Laserjet 4p transfer roller bushing clarification

[printer321]

The transfer roller on the laser jet 4p is held in place by a right and left side transfer assembly mount. Both mounts have a plastic bushing or insert that holds the transfer roller in place. The parts diagram for the 4p lists a bushing RB1-3073-000CN that either fits into the transfer roller assembly mount or is a type of clip that fits into the transfer guide itself. I can't tell by the diagram. I need the clip that is inserted into the right transfer assembly mount so do I need to order the bushing RB1-3073-000CN, or do I need to order a complete assembly mount RG5-0675-000CN to get the bushing?

[MichaelTech]

Rg5-0675 is the right mount. Rg5-0674 is the left.
This is my old original manual, so check PartSurfer for a newer #.

[printer321]

Does the RB1-3073-000CN bushing for the laserjet 4P fit in the transfer roller assembly mount or clip into the transfer guide itself? My original HP manual is not clear on this in the diagram or schematic.