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BH wrote:
Gator -
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I'm emphasizing band adjustment because you seem to think there's an unusual drag and it's comparatively easy to check. I seem to recall that band adjustment was part of routine dealer service on GM trannies back in the 60s/70s. Yes, it's hard to say what was done to this poor old trans in the 50+ years since the Packard dealer network and factory-trained serviceman began to evaporate. Yet, even if either one or both bands are at fault, there may be more to the story than mere adjustment.
It's not so much drag as much as it is "creep". I don't know if slight creep is acceptable or if there should be none at all or if it's just enough to keep it from locking into DD...I'm just laying out a plan to eliminate the candidates one at a time. You're right about the past life of the tranny. Lack of trained professionals giving it the attention it needed not to mention the poor roads and driving conditions that the old gal's been exposed to. This one's supposed to have 49,000 original miles on it and that may be true but considering that back in the 50's, we didn't have near as many paved roads as we do now so I'm sure it's had a few rough rides. Evidence also suggests that she was exposed to her fair share of dirt roads and considering the region of the country that it came from, some areas of steeply inclined roads as well so it's anyones guess as to how hard or easy it was driven and how little or well it was maintained by any number of previous owners. Considering what they've been through, it's quite amazing that we still have as many surviving Ultramatics gracing our presence as there are. All I can say Hats off to the pioneering engineers of cutting edge automobile technology...
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BTW, you might wanna soak the band adjusting screw locknuts with a good penetrating oil, several minutes in advance.
Report back with your findings and one of us will try to advise you with the next steps.
I will certainly do both BH, and a sincere thanks to you, HH, and the many others for the expert advice. I and I'm sure others like me, very much appreciate the professional help that we have at our finger tips here, literally, as well as the volumes of scanned images and documents that we can reference 24-7...Big Kev's done a terrific job with this site...
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