GMC 1986 P-Truck Service Manual page 291

BENT CAGE
Cage damaged due to improper handling or
tool usage.
Replace bearing.
CAGE WEAR
Wear around outside diameter of cage and
roller pockets caused by abrasive material
and inefficient lubrication.
Clean related parts and housings.
Check seals and replace bearings.
Figure 2—Diagnosis Of Front Wheel Bearings
FRONT SUSPENSION 3C-5
BENT CAGE
Cage damaged due to improper handling or
tool usage.
Replace bearing.
INDENTATIONS
Surface d e p re ssio ns on race and rollers
caused by hard particles of foreign material,
Clean all parts and housings. Check seals and
replace bearings if rough or noisy.
B-09195