Remanufactured from Weller, the Allison 3500RDS transmission delivers smooth shifting, dependable power transfer, and long-lasting durability for medium- and heavy-duty trucks and vocational applications. Built to OEM Allison standards, this model features multiple forward speeds, advanced electronic controls, and a rugged design engineered for reliable performance under demanding conditions. With Weller’s precision remanufacturing process, the 3500RDS helps fleets reduce downtime, extend service life, and maintain consistent productivity mile after mile.