[SRGN]

I used the GW aluminum ones on one my first gens, they worked and didn't slide. On a second gen I set up for a friend for autocross, we actually used no bushings, bolted the frame up, and welded the frame to the body. Dropped the car almost an inch with no change in geometry. Fabricated frame connectors, and really stiffened up the whole car. I've never had a subframe shift unless it hit something, I use the torque specs for whatever bushings are installed.