Bush  (B311-1526) (10-979 conflict)

1800 Gearbox lead screw output 76745
1800 Gearbox mid shaft feed output 76750
2000 Gearbox mid shaft feed output  76748

2000 Gearbox top front shaft   76729
2000 Gearbox top lead screw output   76745
2000 Gearbox mid shaft feed output  76750

2500 Gearbox top front shaft   72248
2500 Gearbox top lead screw output   72245
2500 Gearbox mid shaft feed output  no ref

Used to stabilise gearbox input and output shafts