Hack n tap install, help with pre 89 seal placement
Thread Starter
Senior Member
Joined: Nov 2009
Posts: 504
Likes: 3
From: Forest Grove, OR
Year: 1989
Model: Cherokee
Engine: Inline 6, 4.ol
Hello, just started working on my hack n tap and was reading thru the instructions. They are extremely dim about where this seal goes and would like some help before bolting anything up. As you can see in the first pic there is a grove on one side of the seal flange which im not sure is to form around the lip of the transfer case, or whether the seal sits inside of it. Or if the seal goes on the outside, pictures will make a lot more sense of what I'm asking, just need to know which side of the flange that the seal goes. Thanks for any help in advance, Im thinking that the third picture is how it goes, just dont want to *** it up.
-Phil
-Phil
Senior Member
Joined: Aug 2010
Posts: 1,012
Likes: 1
From: NC/SC
Year: 1990
Model: Cherokee
Engine: 4.0
Put some RTV on the flange before you bolt it on. The side with the groove goes on the inside against the tcase housing. The shaft seal goes on after everything else just like the factory seal.
Thread Starter
Senior Member
Joined: Nov 2009
Posts: 504
Likes: 3
From: Forest Grove, OR
Year: 1989
Model: Cherokee
Engine: Inline 6, 4.ol
Sweet, thats what I thought. Thanks for the help. I assume just tap it on with a hammer lightly and evenly till its seated all the way?
-Phil
-Phil
Thread Starter
Senior Member
Joined: Nov 2009
Posts: 504
Likes: 3
From: Forest Grove, OR
Year: 1989
Model: Cherokee
Engine: Inline 6, 4.ol
Sense everyone is still up, anyone know what the minimum amount of the shaft you can cut off is? I know the minimum is 1 1/4 inch, But I want to keep as much of the splines as possible, im guessing you have to take off about a full inch to make complete contact with the oil seal?
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CF Veteran
Joined: Mar 2010
Posts: 47,923
Likes: 38
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
the way i did mine was mounted the flange and seal then measured and got as much spline contact with yoke as possible .
Thread Starter
Senior Member
Joined: Nov 2009
Posts: 504
Likes: 3
From: Forest Grove, OR
Year: 1989
Model: Cherokee
Engine: Inline 6, 4.ol
Same exact thing im doing. Did you have to order a custom driveshaft or did the front shaft work? Just wondering because I noticed you have an 89 like mine and there is a disclaimer about the drive shaft if you have an 89 or older...
CF Veteran
Joined: Jun 2011
Posts: 2,448
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From: Colorado
Year: 1992
Model: Cherokee
Engine: 4.0
So I read through my instructions, have to go pickup the bits and tap, I was wondering if there were any tips for installation on a 92? I have the seal, but just curious if there's some tips, since this will be my first time doing this lol. Will I have any issue using my front driveshaft? Other than no 4wd.
Also, I bought my XJ with a 3-4'' lift on it already, and it has a t-case drop on it (which I'm removing), but I noticed this, and thought nothing of it until I saw the pictures above. What is this?
Also, I bought my XJ with a 3-4'' lift on it already, and it has a t-case drop on it (which I'm removing), but I noticed this, and thought nothing of it until I saw the pictures above. What is this?
Last edited by 92XJGuy; Oct 11, 2012 at 04:01 PM.
CF Veteran
Joined: Jun 2011
Posts: 2,448
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From: Colorado
Year: 1992
Model: Cherokee
Engine: 4.0
My buddy told me that the previous owner installed just the seal, for whatever reason, and there's a small chance he did a hack n tap, but unlikely. I bought a new seal from IRO with the HnT, so I'll use that anyway. Any tips on installation? I'm a little nervous, tbh.
CF Veteran
Joined: Jun 2011
Posts: 2,448
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From: Colorado
Year: 1992
Model: Cherokee
Engine: 4.0
Herres basic idea...Hack and Tap SYE Tutorial - YouTube
Yeah, that's why I bought the $40 seal with my HnT, but I was wondering about the red seal inside it. I'm sure there'd be more visible if there was already a hack n tap on it.




