itsajeepthing91

How many people on here have had the 6 speed in their JK replaced? At 20,000 km my jeep started making a whining noise the dealer replaced transmission under warranty. I have put 10,000 km on my jeep since and any time I go wheeling and get my tires spinning in mud or on ice I feel like I'm being to hard on a transmission that just can't take it. Anybody have any stories of how tough the NSG-370 is to put my mind at ease?

Also how many 6 speed owners experience a rough shift from 1st to 2nd? When I make this shift I find at times when coming out of 1st it feels knotchy and drops rough into 2nd. About a 1000 km ago I switched to mopar synthetic tranny fluid and have noticed a big difference. I'm hoping over time the shifting will become smoother. Anybody find anything else to improve the shifting?

rinkishJK

I noticed when I changed my tranny fluid to amsoil synthetic manual fluid the shifts are alot smoother.

sent by rinkish with a phone.

tpm152

It is very variable for me. Some days (even from stone cold) it will shift silky smooth. Other days every time I shift from 1 to 2 it feels like my gears are lubed with sand

itsajeepthing91

Mine is very inconsistent as well somedays it slides like butter others I cringe from every red light or stop sign.

largo

Just a personal opinion, but I think the 6-speed tranny, clutch, pressure plate, and bearing are piss poor when you consider their in a product that is meant to be taken off the road and used. I have never had problems with any of the trucks I have owned with 6-speeds, but the JK tranny is questionable in my mind.

itsajeepthing91

So far through personal experience and research I am coming to the same simple conclusion "piss poor".

Vincent

What would be a good upgrade to the stock tranny w/ the 3.8?

itsajeepthing91

x2 I have done a bit of research but haven't found to many alternatives to the nsg370

itsajeepthing91

Bump.... Hoping to hear more 6 speed owners experiences with this transmission.

Dralphy

My 6 speed is usually rough going from 1st to 2nd gear when the Jeep is cold, but once it gets warm it doesn't do it anymore. I've gotten used to it now, but it was annoying at first wondering if my gears were messed up.