Check and see if the unit looks like the ones on the late R50's and 52-62's. Mud hog builds them OEM and so..... If not call 219 279-2801 Thats Fluiddrive AKA MudHog
Thank you for the phone number for Fluid Drive. I got in touch with Erin Foster...(a real nice guy)... He is going to send me a free service_ operators manual for my RWA.