Section 1586 (G56 Manual Transmission - (Service Information) - 2500 Hd): Assembly: 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.
- Position mainshaft in Fixture (special tool #9605, Fixture) mounted in vise.
- Install second gear bearing (1) on mainshaft (2).
- Install second gear (1) on mainshaft (2).
- Install second gear stop ring (1) with teeth pointing up on second gear (2).
- Install second gear inner friction ring (1) on stop ring (2).
- Install second gear outer friction ring (1) on stop ring (2).
- Install second gear blocker ring (1) on stop ring (2).
- Install 1-2 synchronizer hub (1) on mainshaft and synchronizer rings (2).
- Install 1-2 synchronizer hub (1) and hub snap ring (2).
- Install 1-2 synchronizer sleeve (3) on the hub (2) and push sleeve to the bottom of the hub.NOTE:
1-2 synchronizer sleeve (3) and hub (2) have one small tooth. They must be aligned to install synchronizer sleeve (3) on hub (2).
- Install 1-2 synchronizer detents and springs (1) into synchronizer hub (2) slots. Then push detents behind synchronizer sleeve (3).
- Install first gear blocker ring (1) on synchronizer hub (2).
- Install first gear outer friction ring (1) on synchronizer hub (2).
- Install first gear inner friction ring (1) on synchronizer hub (2).
- Install first gear stop ring (1) with teeth pointing down on synchronizer rings and hub (2).
- Hold first gear stop ring (1) on synchronizer rings (2) and center 1-2 synchronizer sleeve on the hub.
- Install first gear (1) and bearing (2).
- Heat thrust washer (1) and reverse gear bearing race (2) on bearing heater to a maximum of 150 Celsius (300° Fahrenheit).
- Using welding gloves or tongs, install thrust washer (2) and reverse gear bearing race (1) on mainshaft.
- Install reverse gear (1) and bearing (2).
- Install reverse gear inner friction ring (1) on reverse gear (2).
- Install reverse gear outer friction ring (1) on inner blocker ring (2).
- Install reverse gear blocker ring (1) on friction ring (2).
- Install reverse gear synchronizer hub (1) with snap ring (2) on the top on mainshaft.
- Heat mainshaft bearing (1) on bearing heater (2) to a maximum of 150 Celsius (300° Fahrenheit).
- Using welding gloves or tongs, install mainshaft (1) bearing (2) on mainshaft.
- On 4x4 transmission install mainshaft (1) bearing (2) snap ring.
- Install reverse synchronizer hub (1) detents (2).
- Install reverse gear (2) synchronizer sleeve (1) on hub and center sleeve on hub.
- Turn mainshaft and Fixture (special tool #9605, Fixture) over and secure in vise.
- Install third gear bearing (1) on mainshaft (2).
- Install third gear (1) on mainshaft (2).
- Install third gear stop ring (1) with teeth pointing up on third gear (2).
- Install third gear inner friction ring (1) on stop ring (2).
- Install third gear outer friction ring (1) on stop ring (2).
- Install third gear blocker ring (1) on stop ring (2).
- Install 3-4 synchronizer hub (1) on third gear synchronizer rings (2).
- Install third gear synchronizer hub (1) snap ring (2).
- Install 3-4 synchronizer sleeve (3) on hub (2) and push sleeve to the bottom of the hub.NOTE:
3-4 synchronizer sleeve (3) and hub (2) have one small tooth. They must be aligned to install synchronizer sleeve (3).
- Install 3-4 synchronizer detents and springs (1) into synchronizer hub (2) slots. Then push detents (1) behind synchronizer sleeve (3).
- Install fourth gear blocker ring (1) on synchronizer hub (2).
- Install fourth gear outer friction ring (1) on synchronizer hub (2).
- Install fourth gear inner friction ring (1) on synchronizer hub (2).
- Install fourth gear stop ring (1) with teeth pointing down on synchronizer hub (2).
- Hold fourth gear stop ring (1) on synchronizer hub (2) and center 3-4 synchronizer sleeve on hub.
- Install fourth gear (1) and bearing (2).
- Heat fourth gear thrust washer (1) on bearing heater (2) to a maximum of 150 Celsius (300° Fahrenheit).
- Using welding gloves or tongs, install fourth gear (1) thrust washer (2).
- Install fourth gear (1) snap ring (2).
- Install sixth gear (1) and bearing (2) on mainshaft (3).
- Install sixth gear stop ring (1) on sixth gear (2).
- Install sixth gear friction ring (1) on stop ring (2).
- Install 5-6 synchronizer hub (1) on sixth gear synchronizer rings (2).
- Heat mainshaft bearing (1) on bearing heater to a maximum of 150 Celsius (300° Fahrenheit).
- Using welding gloves or tongs, install mainshaft bearing (1) on mainshaft.
- Install mainshaft bearing (1) snap ring (2).
- Install 5-6 synchronizer sleeve (1) on hub (2) and push sleeve to the bottom of the hub.
- Install 5-6 synchronizer detents and springs (1) into synchronizer hub (2) slots. Then push detents behind synchronizer sleeve (3).
- Install fifth gear friction ring (1) onto hub (2).
- Install fifth gear blocker ring with teeth pointing down (1) onto hub (2).
- Hold fifth gear blocker ring (1) onto hub (2) and center 5-6 synchronizer sleeve on hub (2).