1981 International S Series Helper Springs
- Timbren®Rear SES Rubber Helper Spring KitInternational S1624 / S1654 / S1723 / S1724 / S1753 / S1754 /... 1981, 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