For DF64V please note if you need replace upper burr carrier please consider getting a collar too so that we can lubricate it for you and it fits nicely. It is mandatory to lubricate the metal threads of your upper burr carrier before placing onto the grinder or it might case damage. Choose the model of upper burr carrier correctly. Prices are slightly discounted if you purchase with a grinder. You will be requested payment plus additional 10USD Admin fee, if you select the free shipping and do not have a grinder in your order. Please key in your delivery address in billing address blanks in checkout.