2012 International DuraStar Helper Springs
- Timbren®Rear SES Rubber Helper Spring KitInternational 4100 DuraStar / 4300 DuraStar / 4300LP DuraStar /... 2012, Rear 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...Improves ride and handlingEliminates trailer sway and roll$667.05 - $1,428.36