Preventative work while trans is off? - JeepForum.com
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post #1 of 5 Old 09-04-2019, 10:08 PM Thread Starter
greaseorbounce
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1998 TJ Wrangler 
 
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Preventative work while trans is off?

I recently picked up a new TJ!!!!! 1998, 4.0. I've had several Jeeps, but it's been a while and I'm super excited to be back in the game.

I picked it up for a song because the transmission needed major help. 3rd gear synchro straight didn't exist, and others were slightly crunchy.

Rebuild kit on the way. Transmission out of jeep (that was a fun project in itself. Dowel pins were rusted right and proper like.) Of all the trannys I've done, I haven't done an AX15 before so I'm kinda looking forward to it in a masochistic kind of way.

Here's the question: while I have this thing out, what else should I do to save headache later? I'm dropping in a new LUK kit and new flywheel (looks like the clutch is original since it's pretty evident I was the first to separate the trans from the engine, 150k miles.)

I think I remember on the 4.0 the rear main seal is actually done from the oil pan side, so that shouldn't be a factor really.

Transfer case seems fine, so I'm tempted to leave well enough alone there...

What else am I forgetting? What should I replace while the whole mess is out?

Thanks!!!

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post #2 of 5 Old 09-05-2019, 05:32 AM
jtec
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As you mentioned rear main, motor mounts OK ?


Double check flywheel compatibility - it triggers CKP and IIRC model years matter.

When I see the price of OEM I think aftermarket.
When I see the quality of aftermarket I think OEM.
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post #3 of 5 Old 09-05-2019, 06:50 AM
downs
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1995 XJ Cherokee 
 
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Garage
Rear freeze plug.

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1995 Jeep Cherokee Country 4X4 Stock
AW4/NP231/C8.25/D30/"UpCounty" suspension
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post #4 of 5 Old 09-05-2019, 07:26 AM Thread Starter
greaseorbounce
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Quote:
Originally Posted by jtec View Post
As you mentioned rear main, motor mounts OK ?


Double check flywheel compatibility - it triggers CKP and IIRC model years matter.

I believe you, but do you have a reference by chance? I can't find what you're talking about. TJ Parts manual I have only lists one part number for the 4.0 (53020519) and the LUK kit I purchased claims compatibility with '94-'04 TJ with the 4.0.

Again, I'm not in any way saying you're wrong, but I can't for the life of me find information about it.

This isn't another case like that pesky 5th gear change they made that they didn't document is it?
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post #5 of 5 Old 09-05-2019, 07:31 AM Thread Starter
greaseorbounce
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Quote:
Originally Posted by downs View Post
Rear freeze plug.

Sent from my SM-G892A using Tapatalk
Now THAT is a solid idea. I had forgotten about the craptastic freeze plugs that chrysler loved for a while.... I'm sure I would have been reminded a couple miles down the road when it started leaking..... Thanks!
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