I need some advice! - JeepForum.com
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Wrangler Forums > YJ Wrangler Technical Forum > I need some advice!

FS: Wranger BRIGHT License Plate LED! Just $3! Great value6th annual beat your wife to the credit cards sale!!FS: Wrangler RGB Multicolor Fog Light LEDs: Awesome Effect

Unread 11-15-2010, 03:50 PM   #1
Registered User
1988 YJ Wrangler 
Join Date: Nov 2010
Location: Noblesville, IN
Posts: 8
I need some advice!

Okay.....this is what I would like to do:

I have a 1988 Sahara that I have down to the frame & ready to put back together. It had the factory 4.2 with a TF999 3 speed auto transmission, NP 231 transfer case and about 130,000 miles.

Before I took it apart, it was having carb & head gasket issues and hesitated shifting from park to drive.

I also have a totaled 1996 Cherokee XJ with the 4.0 HO and AW4 auto transmission, but it is only a 2WD, and a 1994 YJ with the 2.5 and a 5 speed manual.....both run great with comperable miles.

I was hoping to use the newer 4.0 and AW4 transmission, but I don't think they will jive with my 231 transfer case.

In the end, I just want a reliable daily driver that will also push a little snow in the winter.

Any advice on how I should combine all of this stuff or any part I should stay away from would be very helpful!!!!!



Last edited by dmack3501; 11-15-2010 at 06:51 PM..
dmack3501 is offline   Reply With Quote Quick reply to this message
Unread 11-15-2010, 04:38 PM   #2
Registered User
1995 YJ Wrangler 
Join Date: Oct 2008
Location: Grand Jct, CO
Posts: 2,972
I'd use the 4.0 with the NP321, I think the NP231 that comes with the 2.5 will have to be adapted to work with the 4.0 and it's tranny though.
1995 YJ 2.5 - 4 RC lift - 1" MML - 33's - flat fenders front - TJ flares rear -Raptor lined exterior - Herc'd interior - DIY front bumper & winch plate - 136 amp alternator mod - 4.0 TB swap

My build thread...
I've got a shotgun, a rifle and a four wheel drive...
TheNewbie is offline   Reply With Quote Quick reply to this message

cherokee , sahara , wrangler , xj , YJ

Quick Reply

Register Now

In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools

Suggested Threads

Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.