Oil pan gasket, transmission plug, oil plug, transfer case plug

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02-06-2020 | 04:29 PM

#16

Tgramsey

Member

Joined: Jun 2019

Posts: 190

Likes: 25

From: Greeneville, Tennessee

Year: 1995

Model: Cherokee (XJ)

Engine: 4.0

Quote:

Originally Posted by Ralph77

Must be different then my '00 then.
10 mm hex head for both drain and fill.

Yeah you have the np241 I believe, pre96 has the np231. You have the rubber boot I believe, I do not.

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02-06-2020 | 11:27 PM

#17

lawsoncl

CF Veteran

Joined: Dec 2017

Posts: 4,074

Likes: 1,128

Year: 1989

Model: Comanche (MJ)

Engine: 4.0

I've seen both the 30mm hex head and the 10mm allen on the 231. Just depends on the year I think. Pretty sure my 95 YJ with the 231 had the allen head.

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02-07-2020 | 12:26 AM

#18

dave1123

Old fart with a wrench

Joined: Nov 2010

Posts: 14,398

Likes: 730

From: Manlius, east of Syracuse, NY

Year: 2000 XJ Sport & WJ Laredo

Model: Grand Cherokee (WJ)

Engine: 4.0L

New Process transfer cases were molded for GM as well as for Chrysler and the GM cases used a big hex plug and a gasket for fill and drain. Chrysler cases use a 1/2" pipe plug which is 10mm internal hex and are flush when installed. It's possible a 231 could be assembled in a GM case if they had a large overstock of those case halves. The front half of the case is different for GM. Mainly bolt pattern.

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