VAXJCOUNTRY
NAXJA Forum User
- Location
- Shenandoah Valley, VA
First, hello 
. I am new to this forum and sorta new to Jeeps, but not the car hobby. I am on Cherokee forum quite a bit but I have been told by several other XJ owners this is the place to be. Let me give you a quick run down on my setup and my questions. I searched "SYE" but no results were found. I'm sure I'm not doing something right there because I am sure it has been discussed. I've read all of the FAQ and have done lots of research but I still have to ask.
1997 Cherokee Country, 4.0, AW4, NP-231 T-case. 3.55 geared 8.25.
Lift - 3in procomp coils on the front, Bastard pack rear at about 4in. 31in tires.
The problem - lots of vibes and chattering/droning. Chattering is at interstate speeds with just enough throttle to neither accelerate or decelerate (unloaded drivetrain). I have been told this is the u-joints.
Attempts to fix - Rusty's 1in T-case drop then a custom 3/4in t-case drop. Taking the case up made it better at lower speeds but even worse at higher speeds. New U-joints, fluid in the diff.
Conclusion at this point - I need an SYE but I cannot afford $500. So I am thinking a hack-n-tap and some sort of shaft. I don't want to drop $300 on a custom shaft so I come with the following questions.
Question 1 - SYE sound like the fix? I know its hard to answer but its where I am leaning and all my research as pointed. Seems like 96 and newer is even more prone to driveline issues.
Question 2 - Is there some OEM shaft I can use? I swore I saw someone use an XJ stock front shaft on the back once. Can't find the links or info now. Any cheap source for a shaft or data on how to measure for ordering one would be great.
Question 3 - Hack-n-tap good enough for 31's and mild wheelin?
. I am new to this forum and sorta new to Jeeps, but not the car hobby. I am on Cherokee forum quite a bit but I have been told by several other XJ owners this is the place to be. Let me give you a quick run down on my setup and my questions. I searched "SYE" but no results were found. I'm sure I'm not doing something right there because I am sure it has been discussed. I've read all of the FAQ and have done lots of research but I still have to ask.1997 Cherokee Country, 4.0, AW4, NP-231 T-case. 3.55 geared 8.25.
Lift - 3in procomp coils on the front, Bastard pack rear at about 4in. 31in tires.
The problem - lots of vibes and chattering/droning. Chattering is at interstate speeds with just enough throttle to neither accelerate or decelerate (unloaded drivetrain). I have been told this is the u-joints.
Attempts to fix - Rusty's 1in T-case drop then a custom 3/4in t-case drop. Taking the case up made it better at lower speeds but even worse at higher speeds. New U-joints, fluid in the diff.
Conclusion at this point - I need an SYE but I cannot afford $500. So I am thinking a hack-n-tap and some sort of shaft. I don't want to drop $300 on a custom shaft so I come with the following questions.
Question 1 - SYE sound like the fix? I know its hard to answer but its where I am leaning and all my research as pointed. Seems like 96 and newer is even more prone to driveline issues.
Question 2 - Is there some OEM shaft I can use? I swore I saw someone use an XJ stock front shaft on the back once. Can't find the links or info now. Any cheap source for a shaft or data on how to measure for ordering one would be great.
Question 3 - Hack-n-tap good enough for 31's and mild wheelin?
