The transmission will shift properly all the time into reverse, but when I shift into forward, I have to go to full governed rpm and fwd will catch after about 5-10 secs. It seems to stay engaged in fwd as long as the shifter is in fwd position. I changed the fluid. What should the pressures be at the transmission ports marked "R", "M", and "C"? I'm trying to find out if it's the valve body or the fwd clutch pack.