The following items will work as a direct replacement

Diff Rebuild Kit
#7677 contents:
qty 1 Differential T-Nut
qty 1 Differential Bolt Cover
qty 2 Diff Thrust Washers
qty 6 Diff Thrust Balls, 5/64"
qty 1 Diff Thrust Spring
qty 2 Diff Drive Rings
qty 1 Diff Bolt
This part fits the following vehicles
- SC10
- RC10B4
- RC10R5
- RC10T4.1
- RC10B4.1
- SC10GT
- SC10B
- RC10B4.2
- RC10T4.2
- SC10.2
- RC10B5M
- RC10B5
- RC10T5M
- RC10SC5M
- RC10B6
- RC10B6D
- RC10T4.3
- SC10.3 Lucas Oil
- RC10B6 Club Racer
- SC10.3 JRT
- Reflex DB10
- Trophy Rat
- ProSC10
- RC10B6.1
- RC10B6.1D
- RC10T6.1
- RC10SC6.1
- RC10B6.1DL
- RC10B6.2
- RC10B6.2D
- DR10
- RC10T6.2
- RC10SC6.2
- SR10
- RC10B6.3
- RC10B6.3D
- RB10
- Pro2 SC10
- Pro2 LT10SW
- Pro2 DK10SW
- Pro2 RT10SW
- SR10M Dirt Oval
This part fits the following other parts
- #91421 - Ball Diff Kit
- #91702 - RC10B6 Ball Differential Kit