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Old 06-12-2016, 05:04 PM   #3
bluek5
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Join Date: Apr 2012
Location: Lehi,Utah
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Re: 1970 k20 transmission conversion

The transfer case can stay in its original position. However the adapter for a 4 speed is different also the spline count of an automatic is 27 and a 4 speed is 10 I think. When doing a swap like this it would be advantageous to have a donor truck.
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Last edited by bluek5; 06-12-2016 at 06:55 PM. Reason: Spline count correction
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