Anything you do like shimming the seat mount to gain height will decrease its stability in a crash, the best thing, especially since raising it up will practically make the headrest hit the rollbar is to get a cushion for the seat to get you up a little higher.
I used a T40 on my 1997 Wrangler on the forward brackets of the fold-and-tumble rear seat.
If there is a seat and a seat belt, yes.
Under the passenger seat.
Yes, that should work.
Yes, they should be the same
If it has a passenger air bag I wouldn't......
under the passager seat.
Under the passengers seat.
under the front seat.
If the seat is wore down you can put more padding in the seat or make sure the springs are functioning properly. Easiest way just sit on a pillow with a seat cover over it.
There are several different ways to add and change seating in the Jeep Wrangler and the Unlimited and the seats can go into the other vehicles. You can use the back seat of the Wrangler to go in a third row of a Wrangler Unlimited though the mounting brackets sold aftermarket from a company that are not NHSTA tested. There is a business called Little Passenger Seats that makes seats for the Jeep Wrangler Unlimited that will also work for the Wrangler and they have safety tested their product and passes NHSTA regs. The problem with adding and switching these seats on your own are finding and mounting seat belts. That is why Little Passenger Seats is great because the brackets are included and seatbelts come mounted on the seat. Check it out.
Yes, the 2002 Jeep Wrangler had front seat driver and passenger air bags.