I have a 1989 ranger with the mazda m5od-R1 transmission and when I shift into reverse as soon as i release the clutch it grinds and pops out, and it will not shift into 5th at all. I am thinking it is a linkage problem on the basis that on a front wheel drive transmission the linkage for horizontal movement of the shifter has to be in the same location to shift into 5th or reverse, but i havn't done any work on rear wheel drive transmissions. I took off the shifter but i don't know where to go from there. Can anyone help me out?