Front Coil Spring Compressor Front Coil Spring Compressor This compressor fits most late-model rear wheel drive domestic vehicles in which the coil springs are between the upper and lower control arms. The tool features four case-hardened, self-aligning plates to ensure correct load distribution under tension. Includes two 3-3/8 ID plates and two 4 ID plates. Will not work on Mercedes-Benz vehicles. No. 7045B – Front coil spring compressor. 7045B Yes - TITANIUM DIOXIDE (AIRBORNE, UNBOUND PARTICLES OF RESPIRABLE SIZE)