Manual Trans Input Shaft Seal. Manual Transmission Input Shaft Seal. National Seal/Bearing. NATIONAL SEAL/BEARING. Quantity Needed. Part Numbers. AUTOZONE/TIMKEN, BCA, COAST TO COAST AUTOMOTIVE PRODUCTS, O'REILLY PRECISION, PARTS PLUS BEARINGS & SEALS, SCHAEFFLER USA, SCHFLR CAN-DROPPING USE SCHFLR USA/FGA, TIMKEN, WJB.