You can pull the engine and trans. as one. As far as taking the front clip off to do it I have never done that, to a running vehicle. On trucks that I part out I have. My answer to you is this. If your going to pull the engine and trans. out of both trucks. Do the donor truck first, that way you will get an idea on how everything goes, and it won't be as intimadating on the "real" swap.
IMO pulling the clip in itself is a chore for a novice, however it does make the swap easier. So weight the diffrences.
Now the engines and transmissions. Make sure your Jimmy is indeed equipt. with the same trans. as the Sub. Look at the pan on both transmissions, a th400 tranny pan looks like Texas, a th350 is a retangle almost square even. The two are not interchangable as the end that bolts to your transfer case is diffrent and the 400 is longer than the 350. If both trucks have the same transfer case however then you can swap the adapter over to the new truck along with the tranny. Or if they are indeed the same than your in business as well. /forums/images/icons/grin.gif Now the engines on the other hand will fit with no problem. /forums/images/icons/grin.gif A bolt in affair as they say.
Hope that helps you. Just one other thing if you could fill in your profile more it would help us help you more. /forums/images/icons/grin.gif /forums/images/icons/wink.gif
