Section 1586 (G56 Manual Transmission - (Service Information) - 2500 Hd): Adjustments: MAINSHAFT
WARNING: This page is about a different car, the 2017 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
- Set mainshaft, input shaft and countershaft into the rear housing. Rotate the shafts to seat bearing in rear housing.
- Remove mainshaft bearing cup, shims and oiler washer from the front housing.
- Position Measurement Fixture (special tool #9592, Fixture, End Play) (1) on front housing over the mainshaft bearing cup bore.
- Loosen the knob (2) on the fixture and lower the shaft onto the mainshaft bearing cup (3) bore shoulder. Then tighten the knob to hold the shaft.
- Remove the fixture from the front housing.
- Place mainshaft shaft bearing cup on mainshaft bearing.
- Position Fixture (special tool #9592, Fixture, End Play) (1) on rear housing over the mainshaft bearing (2).
- Loosen the knob (3) on the fixture (1). This will allow the rod plunger to drop down on the bearing cup.
- Measure the gap (1) between the fixture shaft (2) and the fixture plunger (3). Repeat measurement on the opposite side of the mainshaft cup and bearing. The average of the two measurement, will be the size of the mainshaft select shim.
- Install new oil supply washer and select shim in front housing mainshaft bearing cup bore and install bearing cup.