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Fitment:
Replace leaking factory transmission lines on your 2001-2005 Chevrolet Silverado or GMC Sierra 2500/3500 Duramax with the Fleece Performance Allison Transmission Cooler Lines. Part FPE-TL-LB7-LLY is a heavy-duty, high-flow replacement line kit for LB7 and LLY trucks. The kit uses flexible 5/8-inch ID transmission hose and includes AN conversion fittings, radiator adapters, Setrab fittings, washers, and installation hardware for stock or compatible upgraded cooling-system configurations.