Composite rear gear differential and pinion gear set includes all parts necessary to build one complete gear differential. 

Alu adjustable ball differential for M18 allows you to fine-tune the handling characteristics of this already great-handling micro racecar.  

Complete composite adjustable ball differential set. Factory pre-assembled for smooth action. 

Molded composite bevel gear for 385001 Alu. Adjustable Ball Differential for the XRAY M18. 

Composite gear differential case includes upper and lower halves. Fits front or rear. 

Set of two diff rings for 385001 Alu. Adjustable Ball Differential for the XRAY M18. 

Front one-way differential for M18 allows you to fine-tune the handling characteristics of this already great-handling micro racecar. Allows for quicker steering but decreases braking performance, since only the rear wheels will brake.  

Front one-way axle unit for 385101 Front One-Way Differential for XRAY M18. Includes molded composite gear and one-way bearings. 

Precision-machined, specially-lightened outdrives for use with M18 front one-way differential #385101. Made from world-renowned HUDY Spring Steel™ for high strength and durability. Set of two. 

Molded composite front one-way bevel gear for 385101 Front One-Way Differential for XRAY M18. 

Optional 42 tooth spur gear for M18. This spur should be used for high competition racing to gain better acceleration and improved performance. 

Complete set of 16 high-quality ball-bearings, set of twelve 6x10x3 and four 12x8x3.5 ball-bearings. 

Steel balls 2.4mm for ball differential. Set of 24 pieces is enough for two ball differentials (12 each). 

Axial ball-bearing set 2.5x5.4x0.8. Includes two outer plates and high-grade polished balls. 

Carbide balls 2.4mm for ball differential. Improved, smoother diff operation over standard steel diff balls.  

High-precision axial thrustbearing for 385001 Alu. Adjustable Ball Differential for the XRAY M18. Carbide diff balls, and highest-quality materials and design guarantee the smoothest differential operation and increased life. 

High-quality ball-bearings ID x OD x thickness (mm) = 6x10x3mm. Set of 2 pieces. 

High-quality ball-bearings ID x OD x thickness (mm) = 8x12x3.5mm. Set of 2 pieces. 

Flat washer. ID x OD x thickness = 3mm x 6mm x 0.3mm. Set of 10 pieces. 

Rubber O-ring fits over 4mm shaft, 1mm thick. Set of 10 pieces. 

Polished chrome pin. Dia. x length = 3mm x 16mm. Set of 10 pieces.