wmmack1952

Hey guys need help, I have a1971 dm 600 that has a wet clutch air activated system in it, parked the truck 5 years ago was running fine, started it up last week for first time in 5 years can't get it to go in gear, I can get it to go in gear if I force it but the truck wants to move, tried to adjust clutch linkage on side of bell housing, need to know how to adjust that clutch , also what kind of oil goes in it, would really appreciate some help, thanks guys Bill