I need a Hyster expert!!!. On early Hyster P60A rough terrain trucks, they used a "welded channel" upright that had problems with the channels "bowing" out. They later changed to a "formed channel" to correct that problem. I have a customer who has the welded channel upright,(mast #33094) with bowed channels. I have found a used formed channel upright (mast #201881). I have 2 questions; will the formed channel upright fit on his truck? We have checked all the measurements and they are the same. 2. His old mast has an integral side shifter and the formed channel mast has no side shifter. Will his integral side shifter fit the formed channel mast?