This is why I hate NSG transmissions

astjp2 said:
I am looking at all options for potential problems, I have not found anything that is out of spec except for shitty problems that were different each time.
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We gotta get this thing road worthy. I’m surprised the company is still sending you more transmissions. They must be committed to figuring this transmission out, or dumb. If they were really committed, they would put their rebuilt transmissions in vehicles and drive them and drive them and drive them 20 30 40, 50,000 miles.
 
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JMT said:
We gotta get this thing road worthy. I’m surprised the company is still sending you more transmissions. They must be committed to figuring this transmission out, or dumb. If they were really committed, they would put their rebuilt transmissions in vehicles and drive them and drive them and drive them 20 30 40, 50,000 miles.
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Come on out and take a look! 👀
 
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Well, I went over and took a look. Turns out my uncles airplane is sitting is his back yard!

I don't see any reason at all these transmissions are having any issue. its gotta be the rebuild, no question in my mind. I looked over both shift towers, not any wear on them at all, just burnishing where they've contacted. The one thing that did catch my attention is the shift fork mechanism looks like a used unit. I'm suspicious that is the problem but even then.... the list of failures doesn't line up with that 100% either. Its probably just crap rebuilds and bad luck. Cool jeep though!
 
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k1n3k said:
Well, I went over and took a look. Turns out my uncles airplane is sitting is his back yard!

I don't see any reason at all these transmissions are having any issue. its gotta be the rebuild, no question in my mind. I looked over both shift towers, not any wear on them at all, just burnishing where they've contacted. The one thing that did catch my attention is the shift fork mechanism looks like a used unit. I'm suspicious that is the problem but even then.... the list of failures doesn't line up with that 100% either. Its probably just crap rebuilds and bad luck. Cool jeep though!
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Thanks for stopping by! Yep a real crap shoot
 
Zorba said:
You'd think huh? Egg on their face multiple times? Doesn't make sense...
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I don't know enough about them, but I wonder if they farm out the rebuilds to another company for certain transmissions and the quality is absolute garbage.

So many rebuilds are junk these days, same with engines. I know a guy who went through 3 different Jasper Chevy 5.3 engines in a Silverado before he got one that made it more than 50 miles.
 
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jeepguy03 said:
So many rebuilds are junk these days, same with engines. I know a guy who went through 3 different Jasper Chevy 5.3 engines in a Silverado before he got one that made it more than 50 miles.
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Same here, I have a buddy that's on his 3rd Jasper 5.3. Jasper is now a no go for engines. If you can't rebuild a LS, I have no faith in you.
 
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JKP said:
Same here, I have a buddy that's on his 3rd Jasper 5.3. Jasper is now a no go for engines. If you can't rebuild a LS, I have no faith in you.
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Back in the day when I owned XJs, there was a guy on one of the other Jeepforums who pulled a Jasper rebuilt 4.0 out of an XJ he had bought. The rebuild had been done fairly recently (supporting paperwork), but seemed down on power. What he found was basically a well-worn 4.0L that someone had thrown some new bearings in, a new piston or two, and sent it on its way. A bunch of the bores were different sizes, the timing set was original, but at least they painted the block and head. :ROFLMAO:

On that same forum there were a bunch of guys with 2000-2001 XJs that had the 0331 crack-prone head. One guy called Jasper to quote an engine and wanted to see if the rebuilt one had the improved casting, since he would be replacing an engine that had cracked the head and ran too-long with coolant in the oil, ruining the bearings. The Jasper rep stated that the 2000-2001 heads are fine and there is no known issue with them.
 
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tried borscoping today, was looking for brass or plastic sliders, need to look some more in the fill hole
 
jeepguy03 said:
I don't know enough about them, but I wonder if they farm out the rebuilds to another company for certain transmissions and the quality is absolute garbage.

So many rebuilds are junk these days, same with engines. I know a guy who went through 3 different Jasper Chevy 5.3 engines in a Silverado before he got one that made it more than 50 miles.
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When I swapped in my ax15, I called the popular source for rebuilt nsgs to see if they wanted my core and they referred me to another entity that was actually doing the rebuilds.
 
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Just read through this whole thread. Sorry @astj, your’s is a crazy story and makes me feel pretty fortunate. It will probably grenade tomorrow, but as of right now, the AX-15 is the ONLY original thing in my ‘97’s entire drivetrain. Still smooth and quiet after 173K. In your shoes, I’d ask for money back and do that 727 or a Novak AX-15.
 
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Well Novak is 30 miles away from me, it’s an option, but the whole have to fix driveshaft length and shifter linkage for the atlas would drain me at this point…
 
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Rickyd said:
Isn't the ax15 within a fraction of an inch in length?
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yes, it's within about 1/4" of the NSG, don't even remember longer or shorter but I did nothing to my driveshafts or anything else that would have been impacted by length. The shifter moves but that's because the shifter isn't in the same place on the transmission.
 
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