daddyzzs

Does anyone know of a better transfer case of a 04 Z71 1/2 ton? I think my is going out and will need a new one soon...Any help would be great!

andrew383

iTrader: (14)

do you have the auto trac?if yes you could go with the non AT.the auto trac TC has clutch's inside of it that do wear out kinda like a posi.

SynergyV8

iTrader: (1)

If it's a manual shifter look for the New Process 241. Electronic push button try the NP243. It's a 3/4 and 1 ton transfer case for GM vehicles, and many were found on the 4L60E so they'll bolt up in place of your current transfer case.

You'll get the usual 1:1 4HI, and a nice steep 2.72:1 4LO with big block and diesel strength.

dewmanshu

iTrader: (4)

I have (2) autotrac for the 1/2 ton. One that's a local rebuild with low miles (under 2500) and one that's a remanufacture that has zero miles. They were for my 2000 silvy Z71. PM me if you are interested...they aren't heavier duty than yours but will cost way less than a new one for sure. WAY less. I can't find the link but you should see the torque ratings of these things. Crazy amounts, no reason to pay more for a "bigger one" IMO.

Why do you think yours is going bad anyway?

SynergyV8

iTrader: (1)

Bigger, thicker and more material of all the internal parts, better oiling pump, stronger case. Used in high torque or off-road applications...or for anyone looking to never replace a transfer case again. An example would be comparing the 4L60 to the 4L80.

I will never let a computer decide for me when I should and should not be in 4wd. By paying careful attention to the terrain in front of me, I know ahead of time if I need the extra traction from the front tires. Leave the auto 4x4 stuff for the women.

silveradol33

iTrader: (30)

I love how u know everthing.

You will not bolt a 3/4 or 1 ton case to a 60e, splines are different, it will not line up. You would have to change the input shaft in the case to use a 3/4 ton case on a 1/2 ton truck.

thunder550

iTrader: (70)

There are plenty of guys on the boards here (myself included) who launch at the track in 4wd...we're talking trucks that put down 700+ lb-ft of torque while brake stalling. I have never heard of a 1/2 ton transfer case breaking. These things are strong. I checked out the torque rating once awhile ago on the MFG's web site and they are rated to something like 2500 lb-ft.

The low range you talk about is pretty standard and is the same as the half ton t-cases.

dewmanshu

iTrader: (4)

I was using auto4wd when I first had my truck and the plunger got stuck in the axel. Haven't used it since. I prefer pushbutton 4wd over stickshift 4wd is all. If you can't trust that, you shouldn't trust EFI over carb.

SynergyV8

iTrader: (1)

I got a chuckle out of this. Apparently the Np241 on my Tahoe is not bolted to a 4L60E.

Do your research son before making an a$$ out of yourself. The NP241 comes in a 27 spline and 32 spline version on GM vehicles. What's the spline count on the 4L60/700R4? 27. Guess what else Mr. Know it all...it lines up too! The pattern is the same 6 bolt "Chevy" circular pattern the General always uses.

hmatiak

iTrader: (1)

If ya got deep pockets: http://www.atlas-tc.com