Please check notes in each part listing to ensure the Input Shaft Thrust Bearing is correct for your 1980 FORD F-250 with a 4.9L 300 engine. TIMKEN & NATIONAL are competing brands, and each brand's Input Shaft Thrust Bearing may be interchangeable. Special restrictions like "California only" or "with sport package" may indicate a Input Shaft Thrust Bearing fits only certain 1980 FORD F-250 models.

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