This is a HD steel reversed-cut helical triangular keyed gear set made for the rear axle of BRX01. It has the AR44 style ring/pinion gear and locker but with a flipped diff design.

Hardened steel 30T/8T helical bevel gear and input shaft and differential locker (spool) set.

Suitable for counter-rotating drivetrain with opposite spinning direction center driveshafts.

Features:

• Hardened steel gears for maximum strength and durability, increased weight in the axle
• Keyed spool to increase structural strength and to eliminate the weakness of the three M2.5 screws
• Tight tolerance of the diff locker and the axle shaft
• Tight tolerance of the bevel gear and input shaft to increase efficiency in the drivetrain

Includes:

• 1x Reverse Cut Triangular Keyed HD Steel Bevel Gear 30T
• 1x Reverse Cut HD Steel Input Shaft 8T
• 1x Keyed HD Steel Differential Locker (Spool)
• 3x M2.5 hardware

Will fit:

• Boom Racing BRX70/BRX80/BRX90 PHAT Axle (Note: must be black color Third Member which fits reverse axle gear, red color Third Member will not fit)
• AR44 style ring/pinion gear and locker with flipped diff feature

Will not fit

• Stock AR44 axle housing

Bearing Size:

• D7x14x3.5 #BBZ687OPEN x2 (not included)

Replacement parts:

30T Main Gear

8T Input Shaft

Spool