Re: Ultramatic Hard Shifting into Reverse

Posted by Ross On 2017/5/31 7:01:03

Why the expense? Just grab a screwdriver and turn the idle down. That is only about an 8 second investment of your time. The only difficulty is that on a 4 bbl carb the idle speed screw points straight to the rear right next to the exhaust manifold. Awkward. In fact I usually use a small (1/4"??) open end wrench to turn it.

The fluid change is a good idea as are new servo seals; that saves a lot of pressure loss in the trans. Have never used the Packard tool in the three dozen or so of those trans I have built. The key to not loosing your band struts during this operation is to remove the servo covers and pistons but do not remove the valve body.