Here are all the options parts for the Xray T4 2018 and olders
Reference 06305878
Brand: XRAY
OFFSET SPUR GEAR 108T / 64 - 305878
Reference 06305882
Brand: XRAY
OFFSET SPUR GEAR 112T / 64 - 305882
Reference 06305928
Brand: XRAY
NARROW ALU PINION GEAR - HARD COATED 28T / 48 - 305928
Reference 06308029
Brand: XRAY
ULP ALU PROGRESSIVE SHOCK SYSTEM - SET (2) - 308029
Reference 06308277
Brand: XRAY
XRAY 4S SPRING-SET C=2.9 (2) - 308277
Reference 06308286
Brand: XRAY
XRAY 4S SPRING-SET C=2.6 (2) - 308286
Reference 06308323
Brand: XRAY
T4 ALU SHOCK BODY (2) - 308323
Reference 06309854
Brand: XRAY
PRECISION BALANCING CHASSIS WEIGHT CENTER 30 G - 309854
Reference 06930120
Brand: XRAY
CARBIDE BALL 2.4MM FOR BALL DIFFERENTIAL (12) - 930120
Reference 06963030
Brand: XRAY
CONE WASHER ST 3x8x0.5 (10) - 963030
Reference 06306410
Brand: XRAY
ALU UNIVERSAL MOUNT - 306410
Reference 06305138
Brand: XRAY
SOLID AXLE ECS BB DRIVESHAFT ADAPTER (2) - 305138