I have done oil changes and diff changes etc. on the jeep before. So no need for a step by step. I can not remember what is done at or around 30k.

Just reached 33k miles, and have already changed the oil about 8 times prior to this. Just changed the diff oil when I got my new solid covers from someone off the forum, thanks!

I have already purchased a Fram 6x oil filter, 6 qts of castrol 5w20 high ,millage oil (says chrysler approved on it) 6 Bosch Double platinum (which actually have four arc towers on each plug) and four qrts of Penzoil ATF+4 for the transfer case.

Need to know what else I need to do? Tranny fluid change if so what details. Do I need plug wires if so recomendations as I would like to get some good ones (maybe in yellow). Just got an alignment at VODIE'S in garden Grove thanks Dave you are awsome!!!

any help would be appreciated.

 

I would get your oil filter from the dealership. Every oil filter I have had since a stock one made my engine tick on startup finally last oil change I got a stock one again and now no tick. i will never put a diffrent oil fiter in my jeep again. Even though the dealership charges around 15 bucks for one

 

ah yes I am aware of that problem and on here fram was recommended have that in there now and no tick, but this 6xs protection one is new so we will see.

 

There is a write up by WOL for the transfer case oil change. With the exception of having to drop a skid plate (easy), it is the same as changing a diff. Takes 2 qts ATF+4. While you are down there you may want to think about adding a zip tie to the t-case shifter.


Changing the auto-tranny fluid (which is really just a partial change) is a bit of a PITA. No drain valve (consider putting one in yourself) so you have to drop a full pan. Potential for a real mess if you're not careful. I haven't done mine yet (only at 16k) and it isn't "called for" until 60k (i think) but you will need ATF+4 and a new filter. Maybe a gasket... anyone know?

I'll be doing mine at 30k, even though I have an aux tranny cooler. These things run pretty hot and heat = bad for tranny fluid.

I assume you've been rotating your tires. Many folks do it when they change their oil.

have fun.

 

yeah i have read the write up from Eddie on Transfer case that is what inspired me I do rotate tire including the spare. Just more curious about tranny change on an auto and wether wires are needed or not. I am sure this would be a 700.00 service at jeep, but I am into it for 100.00 so far including spark plugs $6.00/per plus $6.00/qt for the transfer case ouch!

I was interested to find that pep boys had $58.00 a piece spark plugs if i wanted them?

 

Dealers seem to charge retail for parts anyway and instead of buying labor you get to spend the time with your rig!

$6 plugs... must be E3s From what I have read most folks haven't changed plugs unless they were getting a rough idle. And only changed wires if there was a problem like sparking or something.

Are you running rough?

$58 X 6= fail

 

Thanks for starting this thread. I need to do a 30K work also. I have a 2dr 08 wrangler x.

Diff change seems easy. But what about these two:

http://project-jk.com/jeep-jk-write-...ission-service - What's a NSG-370 manual transmission? Is that just the normal manual tranny in our jeeps? Is this something we should do?

http://project-jk.com/jeep-jk-write-...r-case-service - Should we do this too?

 

The hardest part of changing out the fluid in your manual tranny is fabricating a tool to get the drain bolt out. The exhaust crossover is located right underneath the drain bolt and there isnt a tool you can buy at a store that will fit in there. Check out wayoflife's write up or search the forum for fabricating ideas. As for your T-Case, if you use 4WD frequently i'd change the fluid for sure.

 

If you don't have one, I would recommend getting an owner's manual for your year Jeep. It has all of the factory recommendations, plus a lot of other good stuff too.

 

is there an easy way to check the fluid in the transfer case? I just bought the jeep used, and although it doesnt look like it's been off road at all I'm not totally sure if 4wd has been used frequently or not.

ha yea. Mine's in the mail. Hopefully I'll get it today.