from start up stone cold will slip in 1st,2nd,3rd with anything over 2 thousand rpm once warmed its more 2nd,3rd gear around the 2800,3000 mark and corrects itself at 4000rpm. Funny thing if i put it into 5th and drop speed down to 30 km per hour and crack the throttle wide open there is no slip. Oil is right grade and weight. Have actually changed to diesel oil and symptoms have improved a bit.Cable is adjusted correctly, i have even given it major slop so i know its engaged and will still slip. Once i get the new plates, both steel and friction AND the heavy duty springs i'll chuck them in and see what happens.