Savana 1/2 Ton Van V8-5.7L VIN R (2001)
Heat discoloration ranges from faint yellow to dark blue. This discoloration results from overload or an incorrect lubricant. Excessive heat causes
softening of the races or the rollers. In order to check for loss of temper on the races and the rollers, perform a file test. A file drawn over a tempered
part will grab and cut the metal. A file drawn over a hard part will glide readily with no metal cutting. Replace the bearings if overheating damage is
indicated. The tempered part will fail the file test. Check the seals and the other related parts.
Misalignment
A misaligned outer race due to a foreign object. Clean the related parts. Replace the bearing. Ensure the races are properly sealed.
Cracked Inner Race
Cracked race due to improper fit, cocking, or poor bearing seats. Replace the bearing. Correct bearing seats.
Fatigue Spalling