I am looking for a bell housing for a new style Kubota B7100 HST-D. It is Kubota part number 66904-51100 OR 66904-51103. Basically it is the bell housing and tunnel that connects the engine to the transmission. It will be GRAY in color opposed to the pale blue color of the older B 7100 model. THANK YOU in advance for taking the time to read this request. 