GM 19133230
Differential

Clean the differential case components in solvent and check them for cracks, damage, escort to the bolt hole threads, unaccustomed wear, scoring and grooves in clutch pack area, scored and damaged case side bearing mounting flanges. Afterwards remove the solvent and use a soft cloth to clean the gears and the shafts thoroughly. Verify the presence of chips. Presence of cracks, pitting or heat discoloration, unusual wear or wear aside into the pin bores or side gear, wear or grooving or scoring on the side gear pin wear scored or worn side gear washers or itself wear or grooves on the output gear splines damage to ring gear threaded bolt holes or damage to the bolt holes in the ring gear and also the vehicle speed sensor reluctor ring lobes. Examine the shafts of unusual wear, grooved, worn or damaged splines, and damaged C-clip grooves. Clean the discs & plates with solvent and check them for unusual novos (wear, scoring, or grooves on the separator plate friction surfaces), uneven wear donessed friction matter on friction plates, bent or warped plates or discs, worn, scored, or collapsed bellville washer. Examine the bearing rollers and cups for pitting, scoring, grooves, severe wear, and other damage, and also look for heat discoloration, which can vary from faint yellow to dark blue reflecting overload or improper lubrication; any bearings or cups appearing discoloured by heat are to be replaced. Furthermore, check on bent bearing cages and damaged bearing cages.

Clean them with solvent and inspect for unusual wear, scoring, or grooves on the separator plate friction surfaces, uneven wear or worn friction material on friction plates, bent or warped plates or discs, and a worn, scored, or collapsed bellville washer.