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How to tell if a 55 has overdrive?
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Home away from home
 
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Was is available on the automatic transmissions? Where is the overdrive control knob located?
Posted on: 2022/8/28 12:11
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'55 400. Needs aesthetic parts put back on, and electrical system sorted.
'55 Clipper Deluxe. Engine is stuck-ish. |
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Re: How to tell if a 55 has overdrive?
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Forum Ambassador
 
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Quote:
OD was only available with standard shift manual transmissions.
Posted on: 2022/8/28 12:59
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Re: How to tell if a 55 has overdrive?
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Home away from home
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Thanks Owen and Howard. Howard sounds like it looks basically the same on the inside as the 51-54's.
Was the gear ratio higher in automatics where you didn't need it? Or do you drive on the highway at 3000 RPM with an automatic? 
Posted on: 2022/8/28 15:52
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'55 400. Needs aesthetic parts put back on, and electrical system sorted.
'55 Clipper Deluxe. Engine is stuck-ish. |
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Re: How to tell if a 55 has overdrive?
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Forum Ambassador
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Ultramatic equipped cars generally were equipped with a 3.54 rear ratio, but 3.23 and 3.07 were available. Standard transmission cars typically had the 3.90 ratio. Seldom seen but in 1956 a 2.87 was also offered with Ultramatic.
The listing of standard and optional ratios are in the specifications which are published in the 1955 Service Counselors.
Posted on: 2022/8/28 16:06
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