Originally Posted by beto4632
I can probably change out the spark plugs thinking or replacing with champion double platinum and i can replace the air and cabin filter and the oil change. Where would you recommend to do the rest of the services?
Unless someone installed the cabin air filter, you don't have one. None of the I6 WJ came from the factory w/ a cabin air filter.
If you can change the oil on the Jeep, you can change the TC fluid. I would also say that you can change the differential fluid (at least the front).
To change the TC fluid, you drain the old fluid out by removing a plug and pour new stuff in. Helpful hint, remove the fill hole BEFORE you drain the old fluid. This makes sure the fill hole isn't seized before you drain out all your fluid.
Changing the diff fluid is easy like Frango said. You don't even have to jack up the Jeep to change the front fluid. You just need a ratchet, socket, BRASS scraper (us a brass scraper so it doesn't gouge the diff metal), rubber mallet, and RTV. First, you remove the fill hole to make sure it's not seized (one diff has a metal plug and the other is a rubber stopper). You simply remove the bolts holding on the cover. Loosen, but leave the top bolt in place. Put a pan under the diff and use a mallet to gently hit the cover and break the seal and let all the fluid drain out. Then remove the top bolt and cover. Using the brass scraper, remove all the old RTV from the cover and the differential. Apply new RTV to the cover (making sure there's no air gaps) and reapply the cover to the differential. Fill with new fluid (make sure you add any limited slip additive if you need it). The rear is the same except you have to jack up the Jeep and let the suspension hang full down to get access to all the bolts.
If you can change the oil, you can change these fluids.