I recently decided to change my kart from belt driven to chain drive. I have the Peerless Differential that used to be available from Northern tool. I went on their site and found only one sprocket available that was made specifically for it with a 2.14" center bore and correct 4 bolt pattern...which is all good, except it is a 9 7/8" diameter - which is larger than the diameter of my tires... I seem to remember them offering a smaller diameter sprocket that was made for the differential but I can't find it now. Does anyone else carry sprockets for this axle?