The 68RFE is Chrysler's 6-speed behind the 6.7 Cummins. Notorious for valve body solenoid failures and overdrive clutch burn-out. Cummins-truck customers are LOYAL and buy fleet-volume rebuilds. Stock these parts and you become THE 68RFE shop in your area.
Individual solenoid replacement on a 68RFE is a comeback waiting to happen. Replace the full Borg-Warner-spec solenoid block as an assembly. The unit comes back fresh.
View on ShopifyStock OD clutch lasts ~75K miles in fleet/towing use. HD upgrade with more friction surface area pushes it past 150K. Standard upgrade on every 68RFE rebuild behind a Cummins.
View on Shopify68RFE valve body bores wear at 100K+. Sonnax sleeve kit restores the bore + installs HD valves. Solves shift quality issues that persist after solenoid replacement.
View on ShopifyStock 68RFE cooler is undersized for sustained Cummins towing. Aux cooler + filter loop is mandatory if the truck pulls anything. Skip this and the rebuild is back in 18 months.
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Master Rebuild Kit (Your Transmission) on Amazon →Filter & Gasket Service Kit on Amazon →Shift Solenoid Set on Amazon →Replacement Torque Converter on Amazon →Transmission Assembly Lube (16oz) on Amazon →