np249 ?

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Jun 12, 2020 | 01:08 AM

#16

Matthew Silverquill

Newbie

Joined: Jun 2020

Posts: 1

Likes: 0

Model: Cherokee (XJ)

Quote:

Originally Posted by Hunter_

The transfer case is not bad and a rather strong one, but in my zj with 230,000+ miles (370,000 km) the transmission that its married too seems to be getting week. Is that a normal thing for my beloved gen one grand cherokee?

My ZJ has 411k on factory t case, ive been running a different size tire for 2 year and no issues. Chaning it tomorrow to prolong its life

Jun 12, 2020 | 11:25 AM

#17

wingless

Senior Member

Joined: May 2015

Posts: 818

Likes: 35

Year: 1994

Model: Grand Cherokee

Engine: 5.2L Magnum V8 220hp 285ft-lbs

Quote:

Originally Posted by Matthew Silverquill

My ZJ has 411k on factory t case, ive been running a different size tire for 2 year and no issues. Chaning it tomorrow to prolong its life

Welcome to the forum.

It is generally preferred to start a new topic, than to resurrect an older topic.

The early NP249 transfer case required matching tire circumference to prevent damage to the viscous coupler. On mine I discovered from measurement that matching tires and pressures satisfied that requirement.

The NP249 (even the early version) is a fine transfer case w/ great characteristics when used properly.