I am about to install an L-9 holding valve on a 444 serial#9710071. After cutting and removing the remainder of the 90 degree fitting in the top port of the hydraulic drive motor I will need to install a straight 7/8" o-ring to 5/8" tube fitting to attach the steel tube to the h-draulic motor port. Is there a "name" for this type of fitting or adapter and where to purchase? Also has anybody found an easier way to cut the elbow other than a hacksaw?. Thank you for any information.