RAM 1500 Truck 4WD V8-5.2L VIN Y (1997)
Crankshaft: Description and Operation
GENERAL INFORMATION
A crankshaft that has undersize journals is stamped with 1/4 inch letters near the notch of the No. 8 crankshaft counterweight.
For Example: R2 stamped on the No. 8 crankshaft counterweight indicates that the No.2 rod journal is 0.025 mm (0.001 inch) undersize. M4
indicates that the No. 4 main journal is 0.025 mm (0.001 inch) undersize. R3 M2 indicates that the No. 3 rod journal and the No. 2 main journal
are both 0.025 mm (0.001 inch) undersize.
NOTE: When a crankshaft is replaced, all main and connecting rod bearings, should be replaced with new bearings. Therefore, selective fitting of the
bearings is not required when a crankshaft and bearings are replaced.
