Your stick truck has a bell crossmember, that needs to be cut out, & you can pick up an auto crossmember for the 67-72.....& scoot it around as already posted to get the fit. I like the 400 Turbos, as they are damn tuff, but you might look at the OD trans in the 93, as milage is good also! Your 4spd trans is pretty short, so you will be shortening the shaft to run pretty much anthing else. this isnt a big problem , as shorten & balance is far cheaper than lenthening the shaft. good luck .......crazy longhorn
