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1955 Oldsmobile, shifts not up with Hydramatic

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Hi to all,


after restoring our 1955 Oldsmobile Super 88 with Hydramatic ( was not on the street for 20 years ), I had the problem, that the transmission went into reverse as it shall, but not into a forward gear. After shifting lots of times, this problem is solved. So I went on the street. But.., there was no shifting up. I browsed through the shop manual at the trouble shooting but found not exact my problem. Just : Transmission operates only in 2nd speed ( DR range ) or only in 3rd and 4th speeds. As a cause stands there : Sticking valves in inner valve body or governor. And as correction : Completely disassemble and inspect valve body assembly and governor assembly.

Has someone an other idea or is this the way I have to go? And does this mean, that I have to remove the transmission?


Kind regards



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