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NP231 Fixed Yoke Install



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Old 07-07-2005, 07:06 PM   #1
 
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NP231 Fixed Yoke Install

I began the transfer from parts YJ to trail YJ today. JKS fixed rear output is the first victim. Since I have limited working space and limited help available, I'm going to attempt the install without removing the transfer case from the vehicle. I know it can be done that way cuz I found a great website while searching for install instructions:

http://www.4x4xplor.com/SYE-CV.html

Yes, it's for an Advance Adapters brand kit, but they look to be pretty much the same.

I'm through Step 10 and along the way I've discovered a few things:

1. Mudgod, I think I figured out what the "bump bump" is. There are no bolts connecting the trans mount to the trans (adapter). Completely gone, not broke off. Gone. (I bet this Jeep has had a trans rebuild at some point)

2. New cancer discovered: 1 of 6 skid plate bolts goes all the way THROUGH the skid plate. Cancer on the frame hidden by the skid plate. And it looks like all the washers on bottom of the body mounts are completely ate up.
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Old 07-07-2005, 08:49 PM   #2
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trans adapter

Hatch check another rig just like yours because i think there are supposed to be some huge rubber washers (4 of them for the 2 bolts, one between the adapter and then a flat washer and then another between the crossmember and flat washer) where the bolts go through.
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Old 07-07-2005, 09:16 PM   #3
 
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Well, whatever is supposed to be there is ate up. Might be installing new poly body mounts sooner that I thought. Lemme see how I am on tire clearance after the axle swap and spring over; might do a body lift.

I'm down to Step 17. Looked everywhere for my good snap ring pliers, and then I remembered: they were in the toolbox that was stolen back in February.

The instructions I'm using as a guide are for TJ and there are some minor differences, but I'm managing to stumble through it okay so far. Destroyed the rear seal on what's left of the parts t-case trying to get to the retaining rings on the "new" output shaft. Turns out there ain't any. But I wasn't lucky enough to have the same thing on the stock t-case output. AutoZone is still open, so I'm gonna run up there and see if they have some good (yeah right) snap ring pliers and a seal.

I think I can get the t-case wrapped up tomorrow afternoon.
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Old 07-07-2005, 09:17 PM   #4
 
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Originally Posted by Hatch
Well, whatever is supposed to be there is ate up. Might be installing new poly body mounts sooner that I thought. Lemme see how I am on tire clearance after the axle swap and spring over; might do a body lift.
Okay, lemme pull my head out.

I have another rig I can look at for comparison. I have another rig I can steal body mounts from if I need to.
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Old 07-07-2005, 09:47 PM   #5
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Do the body lift!!

We were both close that day. I said something in the drivetrain, and you said body mount.

Do the body lift!!

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Old 07-07-2005, 10:39 PM   #6
 
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It took a magnifying glass to read the number on the seal. No joy cross-referencing at AutoZone. I sent an email to JB Conversions (I'm guessing that's the brand cuz I can't find a "JKS" SYE kit and that's what the prev owner told me it was). I also emailed Baertrax to see if he might have one.

AZ had a nice looking set of snap ring pliers, but I'm not removing a true snap ring (little holes on the ends). I believe these are called LOCK rings (no holes). I'm going to try and find the CORRECT tool tomorrow. If not, snap ring pliers it is.

[Funny: AutoZone was bound and determined to look it up by vehicle, despite me telling them "it is not a standard part!" After two wrong parts, they finally went for the cross reference, which yielded zilch.]
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Old 07-07-2005, 10:59 PM   #7
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Did they cross it in the computer or the catalog? A lot of times it's listed in the catalog, but not the computer. They still probably wont have it in stock, but atleast you will have a part number.
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Old 07-07-2005, 11:01 PM   #8
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They try that with me when I need something for the blaser.
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Old 07-08-2005, 07:58 AM   #9
 
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Did they cross it in the computer or the catalog?
Well...what do you think?
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Old 07-08-2005, 09:41 PM   #10
 
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I went to see my favorite OReilly's counter dude today. He never hesitates to go to the paper catalogs. Took him about one minute to find the right seal.

Man, those instructions I found were a big help! It still took a little "wingin' it" since I was transfering a previously installed SYE kit. I'm going to see if I can contact the owner of that website and get permission to copy his pics and instructions (and give him full credit) over here somewhere. That way we have an archive in case something happens at his site.

It's all done except for adding fluid, reconnecting the front driveshaft, and installing the belly pan. Oh yeah, gotta find some bolts for that trans mount too. Prep for the 9" rear swap has already begun. I definitely plan to snap some pics along the way for that little project.
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Old 07-08-2005, 10:57 PM   #11
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sounds good Hatch
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Old 07-10-2005, 09:59 AM   #12
 
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I couldn't find any bolts from my many boxes/cans of bolts that matched the trans mount. I called Dallas Dodge Saturday morning to see if the parts book gave any tech info on the bolts. Sweet: 7/16-14x 1". Popped over to the hardware store and bought a pair PLUS lock washers.

I re-used the belly pan, even though it has a cancer issue on one of the six bolt holes. Once I get the engine/trans pulled from the parts Jeep, I'll swap out the pans. After a trail run, I may decide I want a 4:1 t-case kit and the belly pan comes off at that point anyway. I try to avoid double-work whenever I can.
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