ok my uncle owns a junk yard. In it he has a older 4 cylinder jeep, ef 92 or before. Think its an auto. I looked under it seems to be a 35, didnt look to be the 44. Think it would have to have the 4:56 gears?

 

4.56 gears were never offered in a XJ, it will most likely have 4.10s. That is not for certain but was the standard gearing for a 4 cyl.

 

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.

http://en.wikipedia.org/wiki/Jeep_Cherokee_(XJ)

 

Listings vary-- mine came from the factory with 3:73 and 2.5 I had an 86 with a 2.8 which is a chevrolet sourced v6-- known to have a weak crank shaft, and 4:11 gears.

 

If it is not tagged,remove the diff cover and count the teeth,you will know what ratio you have then.

 

That's the problem with wikipedia, information is submitted by the general public and is often not verified before being published on the web. The Jeep Cherokee did not come with factory 4.56 gears.

Try these as well.
http://jeephorizons.com/tech/xjstockspecs.html

http://sisoffroad.com/forums/showthread.php?t=118

 

yeah go figures i got my hopes up

 

you don't have to even remove the dif cover to find out. Just put the car in neutral, and jack up the rear. Turn the rear wheel around one turn and count how many times the drive shaft turns. If it turns 3 1/2 times=3.54, just over 4 times=4.10, 4 1/2 times= 4.56
Quick and easy.

 

thank you thats very help full

 

I will post pics later to show an 88 pioneer with factory 4.56 gears

 

4.56 was an extremely rare factory option. Exact specs to get it are unknown, but it definitely had to be an automatic with I4. I suspect some combination of OHV, tow package, and/or UpCountry, but the required combination is unknown.

 

A buddy of mine just picked up an 88 XJ Pioneer with the 2.5 and auto. Equipped exactly the same as mine, except for the auto tranny, no tow package, no upcountry package, no power options, and he has factory 4.56's.
It was a rare gear option, but to be fair, his is the only 2.5 auto Jeep I've ever personally seen, it wouldn't surprise me if all the 2.5 autos got 4.56's. They need those low gears just to move, and his is still slower than my 2.5 5 speed on 33's with the stock 4.10's.

 

I've seen several, but only one with 4.56s. 4.10s were standard.

 

I have an 85 xj Pioneer with I4 3spd auto and factory 3.73s

Verified it when I had the cover off to change the fluid. There are numbers stamped on the ring and you divide them to get the ratio, check the reply in this thread for info

https://www.cherokeeforum.com/f2/che...-ratio-171605/

I haven't had this one on the road yet, still reviving it from the dead, but I know the original owner and no faster than he drove it I imagine it was ok for him lol. May need to change them once I get it on the road.

 

According to that WIKI mine shouldn't have come with 3.73s either.