Changing Font Size

This Mopar Performance competition rear leaf spring is a serious upgrade for classic Chrysler, Dodge, Plymouth and Valiant builds where rear-end control matters. Designed in the proven Super Stock style, it helps manage torque roll and reduce axle wind-up under hard acceleration, allowing the rear suspension to work rather than bind. The result is improved traction potential and more consistent rear tyre contact in competition-style applications.

This is the left-hand spring and features a 20 inch front segment with front eye bushes already fitted to suit a 5/8 inch bolt. Depending on your model and existing spring hangers, installation may require drilling the front spring hanger and using suitable 5/8 inch hardware. As with many competition-biased leaf spring packages, it can raise the rear of most vehicles by approximately 2 to 2.5 inches, so stance and driveline angles should be checked during fitment.

This spring is best suited to performance, drag, race or dedicated off-street applications where improved launch control is the priority. It is not recommended for regular street use due to the increased ride height and competition-focused spring characteristics.

Product Features:

• Genuine Mopar Performance competition rear leaf spring
• Left-hand side spring
• Retro-fit option for listed classic Mopar models except Charger
• Super Stock style design to help control torque roll
• Assists in reducing axle wind-up under hard acceleration
• Length 55.5"
• 20 inch front segment
• Front eye bushes fitted to suit 5/8 inch bolt
• May require front spring hanger modification depending on model
• Can raise most vehicles by approximately 2 to 2.5 inches
• Competition-focused part, not recommended for regular street use