Who Has Bought a Rebuilt NSG370?
- Thread starter g.hayduke
- Start date
After a 1.25" BL and a 1" MML, my shifter was contacting the console in 2nd and reverse. I ran for a while with the plastic boot retainer trim removed until I did my tuck which brought it back out of interference.
I thought I'd read somewhere that there were parts involved that weren't interchangeable or compatible with their mating parts from the other model. Can't find it now though, and i don't think it was on this forum.
I suspect the only real way to find out is going to be by purchasing both and trying it.
My 06 pops out of reverse on occasion. I haven't been able to fully ascertain whether I'm occasionally not getting it in all the way; the only way I can get it in is to de-clutch in neutral to spin things up and then quickly put it in R, which it does with a slight crunch. Last time it popped out I remembered not hearing /feeling the crunch, so I may not have been fully seated.
you're smart. i removed the stick and bent it in a press after my mml and bl. later i did tt, and had to remove it again and bend it back.
That's more news than I've been able to find out - it would be unfortunate if true, but you're probably right!
Mine is really quiet...
OP, I did not buy a rebuilt, but bought a new one from MOPAR, and have been very happy with it. I think I paid $2500 +core for it in 2012. I know it was the upgraded version that is run in the JKs.
Here's an update. I had to take a break from working on the Jeep while recovering from rotator cuff surgery but I finally got to finish installing the rebuilt NSG370 I got from High Impact.
So far, it's perfect. Shifts nice. Reverse feels much more definite going into gear than before. Third gear is a little noisy but already seems to be quieting down. I think some break-in time may reduce some noise.
FWIW, I have very little noise from the transmission while idling in neutral. For those with that issue, you may have a TO bearing issue or possibly an input shaft bearing going bad.
I also added a barbed hose fitting to the shift tower and extended the vent to the top of the firewall. I saw a picture of the exact same mod on a forum but I can't find it now to give credit where due.
EDIT: It's NOT noisy at all! I found some contact between the new vent I installed in the shift tower and some plastic extending down from the shift tunnel cover, sort of like a skirt around the outside of the cover to locate it properly in the opening. I trimmed the skirt a bit and eliminated the contact. Now, it's super quiet, way quieter than the old transmission.
So far, it's perfect. Shifts nice. Reverse feels much more definite going into gear than before. Third gear is a little noisy but already seems to be quieting down. I think some break-in time may reduce some noise.
FWIW, I have very little noise from the transmission while idling in neutral. For those with that issue, you may have a TO bearing issue or possibly an input shaft bearing going bad.
I also added a barbed hose fitting to the shift tower and extended the vent to the top of the firewall. I saw a picture of the exact same mod on a forum but I can't find it now to give credit where due.
EDIT: It's NOT noisy at all! I found some contact between the new vent I installed in the shift tower and some plastic extending down from the shift tunnel cover, sort of like a skirt around the outside of the cover to locate it properly in the opening. I trimmed the skirt a bit and eliminated the contact. Now, it's super quiet, way quieter than the old transmission.
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I have a good pic of the vent mod but for some reason, it won't upload properly. No idea why.
Everything is back together so it might be tough to get a good view and a new pic but I'll try.
Basically, I tapped a 1/4" NPT hole in the left side of the shift tower, getting creative with capturing the metal chips. Then I installed a 1/4" street elbow and a 1/4" hose barb fitting for 3/8" id hose. Then I used RTV and I think a 10mm bolt to see the old vent hole.
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It turns out the rubber trans tunnel cover appears to be touching my hose fitting so I'll be taking that back off to trim a bit. Should be able to get a good pic from the top side.
Edit: The reason for the tight clearance is that I'm running the Savvy underarmor TT with a 1.25" BL and clearance is tight as a result.
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Nothing was there. I drilled and tapped a new hole. Like I said, I saw this exact mod somewhere but I can't find it now. There is a somewhat similar mod that shows up in my searches but it includes some copper pipe fittings and looks somewhat cobbled together IMO.
The hard part was making sure the metal chips didn't go where they shouldn't while drilling and tapping.
Ah! Ok - I figured there was a pre-existing vent that you had extended. Did you remove the shift tower to do it?
Yes, but that is easy to do from the top through the shift tunnel. The hard part is that it's not made to be disassembled so you have to be careful to keep the chips out of the moving parts.
I made a little D-shaped cardboard tube that fit tightly into the cavity. Then I stuffed that paper towels. Then I drilled through the aluminum into the cardboard tube so all the chips were capture in the tube stuffed with paper towels. I just plugged the hole where the old vent was with a bolt and some RTV.
Here's a better shot of the new vent. And you can also see the head of the bolt that is sealing the old vent opening.
Just got the rebuild from high-impact installed and it made an amazing difference in how the Jeep drives.
Mine pops, forcefully, out of reverse when I'm backing up against any load (such as up hill, or against a rock or log). To the point where it's a liability when wheeling. So I guess I'm gonna be diving into this sooner than later.
