The Pedders heavy duty rear coil spring for 2004–2006 Pontiac GTO is built to ISO 9001 standards and specified with a tolerance of +/-2mm at loaded height, delivering controlled comfort, handling and load‑carrying ability. Offered as a single replacement spring, it’s intended to restore or improve rear suspension support for daily driving and heavier loads while preserving reliable dimensional accuracy and fitment for the listed model years.
Pedders 04-06 Pontiac GTO Stock Height Rear Coil Spring - Single