Transfer oil seal (RH) No. 1

Remove the front drive shaft (RH). (Refer to FRONT DRIVE SHAFT REMOVAL/INSTALLATION .)
Insert a flathead screwdriver into the notch of the transfer and remove the oil seal (RH) No. 1.

Fig 1: Removing Oil Seal (RH) No. 1
Courtesy of MACK TRUCKS, INC.
Install the new transfer oil seal (RH) No. 1 projection to within the range shown in the figure. (with projection type only)

Fig 2: Checking Transfer Oil Seal (RH) No. 1 Projection Within Range
Courtesy of MACK TRUCKS, INC.
Using the SST and a hammer, tap the new seal into place.

Fig 3: Tapping Seal Into Place Using SST And Hammer
Courtesy of MACK TRUCKS, INC.
Coat the lip of the oil seal with transfer oil.
Install the front drive shaft (RH). (Refer to FRONT DRIVE SHAFT REMOVAL/INSTALLATION .)