAutoCraft are the best out there, double adjustable and not that more expensive than the others. Plus they still have bushings for the street cars.
I have a picture of the modifications they were doing for the road race TransAmerica cars, I’ll dig that out and post it
Do they have a problem with aftermarket UCA’s though? Because the Hotchkis arms are welded. So are the QA1’s, even the SPC’s have welds around the ball joint sockets.
The weld isn’t so much the issue, it would just be the execution