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Discussion Starter #1
Good morning folks,
My 2008 Wrangler is at the trans shop right now and I am hesitant on replacing/rebuilding the manual transmission on it. It has the NSG-370 and I have heard a lot of negative things about it online. Has anyone had any experience with conversions? What works? Is it worth it or should I buy a refurbished NSG-370. Can they rebuild it with better parts? I do not know much when it comes to transmissions and any advice would be greatly appreciated.
Thanks,
Ray

On a side note when I dropped of my Jeep the guy drove it right into the side of his brick building. Thank God for steel bumpers!!! He is going to need some tuck pointing and I got one hell of laugh out of it.
 

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I haven't heard of anyone swapping the trans out for a different one in the JK. As far as I know, there are no differences in the internals over the years (minus the gear ratios).

What failed exactly?
 

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Discussion Starter #3
Synchro

It will throw out of 1st and reverse. Reverse with a grinding noise. If I am cruising in 3rd gear I have to hold it in gear or it will fall out occasionally. I read that this is a common problem with this transmission. I have 35s and a 3.5 inch lift and am not necessarily gentle on it off road.
 

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Cheaper to buy a whole jeep with the auto, than to do a swap. If the rest of the jeep is good, just do a rebuild. I would not buy a refurb, unless something is damaged beyond repair in your NSG.
 

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Discussion Starter #5
I read that it is cheaper to buy a rebuilt one than rebuilding it. My uneducated guess was that the syncho or gear I need is attached to the main shaft in the trans. I suppose I will have more info when the mechanic calls me back tomorrow. I hate having to drop it off somewhere, but trans work is not my forte.
 

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Ah, I would price out both in your area. If you get a good core refund maybe it would be cheaper. Labor is your killer, unless you do it yourself. Going to be spendy either way. A good tranny shop might be able to uprate your tranny in the rebuild.
 

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Discussion Starter #8
The trans guy said that all the places he called are sold out of refurbished nsg370's. All that does is lead me to believe that the trans is a POS. He couldn't find anything out about conversions as well. Looks like I will end up having to get it rebuilt.
 

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The trans guy said that all the places he called are sold out of refurbished nsg370's. All that does is lead me to believe that the trans is a POS. He couldn't find anything out about conversions as well. Looks like I will end up having to get it rebuilt.
Sold out on refurbs means there aren't a lot of cores in supply, which means most of the transmissions are still in the original vehicle...
 

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Discussion Starter #11
The trans was not worth rebuilding. I called around and found the best price at factorychrystlerparts.com $3035 plus $1000 core deposit. 3 yr 100,000 mile warranty. It just solidifies the fact that I can never get rid of it now. Not that I would ever want to. Worst part is I found out today that I have to have my second wrist surgery this year and will be in a cast for another 2-4 months. I won't have my shifting hand! I should have bought an automatic! The first thing my buddy told me when I got the Jeep. That is stands for Just Empty Every Pocket. It's all worth the joy it brings to me and whoever I take off the beaten path! I will let you guys know how it's running in a week or two.
 
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