Front Differential Carrier Bearing Cup Replacement - Case Side

Fig 1: Identifying Front Differential Carrier Bearing Cup

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
1	Front Differential Bearing Cup CAUTION: Support the back side of the case before installing the bearing cup. Apply a light coating of transmission fluid to the bore before pressing the cup into position. Install the bearing cup until it stops moving. Applying excessive pressure to the bearing cup once it is seated could cause damage to the case casting. CAUTION: An unseated or improperly installed bearing cup will result in premature bearing failure. Visually inspect the bearing cup to insure there isno gap between the case, thrust washer, and the bearing cup. Use of a feeler gauge may assist in identifying a bearing cup that is not fully seated. CAUTION: Failure to apply the lubricant will cause damage to the bolt and nut threads. CAUTION: There are first and second design front differential bearing cups. First design bearing cups are manufactured by Timken. Second design bearing cups are manufactured by NSK. Second design bearing cups require DT-45087-A cup installer. If installing second design bearing cups, second design front differential carrier bearings must be used. All four parts must be kept as a set to prevent damage to the transmission. NOTE: Tighten DT-47927-2 which is part of DT-47927 cup remover until it fits snugly on the bearing cup. Adjust DT 45124 removal bridge so it sits on the torque converter housing surface just beyond the bearing cup opening. Apply the extreme pressure lubricant DT 23444-A extreme press lubricant to the puller bolt threads to prevent damage to the bolt threads during bearing cup removal. Hold the puller bridge bolt and turn the nut to remove the bearing cup. Special Tools DT 23444-A Extreme Press Lubricant-1/4 Ounce Tube DT-45087 Bearing Cup Installer DT-45087-A Bearing Cup Installer DT 45124 Removal Bridge DT-47927 Bearing Cup Remover For equivalent regional tools, refer to Special Tools .

Callout

Component Name

Front Differential Bearing Cup

CAUTION:

Support the back side of the case before installing the bearing cup. Apply a light coating of transmission fluid to the bore before pressing the cup into position. Install the bearing cup until it stops moving. Applying excessive pressure to the bearing cup once it is seated could cause damage to the case casting.

CAUTION:

An unseated or improperly installed bearing cup will result in premature bearing failure. Visually inspect the bearing cup to insure there isno gap between the case, thrust washer, and the bearing cup. Use of a feeler gauge may assist in identifying a bearing cup that is not fully seated.

CAUTION:

Failure to apply the lubricant will cause damage to the bolt and nut threads.

CAUTION:

There are first and second design front differential bearing cups. First design bearing cups are manufactured by Timken. Second design bearing cups are manufactured by NSK. Second design bearing cups require DT-45087-A cup installer. If installing second design bearing cups, second design front differential carrier bearings must be used. All four parts must be kept as a set to prevent damage to the transmission.

NOTE:

Tighten DT-47927-2 which is part of DT-47927 cup remover until it fits snugly on the bearing cup.
Adjust DT 45124 removal bridge so it sits on the torque converter housing surface just beyond the bearing cup opening.
Apply the extreme pressure lubricant DT 23444-A extreme press lubricant to the puller bolt threads to prevent damage to the bolt threads during bearing cup removal.
Hold the puller bridge bolt and turn the nut to remove the bearing cup.

Special Tools

DT 23444-A Extreme Press Lubricant-1/4 Ounce Tube
DT-45087 Bearing Cup Installer
DT-45087-A Bearing Cup Installer
DT 45124 Removal Bridge
DT-47927 Bearing Cup Remover

For equivalent regional tools, refer to Special Tools .