Kawasaki KZ1300 A Series 1979-On. Motorcycle Final Drive Differential. Final drive is good and useable. Channel Islands Guernsey/Jersey £39.99. Northern Ireland £14.99 Isle of Man £19.99. If you feel that the pictures supplied don't show enough, or you need more information about a part then you may not be alone and we can add pictures or information to help make a decision to buy.