Drive Axle R and R

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Dissecting the Drive Axle

The drive axle is the one that directly drives the chain and sprocket, in the picture to the right the shiftfork journals are indicated. The yellow arrows show the movement the shiftforks make on the gears, gears that move with the shiftfork are splined - any force put on them will be output on the main axle. The remaining gears ride on bearings (oiled collars) and are not splined. These gears are engaged by the "engagement dogs" incorporated in the the splined gears when they move into the free spinning gears. This is the assembly where the trouble lies. The second gear from the left is the 4th gear wheel. In the picture you can see its engaged with the 2nd gear to its right, at this point we can see anything wrong.

Click here for commented view

Rollover image

In the picture to the left we can see the damage by lifting the 4th gear wheel upwards, the crown on the shiftfork journal is almost gone, it took all the engagement dogs with it or was it the other way around? Rollover the image to see the damaged shiftfork that was trying to hold everything together, the shiftfork was thoroughly trashed with alot of heat "blueing"

Position the Drive Axle like the picture to the right, all the parts come off the right side.

Remove the 1st gear wheel.

Remove the 2 washers, they lock together - pull the first one off, then turn the remaining washer so it lines up with the splines and remove it.

Remove the 2nd gear wheel