LEGO Set MOC-3730 - Truck T14 KrAZ 255B 6x6 (Yellow).
This additional parts list enables you to convert your current build into this Trial Truck. There is no need to buy extra instructions, the instructions for this conversion are included in LEGO Set MOC-3730!
For those who might wonder why this is listed separately:
Having this separate parts list allows builders to buy only the parts needed to build the configuration that suites them best. To have all parts lists combined would force people to buy unwanted parts...