Re: 1968 C20 Pickup Trans Swap Questions.... 4L80e
Your truck being a stick should already have the high hump floor, so I don't believe you should have to modify the floor. All you need to find is a cross member from an automatic truck. You could get away with just shortening the front shaft. TH400 uses a slip yoke and a different spline count than your manual transmission. If you use an inland empire billet hangar bearing the rear shaft may need to be modified with a sliding tube added. You will need to remove the manual transmission mounts as welll
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