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Old 10-10-2008, 02:17 PM   #1
Join Date: Oct 2008
Posts: 111
New to me Jeep - Questions

eBay Motors: Jeep : Wrangler (item 280275256284 end time Oct-08-08 09:22:50 PDT)

After wanting a Jeep since I was young, I snagged this one off ebay (98' TJ, 2.5 manual, and will pick it up on Tuesday. My purpose for the Jeep is limited trail (no lift/tires), and enjoy the open air.

Here is my question list:

Diff fluid - which brand is best, I am leaning synthetic
Trans fluid - is MT 90 the best? = how much do I need to order?
Xcase - Mobil 1 ATF? -
How do you take off the half doors? Windshield?
Best way to polish soft top windows?
Best way to 'amour all' the top?
Plugs/wires? Any brand prefs?
Always used K&N - should I get a direct drop in - or is there a better CAI?
Best rust prevention/cure - power wash/por15?
Best/cost effective neoprene seat covers?
Best source for carpet?
How to explain to normal people that I NEED this Jeep, when more 'practical' options exist.
Over/Under for how long before I change my mind and lift it?

Thats all for now - thanks in advance for your answers
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Old 10-10-2008, 03:00 PM   #2
Jma20a's Avatar
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Location: Fairfield, CT
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ok lets see here

taking the doors off-- remove the two nuts on the hinge and lift. swing it back and forth if it gives you trouble.

cleaning the top--bestop makes some good cleaners and conditioners.

intake-- if you go with a drop in filter i have been told many times that acdelco has the best flow to it. if you go with a full CAI you are going to get a little power and throttle response. with my 4 cylinder it didn't do too much.

seat covers-- rugged ridge and smittybilt offer good neoprene covers for the same price.

as for a lift i depends on what kind of off-roading you plan on doing. and your budget.

Dear Algebra, Please stop asking us to find your X. She's never coming back and don't ask Y.
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Old 10-10-2008, 03:33 PM   #3
Knows a couple things...

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Location: Escondido, Calif.
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For the differential, I'd stick with a good mineral-based (non synthetic) gear lube like Valvoline 75W-90. Some very well respected axle manufacturers like Currie have found that gears run hotter with synthetic gear lubes so they require a non-synthetic gear lube to keep the warranty in effect. After much research, they found that synthetic gear lube doesn't "sink" (pull) the heat away from the gears as well which is why synthetic-filled differentials are cooler, but the gears themselves are hotter than with a conventional mineral-based gear lube.

For the MT-90 tranny gear lube, you'll need four quarts as your transmission holds right at 3.3 quarts.

For the transfer case, any good quality ATF is fine. I'd use any good quality brand like Valvoline, Mobil, Pennzoil, etc. No need to spend more for something expensive like ATF+4.

Ignition wire-wise, the very best you can do is to get a set from the dealer. They're very high quality and don't cause radio noise like most aftermarket wire sets do. If you can't resist running aftermarket wires, avoid any that push "low resistance" which does not (contrary to what seems to make sense) give a "hotter" spark. The low resistance type plug wires (even if they say something like "RFI (radio frequency interference) Suppressed) will instead create extra noise which your radio/audio system will pick up.

That '98 you bought will not be fussy about spark plugs as the newer TJs are. Yours will run fine on nearly anything but resist the gimmick plugs like Bosch Plus2 or Plus4 (our TJ engines don't run well on those particular plugs), or Splitfire. A good standard plug is the Champion #4412 Truck Plug. What I prefer due to its extremely long life and good performance is the Autolite AP985 plug which is a platinum. I got over 90K miles out of my last set and they were still at the .035 original gap when I pulled them. Don't let the auto parts store guy talk you into a more costly plug with platinum on both sides of the gap like an Autolite APP985 (two P's in the p/n) as it just costs more with no performance benefit in your particular engine.

Scratched soft top windows are best polished with a multi-step polish like is made by Novus or Maguires. Both work well to remove scratches that aren't too deep but they do take some real elbow grease to use. To avoid scratching them, never ever (!!!) use paper towels on your plastic windows. Paper towels are made from wood products which will eventually turn a plastic window opaque. Instead, use a slightly moistened soft cotton terrycloth towel.

That'll get you going, good luck with your new Jeep.
When you have a choice, buy American.
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Old 10-10-2008, 04:53 PM   #4
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Join Date: Mar 2007
Location: Pocono mountains
Posts: 1,559
X2 on what Jerry said. As for explaining why you 'need' this jeep, just say you want to get more ultraviolet exposure for your teeth by making you smile all the time. I can be having a bad day and when I get behind the wheel of ANY of my jeeps, TJ, XJ or ZJ everything turns good, it's really strange, none of my other wheels cept my Motorcycle when I had it make me do that.
The real plus side, easy to work on, 4 banger gets good mileage, fits in tight parking spaces. Lets face it, jeeps are cool, I've never met anyone who did not like a jeep, people seem drawn to them like magnets. How often do you see say an explorer owner pull over for another broken down explorer, as far as jeeps are concerned it's a normal thing to offer help to another jeep owner along side the road.

Oh and before you drain either your tranny or transfer case remove the fill plugs first, before you remove the drain plugs, sometimes they can be tough to get out and you don't want to drain it before you know you can fill it up again. Also invest in one of those suction guns for refilling, makes life a tad easier than working one of those tiny hand pumps. You will see what I mean once you see where the fill plugs are
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