Main Bearings Set for 89-08 Ford F150 Freestar Lincoln Mercury 3.8L 3.9L 4.2L For Chevy Chra General Motors: 1135278

General Motors: 1135278

1 Hydraulic Tensioner (is not included)

8E0501521F

1 Crank Sprocket (18 teeth single row)

Main Bearings Set for 89-08 Ford F150 Freestar Lincoln Mercury 3.8L 3.9L 4.2L For Chevy Chra General Motors: 1135278King Main Bearings Fits 89 08 Ford F150 Freestar Lincoln Mercury 3. 8L 3. 9L 4. 2L. The crankshaft, connecting rods and bearings are extremely important in every engine build, because they convert the reciprocating motion of the pistons into rotational torque. The longer the stroke, the greater the leverage effect and the greater the torque output of the engine. Time will come that your engine bearings will wear out. Always remember, when your engine