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K20 k30 frame differences?
Hello everyone! I have a 1978 k20 with a kinked frame. I was wondering if any one here knows if a k30 frame is any more heavy duty than the k20 frame. I have heard that the k30 frames have taller rails in certain areas( under the rear of cab, and front of box.) I am going to change the frame...- Rmauto1
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- Forum: Tech Discussion
