Well I did them together , and I am restoring the truck but when it goes back I'm set all lines and then set motor and trans bolt them down then the cab cause I had no help and let's just say it was a mess , I have what looked like a murder under my truck getting thr drive shaft out was hardest because mine is a 2 piece and right were the meet is only a foot and wouldn't u know it the bolts at rounded of on both sides and rusted so I jacked up the front a little had my hoist locked and wigged my trans of , why harder than it sound and how I didn't get any on me must have been my creeper that saved me