Garry , According to my manual , distance C from end of belt cover to first hole centre is 11 14" ( 286 mm ) , dimention D , distance between centres is 22 14" ( 565 mm) . Distance O from spindle to front mounting bolts centres is 2 916" ( 65mm) , and dimension N from spindlier to rear mounting bolts centres is 2 116" (52.5 mm) . Distance L from spindle to rear of belt guard is 13 12" (343mm) and distance M from spindle forwards to front of crosslide handle is 14" (350mm) maximum. Holding down bolts are 516" (8mm) diameter . Hope all above is useful . Don't forget to allow for full opening of guards . If you PM me your details I will send you this original Myford soft back book . Trevor.