Alright I've got an 86K5 with a 305 in it. I have no idea as to what tranny is. The motor runns great but the tranny is acting all weird. It'll shift into first and second just fine but wont go to third of fourth. I've already toyed around with the tv cable and all that did was made it shift smoother. Any idea's as to what could be causeing this? P.S. the fluid level is good as well.