Trans Case Fluid Change?????

S

sprngfldxj

NAXJA Forum User

Location

Springfield, Colorado

• Aug 25, 2006

• #1

I recently purchased an XJ.
The previous owner ran gear oil in it...80-90? I have owned an 88 before this and recall that (if i remeber correctly), the trans case runs ATF?
Is thsi true? Can anyone help with knowledge of this?
Reason I am asking, is that I am getting a loud noise from the case when the 4H/4L is engaged, but not when it is in 2H. It is an NP242, with Auto.

 

Jeep914x4

NAXJA Forum User

Location

New Mexico

• Aug 25, 2006

• #2

You are correct.

ATF is what you need. I just rebuilt mine about 5K ago. Put some cheapie wal mart fluid in for about 500 miles and then drained and refilled with mobile 1 synthetic. Lots of people claim their case runs cooler with synthetic.

Hopefully your transfercase isn't toast...

 

N

nodor

NAXJA Forum User

Location

Washington

• Aug 25, 2006

• #3

I run atf in my 1990 np242

 

M

mr magoo

NAXJA Forum User

Location

Central PA

• Aug 26, 2006

• #4

I recently changed my atf fluid. Synthetic was somewhere around $1 more a quart. It was a no brainer.

 

J

jeepsrock

NAXJA Forum User

Location

LA California

• Aug 26, 2006

• #5

Synthetic or not is your choice, not sure if one is better or not- but regardless make sure your fluid is at the proper level and is replaced every once in a while as it should be. Use mercon/dexron fluid.

pete

 

N

need4speedjp

NAXJA Forum User

Location

Grand Rapids, MI

• Aug 26, 2006

• #6

Royal Purple ATF full synthetic its about $8.99 a quart, but ive never heard one bad thing about RP.

 

S

sprngfldxj

NAXJA Forum User

Location

Springfield, Colorado

• Aug 26, 2006

• #7

Sweeettt!!
Guys, Thank you