K so I've been wanting to know what axles, tcase, & trans I have! I already sent a build sheet request to crystler with still no reply!?!? So if u guys know what I'm running or where I can find out I would be greatful to say the least! Its a 1989 XJ 2 door sport, 4.0 I6, 4x4, & NO tow package...
Thanks

you have over 500 posts and dont know what parts you have?
well to start off your front axle is a dana 30, and rear axle most likely is a dana 35. t-case is either np242 or np231 depending on if you have full time or not. full time 4 wheel drive = np242.

[edit] Manual transmissions

• 1984 – 1987 : Aisin-Warner AX4 4-speed manual, used with 2.5 L I4 only, 21 spline output.
• 1984-only : Borg-Warner T-4 4-speed manual, used with 2.5 L I4 only, 21 spline output.
• 1984-only : Borg-Warner T-5 5-speed manual, used with 2.5 L I4 and 2.8 L V6, 21 spline output.
• 1987 – Mid-1989 : Peugeot BA-10/5 5-speed manual used with 4.0 L I6, 21 spline output.
• 1984 – 2000 : Aisin-Warner AX5 5-speed manual, used with 2.5 L I4, 2.1 L I4 diesel, and 2.8 L V6, 21 spline output.
• Late-1989 – 1999 : Aisin-Warner AX15 5-speed manual, used with 4.0 L I6, 23 spline output.
• 2000 – 2001 : New Venture Gear NV3550 5-speed manual, used with 4.0 L I6, 23 spline output.

[edit] Automatic transmissions

• 1984 – 1986 : Chrysler A904 3-speed automatic, used with 2.5 L I4 and 2.8 L V6.
• 1994 – 2000 : Chrysler 30RH 3-speed automatic, used with 2.5 L I4.
• 1987 – 2001 : Aisin-Warner AW-4 4-speed automatic used with 2.5 L I4 and 4.0 L I6.

[edit] Transfer cases

All the transfer cases used on the Cherokee were chain driven with aluminum housings. Command-Trac was standard on XJ models built with 4WD.

• 1984 – 1987 : New Process NP207 "Command-Trac", part-time only, 2.61:1 ratio with low range
• 1987 – 2001 : New Process NP231 "Command-Trac", part-time only, 2.72:1 ratio with low range
• 1987 – 2001 : New Process NP242 "Selec-Trac", full-time/part-time, 2.72:1 ratio with low range

[edit] Axles

The Jeep XJ utilizes front and rear solid (live) axles as opposed to independent front and/or rear axles. This configuration allows the XJ to have superior off-road capability and performance at the expense of some on-road comfort and drivability. Mid-1985 and later two wheel drive models used the same basic suspension with a single tube connecting axle ends with no differential.
[edit] Front Axle

• 1984 – 1996 : Dana 30, High Pinion, Reverse Cut, 27-spline axleshafts (1989 – 1995 : with ABS used 5-297x universal joints, non-ABS had 5-260x universal joints. Note: Certain XJ models were produced with constant-velocity joints instead of universal joints.)
• 1996 – 1999 : Dana 30, High Pinion, Reverse Cut, 297x/760 universal joint, 27-spline axleshafts.
• 2000 – 2001 : Dana 30, Low Pinion, Standard Cut, 297x/760 universal joint, 27-spline axleshafts.
• 1985 – 2001 : Straight non-driven front axle for two wheel drive only.

[edit] Rear Axle

• 1984 – 1989 : Dana 35, non c-clip, with anti-lock braking system (ABS) or non-ABS.
• 1990 – 1996 : Dana 35, c-clip, ABS or non-ABS.
• 1997 – 2001 : Dana 35, c-clip, ABS.
• 1991 – 1996 : Chrysler 8.25", c-clip, non-ABS, 27-spline axleshafts.
• 1997 – 2001 : Chrysler 8.25", c-clip, non-ABS, 29-spline axleshafts.
• 1987 – 1990 : Dana 44, non-abs, 30-spline axleshafts.

[edit] Axle Gear Ratios

Jeep XJs came in several standard gearing ratios:

• 3.07:1, manual transmission, I6 engine.
• 3.54:1, automatic transmission, I6 engine with Dana 44 rear differential.
• 3.54:1, manual transmission, I4 diesel engine with Dana 35 rear differential.
• 3.55:1, automatic transmission, I6, V6 engines; manual transmission, I4 engine.
• 3.73:1, automatic transmission, I6, Tow Package, UpCountry Package.
• 4.10:1, manual transmission, V6; automatic transmission, I4 engine.
• 4.56:1, automatic transmission, I4, offroad or tow package

You have a Renix based EFI system, a AW-4 Transmission, if it's an auto, a Dana 30 front axle, more than likely a disco version, meaning that it disconnects midway on the pass. side, and a Dana 35 rear axle. They should be geared to 3.55, if you have not changed that. You should have a NP231 t-case, any other questions??

Ya I know I've just never got into gearing in it, but I've been thinkin about getting a locker! So ur positive I have D30 front? What year did they switch to the 8.25 rear?

Damn u guys are fast! Lol thanks

all cherokees come stock with a d30 front. the 8.25's are used since 91 and are 27 spline (weaker) and in 97 they had 29 spline. so you have the dana 35

and one more thing i would HIGHLY recommend not locking your dana 35. look for a chrysler 8.25 they are everywhere

So the info above shows that they did the rear D35 with/without abs & D44 without in '89 so is there an chance that it has the D44? Just hopping! Lol

very slim chance, but if you have one congrats

Ryan you got a big red beast. What else do you need to know?! lol.

This might help:

Ya. Aaron its The Red Rock Monster! Lol
K so I'm running; AW-4, NP231, D30 front, D35 rear, 3.55:1. That's what I'm talking about thanks guys!!!
Now that that's done & I know I have a weak D35! Should I just weld the spider gears & keep my eye out for an 8.25!
I hope the J10 is still in the JY after xmass!!!!!!

I'd wait for the 8.25 or a D44. It would be a PITA to drive that thing to the trails with your rear locked up.

Whats a J10??

1970 J10 honcho- he says D44 front & D60 rear! Some good old fab work & they'll look nice under my rig! lol
https://www.cherokeeforum.com/f53/j1...ng-yard-30491/

i heard it takes ALOT of skill and work to fab a d44 front to fit under the cherokee