Here are all the options parts for the Xray XB4 2020 and olders
Reference 06363320
Brand: XRAY
ALU REAR LOWER SUSP. HOLDER - REAR - 7075 T6 (5MM) - 363320
Reference 06364010
Brand: XRAY
ALU MOTOR BULKHEAD - 364010
Reference 06364112
Brand: XRAY
3-PAD SLIPPER CLUTCH SHAFT - HUDY SPRING STEEL™ - 364112
Reference 06364910-G
Brand: XRAY
COMPOSITE GEAR DIFFERENTIAL CASE - GRAPHITE - 364910-G
Reference 06364911
Brand: XRAY
COMPOSITE CENTER GEAR DIFFERENTIAL ADAPTER - 364911
Reference 06364945
Brand: XRAY
ALU DIFF. BEVEL GEAR 35T - 7075 T6 HARD COATED - 364945
Reference 06364970
Brand: XRAY
CENTER DIFF OUTDRIVE ADAPTER - HUDY SPRING STEEL™ (2) - 364970
Reference 06364978
Brand: XRAY
COMPOSITE CENTER DIFF SPUR GEAR 78T / 48 - 364978
Reference 06365010
Brand: XRAY
BALL DIFFERENTIAL LONG OUTPUT SHAFT - HUDY SPRING STEEL™ - 365010
Reference 06365020
Brand: XRAY
BALL DIFFERENTIAL SHORT OUTPUT SHAFT - HUDY SPRING STEEL™ - 365020
Reference 06365035
Brand: XRAY
COMPOSITE BALL DIFFERENTIAL BEVEL GEAR 35T - 365035
Reference 06365060
Brand: XRAY
SCREW FOR EXTERNAL BALL DIFF ADJUSTMENT - HUDY SPRING STEEL™ - 365060