Ive posted these questions all over with zero help my truck was lowered, now its lifted Anyhow, I ditched the t56 project and sold everything. Id like to switch to a nv4500 and manual t case. Heres my questions,

Which nv4500 do i need?
What tcase is a direct bolt up?
This is an 08, I think the vss is in the case so I need a manual case with it?
Is there another option, such as a nv3500 t case combo?
Any and all help is apreciated!

 

I know I'm not going to be alot of help here but are you fully decided on the NV4500?
I am eventually planning on a ZF6 to replace my NV3500 because its so loud.

Also have you seen the thread where the guy swapped the ZF6 into his Avalanche?

 

No def not fully decided. I just heard the zf6 required a body lift is that true?

 

The ZF6 is much heavier than the NV4500 and will def require a lift since the 2500 frame rails are 2 inches taller. I am not sure if the 4500 will. I am not sure you will get anything more out of six gears. I do know the early NV4500 have lower gearing than those used in the later model trucks. Anything 32 spline 6 bolt gm tcase should fit. A popular one is the NP6 manual shift case. There are automatic shift, manual shift, and awd tcases available for the nv4500.

you said something about t56. there is a t56 4wd tranny kit out there. i looked into it and it was like 6000 for the tranny and i didnt really feel like i trusted the guy so i bailed out on it.

 

What would be fantastic is if the nv4500 is the same length w a tcase as the 4l60e but I dont think Im going to get that lucky!

 

I dont know about the length, but I do know that you want a 241C 32 spline from an 88+ truck. Get one with 2 speed sensors. Cant help beyond that. Good luck!

 

I will look into it thank you!