Quote:
Originally Posted by uncle buck
Should the clutch pedal be depressed when shifting into overdrive?
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The shifting of the Columbia requires a momentary release of the clutch and throttle.. This action is kind of akin to patting your head and rubbing your tummy at the same time.
The '46-48 style of Columbia with the electric over vacuum shift controls are much more user friendly.
My '36 had the early style of mechanical over vacuum controls. I found it to be quite difficult to shift, if the shift to high/low range was missed, the differential gears would not line up which usually required almost coming to a complete stop.
In 1954 I replaced the original Columbia under my car with a '46-48 unit with the electric over vacuum controls.
I have never had a trouble with my Columbia, it shifts great, very smooth which usually is very seamless.
The gear ratio in my axle is 3.78, the engine is a well built 59AB which runs very well. Trans is a column shift 28 tooth unit out of a 47 Merc.