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Performance Upgrades - Maintenance - Modifications - Problem Solving - Off-Road - Street Trucks. Covering the Explorer, ST, Sport, Lincoln Aviator, Sport Trac, Mercury Mountaineer, Mazda Navajo, Ford Ranger, Mazda Pickups, and the Aerostar. Featuring H.I. - Human Intelligence.
So while putting timing chains in my 4.0 SOHC I got to the point of every 4.0 when you install a new rear main because it seems like these things go every 100k miles. But when I did I ran into this seal and it looks nothing like the others I've seen. It's got the metal thing around the crank...
