1986 Mack Midliner Series Helper Springs
![Semi Truck Helper Springs](https://ic.truckid.com/semi-truck/pages/air-suspension-parts/semi-truck-air-suspension-parts_collage_0.jpg)
- Timbren®SES Rubber Helper Spring KitMack CS200P Mid-Liner / CS250P Mid-Liner / CS300P... 1986, 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...Improves ride and handlingEliminates trailer sway and roll$496.65 - $1,428.36