B6.1 – Gearbox Configurations
**How to convert among the 6.1 series gearbox configurations For the B6.1, B6.1D, T6.1, and SC6.1
Part Number**
Description
Lay Down 3-gear
Lay Back 3-gear
Stand Up 3-gear
Stand up 4-gear
Notes
9611
Slipper Pads, V2
✔
✔
✔
✔
25188
M3x0.5x20mm BHCS
✔
✔
✔
25215
Locknut, M3
✔
✔
✔
89202
M3x0.5x12mm BHCS
✔
✔
✔
89203
M3x0.5x16mm BHCS
✔
✔
✔
91709
B6 Chassis Braces
✔
✔
✔
✔
91716
B6 Idler Gear, 39T, Laydown
✔
Only laydown
91717
B6 Idler Gear, 26T, Standup
✔
✔
✔
91775
B6.1 Rear Ballstud Mount
✔
✔
✔
91788
B6.1 Standup Gearbox
✔
91790
B6.1 Layback Gearbox
✔
91791
B6.1 Laydown Gearbox
✔
91792
B6.1 Differential Height Inserts
✔
✔
Not in stand up
91794
B6.1 Standup Motor Plate
✔
91795
B6.1 Laydown/Layback Motor Plate
✔
✔
91798
B6.1 Standup Top Shaft
✔
91799
B6.1 Laydown/Layback Top Shaft
✔
✔
91800
B6.1 FT Direct Drive Kit
✔
✔
91801
B6.1 Slipper Spring
91803
B6.1 Slipper Hub, inner
✔
✔
91804
B6.1 Slipper Hub, outer
91813
B6.1 Gear Cover
7485
FT V2 Slipper Hub
✔
Can only run shocks on rear of arm when using this gearbox.
These parts work only with B6 gearbox
9739
Slipper Spring
✔
25187
M3x0.5x14mm BHCS
✔
91148
Locknut, M4, flanged
✔
91423
Slipper Spring Adapter
✔
91692
B6 Rear Gearbox Brace
✔
91693
B6 Rear Ballstud Mount
✔
91707
B6 Standup Gearbox, 4-gear
✔
91709
B6 Chassis Braces
✔
91710
B6 Top Shaft
✔
91711
B6 Gear Cover, 4-gear
✔
91714
B6 Standup Motor Plate, 4-gear
✔
91808
91809
91810
6.1 Spur Gears
91811, #91812 (48P spur gears compatible with all)
Pick a Chassis
Part Number
Description
Lay Down 3-gear
Lay Back 3-gear
Stand Up 3-gear
Stand up 4-gear
Notes
91765
B6.1 Chassis
✔
✔
✔
✔
All 6.1 chassis' compatible with listed gearboxes
71100
T6.1 Chassis
✔
✔
✔
✔
71120
SC6.1 Chassis
✔
✔
✔
✔