AR41.10-P-0086-08GZ Correct Articulation Angle at Front on Transfer Case

AR41.10-P-0086-08GZ Correct articulation angle at front on transfer case

Modification Notes:

Check Values For Propeller Shaft Inclination Angle:

Engine Mount, Engine Support (Engine Side):

Component Identification:

The level change of the transfer case not only changes the articulation angle of the transfer case relative to the rear propeller shaft at the front (K3), but also the articulation angle of the front axle gear relative to the front propeller shaft (K1), the articulation angle of the front propeller shaft relative to the transfer case (K2) and the articulation angle of the rear propeller shaft at the front relative to the rear propeller shaft at the rear (K4). For this reason, following a correction to the articulation angle a complete check measurement must always be performed.

1 Remove reinforcement brace at left and right from transmission bracket (3) and from frame floor assembly.
2 Prop up transfer case using transmission jack and transmission platform.
3 Undo bolts for rear engine mount (2) and bolts for transmission bracket (1), then remove the transmission bracket (3).
4.1 Fabricate a transmission bracket spacer plate (6) of required thickness to match the size of the transmission bracket (3).

If the articulation angle of the transfer case relative to the rear propeller shaft at the front is to be (K3) greater.

For each 3 mm plate thickness the articulation angle of the transfer case relative to the rear propeller shaft at the front (K3) is increased by approx. 0.2 degrees. In doing so:
^ the articulation angle of the front axle gear relative to the front propeller shaft (K1) is increased by approx. 0.3 degrees,
^ the articulation angle of the front propeller shaft relative to the transfer case (K2) is reduced by approx. 0.33 degrees,
^ the articulation angle of the rear propeller shaft at the front relative to the rear propeller shaft at the rear (K4) is reduced by approx. 0.2 degrees.

At a spacer plate thickness of more than 2 mm the bolt length of the transmission bracket bolts (1) must be extended by 5 mm.

If insertion plates of more than 5 mm thickness are required, the front and rear engine mounts must be checked for signs of settling or wear and replaced if necessary.

5.1 Fabricate a rear engine mount spacer plate (7) to match the size of the transmission bracket (3).

If the articulation angle of the front axle gear relative to the rear propeller shaft at the front is to be reduced.

For each 3 mm plate thickness the articulation angle of the front axle gear relative to the rear propeller shaft at the front is reduced by approx. 0.2 degrees. In doing so:
^ the articulation angle of the front axle gear to the front propeller shaft is smaller (K1) by approx. 0.3 degrees,
^ the articulation angle of the front propeller shaft to the transfer case is greater (K2) by approx. 0.33 degrees,
^ the articulation angle of the rear propeller shaft at the front to the rear propeller shaft at the rear is greater (K4) by approx. 0.2 degrees.

At a spacer plate thickness of more than 2 mm the bolt length of the rear engine mount bolts (2) must be extended by 5 mm.

If a spacer plate with a thickness of more than 5 mm is required, the front and rear engine mounts must be checked for signs of settling or wear and replaced if necessary.

6 Insert the transmission bracket spacer plate (6) between the frame floor assembly and transmission bracket (3) or the rear engine mount spacer plate (7) between the rear engine mount and the transmission bracket (3) and install the transmission bracket (3). Tighten the transmission bracket bolts (1) and the rear engine mount bolts (2).
7 Remove transmission jack and transmission platform.
8 Install reinforcement brace at left and right.