Parts needed for the conversion:
Left wheel part No. 2004100004
Right wheel part No. 2004100005
Shaft/Wheel axle part No. 3004100006
Key 3/16"x30 part No. 189036 (2 pcs)
Washer part No. 3000800109 (2 pcs)
Retaining ring 15 part No. 184621 (2 pcs)
Retaining ring part No. 126504 (2 pcs)
Ask your dealer and/or service workshop to provide you with this conversion and give you the costs.