i've been researching on multiple forums and I can't seem to find my answer. I have an 87 wrangler and it doesn't downshift at the right times. I have a metal bar which i beleive is the level to adjust just not sure how. it has two screws and an adjustable slider. Everything i read says there is a cable to adjust. I don't have a second cable just a metal linkage. Was this changed on later year YJ's? how do I adjust mine?