Whiteline W53152 Front Radius Arm to Chassis Lock Washer Kit - Heavy Duty Suspension Upgrade for Off-Road Trucks & SUVs - Improves Handling & Stability on Rough Terrain

These adjuster washers and nuts were necessary to get my Pontiac G8 GT back up to sufficient caster angles after replacement of a lower control arm. From the factory, there is only a small area of adjustment built into the suspension of these cars. My alignment tech was not able to get enough caster one either side, with one side nearly vertical! I drove the car for a week or two while waiting for these adjusters, and with such little caster angle, the car felt really bad; no recall to center, dancing around on straight roads, a real handfull to keep on line in corners, etc.. Now the car feels great! My tech says there's even more adjustment available if, say I went for a plus 1 tire next time, it's got enough to keep em planted.