Issues with my jeep, please help!!

91jeepxj

New Member
Joined
Feb 4, 2009
Location
Greensboro
When I bought my jeep about 2 years ago, the person before me had replaced the engine to a 4.0L HO. Now I am not sure if it had the HO or just the older AMC I6 in it before. Well this past spring my transmission oil cooler busted and put radiator fluid/water all in my transmission. Well had it professionally flushed about 6 times. Then about 4 months ago the clutch packs in the transmission went out.

Now I know it is better to get a used transmission rather than building the current one I have now. But I was doing some research and found out the Aisin AW4 I have is 30-43LE which they say is a 2wd transmission and my jeep is def 4wd. So when I get a new tranny should I get the Aisin AW4 40-30LE(4wd) or go back to the one I currently have?
 
1991 should have been the first year for the 4.0L HO engine. Before that, 87-90 XJ's had the non-HO version, the Renix 4.0L.

I never heard the different designations for the 2wd/4wd AW4 tranny. Sounds like someone adapted a 2wd tranny to hang the t-case behind it in your XJ. I suppose the 2wd version has a slip yoke output and wicked long driveshaft.

Best plan would be to find a 4wd AW4 and slap it in your XJ, then put your transfer case behind it. Depending on what it took to adapt a 2wd tranny, maybe just get a new 4wd tranny and t-case combo. If you get a 2wd, you would have to figure out how to mod it to accept the t-case...which may not be hard at all, dunno.
 
the only differnce between the 2wd tranny and the 4wd tranny is the output and cane cone. They had to use a 4wd output and tailcone on a 2wd tranny to make it bolt up to the tcase.

Yes get a 4wd tcase, unless you want to take it apart and put in the output and tail cone.
 
Just to let you know Greensboro U-pullit has several 4x4 4.0 xj's in their lot you could probably get a transmission pretty resonable and they offer a 30 day warranty also.
 
i've done 4x4 conversion and that is what i did... switch output shaft and got a 4x4 tail cone and put it on my 2wd transmission..... get the 4x4 transmission.... ( no brainer there)
 
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