Re: Ultramatic shifting index

Posted by Randy Berger On 2007/8/27 12:03:08

Memory says there are three things that could be at fault.
1. The adjustment bolt that threads into the back of the shifting unit is loose. This can be checked visually by lying under the car and having someone inside go thru the range of buttons. If you see the whole mechanism move then the bolt needs tightened AFTER you again get it in sync with the transmission. Do NOT overtighten as you are tightening die-cast potmetal and you do not want to strip the threads.
2. The bolt that tightens up the sector gear to the shaft lever is loose and not moving the shaft when the sector gear turns. Remove the two screws from the inspection plate and observe the shaft and bolt while someone goes thru the range of buttons.
3. The internal bolt that tightens up the diecast piece that connects to the internal valve is loose allowing the shaft to turn but not moving this diecast link which is connected to the manual valve by a split rivet. I mention this procedure last because you have to drop the tranny pan to observe this function. Be CAREFUL and do not overtighten this bolt as you are tightening against diecast potmetal, not steel.
4. If you find any of these conditions you will have to resync the mechanism with the transmission. I have always put the mechanism in PARK and then moved the mechanism to put the trans in PARK. Then I tighten the adjustment bolt that holds the mechanism in proper position.
Good luck and let us know what you find.