I bought an 86 1/2 ton K10 with no drivetrain other than the front and rear 3.43 axles. It came originally with a v6 and 4 speed manual trans. I have a rebuilt 350 to install but I don't know what to do about a trans and transfer case. I'd like to be able to drive it on the freeway and am thinking a 700r4 would be good. I'm not off roading it just a year round driver in Michigan. If I put a 4 speed manual back in it I don't think it would be good on the freeway but am I wrong? What would I need for 700r4 swap?