Re: Henry's 55 Constellation

Posted by HH56 On 2009/10/22 18:03:39

The pressure switch that keeps trans from being able to shift into park, neutral or reverse when going over a few MPH.

As to converting, The PB unit itself will bolt onto any 56 trans and probably 55 also. There have been many conversions, probably most of them from PB to lever when the unit acts up & people like MrPB are not known to the owner. I have gone the other way on a couple by installing the electric unit and it is not a difficult job either way other than the work on steering column.

Also check thru the tech bulletins. There are 3 or 4 detailing the several trans differences or changes from 55-56.