Re: 1955 vs 1956 Ultramatic converter lockup.

Posted by Redhexagon On 2023/6/4 2:40:06

Thank you, Ross.

My throttle linkage is adjusted as outlined in the manual, with the carburetor link in the upper hole. My car does not have the extension kit.

I tried your driving technique and found it quite effective. I see how slowly rolling into the throttle tends to keep it in direct until you get really deep into it, and then it kicks down straight to low, while giving the throttle a quick but shallow jab just unlocks the converter. I have never seen a transmission that isn't just sensitive to throttle position, but to throttle velocity as well. I wonder how they did that in the valving?