What is all the chatter Im hearing about the 6spd? Is there trouble?parts hard to get? Mine has 90,000 hard pullin06 3500 6spd stock

 

the NV5600 is no longer made, and neither are parts. however, your safe. your 06 has the G56, an internaly sourced DC trans.

 

Its an 04 6spd Sorry for the error

 

well than my first statement runs true.

justbe easy on the shifts and use the clutch when shifting to save the syncros. change the fluid ~30K with some good quality fluid (Amsoil 5w30-MTF) and it will last a long time.

 

Thanks man, I was almost ready to go trade.This thing makes my living. How many quarts?

 

Yep 78k ad she's starting to grind on 4th. Changing fluid save her now?

 

My 04 is a little squirrely goin into 5th, Man I"m sweatin this one out! We pull every daylong and hard. Im thinkin about tradin it for an 06. Dont think I could stand a rebuild.I hear you feel like you"ve been held up when the bill comes.

 

Drew would be the one to ask on that. But if its scrubbin Id find somebody to rebuild before the parts run out.

 

I don't think that the parts will ever run out, its not like they were a rare production. I thought that GM used a similar version of that transmission. The G56 is built by Getrag which builds transmissions for Mercedes Benz. They have been good so far.

 

you can still find master rebuild kits for the NV5600. with the grinding it soulds kike you were trying to race a few times to manychangeing the fluid may help smooth things out.

GM used the NV4500HD for a while, the only thing the 4500 and the 5600 have in common are a few of the gears, past that they are VERY different. the 4500 uses gear oil, the 5600 uses 5w30.