Yes you can do it. It is just allot of work if you do not have a lift. All you need to do is put the vehicle on jack stands and remove everything to drop the motor/tranny down then once thsi is done... you will have to carefully lift the van enough to slide the motor/tranny assembly out from under it by jacking then blocking the van small amounts at a time. You will need at least 2 floor jacks and lots of blocking. Now most will say that I am full of it.. but some people out there cannot afford to spend $2000.00 to have it swaped. I agree that it is very hard and allot of work to do it without a lift.. but it is not impossible. Where theres a will... theres a way right?