i have a 77 scottsdale 3/4 ton 4x4 it has a straight 6 with a 3 speed manual but i want to put my 77 350 motor in it but it has an automatic on it what bearings or what not do i need to change to put the manual on the 350 thanks chris superspeedsledracer069@hotmail.com

I'm not an expert on Chevy's,but you will need a flywheel that matches your 350 engine,and also have the same tooth count on the ring gear for the starter.Chevy's were available with 2 different diameter and tooth count flywheels and flexplates.The bellhousing from the 6 cylinder won't bolt up,you need a smallblock /\ inverted V bellhousing and corresponding throwout bearing and fork.You really need a Chevy expert to tell you if the 3 speed will work,spline count of the clutch and depth of the input shaft.3/4 ton,you would do well to try and identify the exact model of trans in your truck,OR go to a parts store,have them look up a clutch and pressure plate for your 6cyl./3 speed,write down the number,then look up a clutch and pressure plate for your same truck,77 Scotsdale,except with a 350 engine,and see if that part number is different.Would be better to look up just the clutch disk specifically if possible.