type of fluid leaking will determine which seal needs
to be replaced. If the fluid leaking is red in color
(transmission fluid) this indicates that the Transmis-
sion differential carrier seal should be replaced. If
the fluid leaking is light brown (gear lube) this indi-
cates that the Power Transfer Unit input seal should
be replaced. For replacement of these seals refer to
Power Transfer Unit Service Procedures.

If fluid is leaking from weep hole B (Fig. 5) the

type of fluid leaking will determine which seal is

1 - PLUG

18 - CASE-PTU

35 - SHIM

2 - WASHER FLAT

19 - PINION-PTU

36 - TAPERED ROLLER BEARING

3 - SEAL RING

20 - O-RING

37 - SHAFT ASSY. FRONT L.H.

4 - SNAP RING

21 - SHIM

38 - SEAL RING

5 - BALL BEARING

22 - TAPERED ROLLER BEARING

39 - OIL WIPER

6 - SEAL RING

23 - COVER-PTU CASE REAR

40 - RETAINER DIFFERENTIAL BEARING

7 - COVER-PTU
CASE END

24 - FLANGE TUBE-PTU-OUTPUT ASSY.

41 - SHAFT DIFFERENTIAL PINION

8 - TAPERED ROLLER BEARING

25 - LOCK NUT-HEX FLANGE

42 - PIN

9 - SEAL RING

26 - O- RING

43 - CASE DIFFERENTIAL

10 - SEAL RING

27 - RETAINER PLATE

44 - TAPERED ROLLER BEARING CONE

11 - HEX HEAD SCREW

28 - O-RING

45 - SEAL RING

12 - SHAFT-PTU INPUT

29 - BRACKET

46 - SEAL RING

13 - GEAR-PTU RING

30 - THRUST WASHER

47 - PLUG

14 - TROUGH-PTU (RT.)

31 - SIDE GEAR-DIFFERENTIAL

48 - O-RING

15 - TROUGH-PTU (LT.)

32 - FINAL DRIVE GEAR

49 - SHIM

16 - TAPERED ROLLER BEARING

33 - PINION DIFFERENTIAL

50 - MAGNET

17 - HEX HEAD SCREW

34 - WASHER DIFFERENTIAL PINION

51 - DOWEL
52 - SHAFT ASSY. FRONT R.H.
53 - HEX HEAD SCREW

Fig. 1 Seal

1 - INPUT SHAFT
2 - P.T.U. CASE
3 - MAGNET
4 - INPUT SHAFT END SEAL
5 - OUTPUT SHAFT
6 - RING GEAR
7 - REAR COVER

Fig. 2 Seal Location

1 - REAR COVER
2 - END COVER
3 - OUTER HALFSHAFT SEAL
4 - P.T.U. CASE
5 - P.T.U. OUTPUT SEAL

POWER TRANSFER UNIT

21 - 3

POWER TRANSFER UNIT (Continued)

leaking. If the fluid leaking is red in color (transmis-
sion fluid) this indicates that the input shaft end seal
should be replaced. If the fluid leaking is light brown
(gear lube) this indicates that the half shaft inner
seal and P.T.U. input shaft cover seal should be
replaced. For replacement of these seals refer to
Power Transfer Unit Service Procedures.

Before condemning any seal or gasket be sure that

the rear rocker arm cover on the engine is not the
cause of the oil leak. Oil leaking from the rocker arm
cover is easily mistaken for a leaking Power Transfer
Unit.

STANDARD PROCEDURE

STANDARD PROCEDURE - FLUID LEVEL
INSPECTION

(1) Raise vehicle on hoist.
(2) Remove PTU inspection plug (Fig. 6).

(3) Fluid level should be within 3/16” from bottom

of inspection hole. Add Mopar

t Gear and Axle Lubri-

Fig. 3 Seal Location

1 - INPUT SHAFT
2 - OUTPUT SHAFT
3 - REAR COVER
4 - P.T.U. CASE
5 - INPUT SHAFT SEAL

Fig. 4 Seal Location

1 - P.T.U. INPUT SHAFT COVER SEAL
2 - HALF SHAFT INNER SEAL
3 - INSIDE VIEW OF P.T.U. END COVER

Fig. 5 Weep Hole Locations

1 - ENGINE OIL PAN
2 - WEEP HOLE “A”
3 - TRANSAXLE CASE
4 - P.T.U.
5 - WEEP HOLE “B”

Fig. 6 Inspection Plug

1 - INSPECTION PLUG

21 - 4

POWER TRANSFER UNIT

POWER TRANSFER UNIT (Continued)

Content .. 993 994 995 996 ..