18003 – Crankshaft Kit – 4.3L L6 4278cc 261ci, 3.8L L6 3852cc 235ci, 3.9L L6 -cc 235ci, 3.9L L6 -cc 236ci

4.3L L6 4278cc 261ci Casting# 3701488; Crankshaft is packed with dowel-type main bearings.; 3.8L L6 3852cc 235ci ; 3.9L L6 -cc 235ci ; 3.9L L6 -cc 236ci ;