1980 Mack Midliner Series Helper Springs
- Timbren®SES Rubber Helper Spring KitMack Midliner Series 1980, SES Rubber Helper Spring Kit by Timbren®. This SES Suspension Upgrade fits the rear suspension truck. Each laser cut piece of steel is precision bent and powder-coated to ensure a quality fit. Engineered...Improves ride and handlingEliminates trailer sway and roll$496.65 - $1,428.36