Will this work?
 

Does anyone have any knowlege about gm's newer trucks? My 1999 GMC sierra 1500 4.8 v8 needs a new transfer case, and I plan on running this truck into the ground, so instead of throwing another POS electronic shift "on the fly" bullcrap T-case in it, I'd much rather throw a manual one in it. I've had nothing but problems with these electronic t-cases. What i'm wondering is if I cut a hole through my floor, will a manual t-case bolt right up in place of the electronic one?

ummmm...ok. What problems have you had? Also your computer is going to have fits if you take it out. Don't really know of any chronic transfer case issues with any of them. I guess you could do it but I'd try and figure out what is wrong with your truck.

The problems I've had include service 4wd lights, t-case failing to shift out of 4wd, t-case failing to shift into 4wd, and my truck makes HORRID noises while in 4wd. But from what your saying, it would be a pita to switch to a manual t-case?

I got a manual silverado and it isnt hard to do cuz the guy down the road ditched his electronic for a manual transer case.
took him a few hours.
finding trhe location for the hole is easy.
there is a pattern already in the sheetmetal for your cuts.
that what he told me at least.

what was the code #? had the same problem in my 2000 2500 and 2004 avalanche and both times it was the encoder in the motor. it would flash service 4x4 then go away. when u 1st start the truck it would be in 4x4 low or something except 2wd. 1 day my wife the avalanche and the transfer put it self in nutral and started to roll away

Hmmm too bad they didnt Keep rolling away ehh buddy????

and yeah man all that seems like the encoder motor. common and not too expensive. the internals them self of the cases are pretty similar. and very strong. so you wont gain strength one over the other. just get rid of that Shitty encoder. there is a kit floating around. it uses its own encoder and a cable/lever setup to shift the t case manually. No i dont remember were i saw it. but its out there.

No code, hooked up a scan tool, and there wasnt a code about the t-case. The service 4wd light will come on, and stay on, it wont flash or anything. The only way it goes away is if i turn the iginition off, then back on. And an encoder motor will help the no-shift issue, but it wont help the fact that the t-case makes disgusting noises lol the t-case is FUBAR

see heres were you could be wrong. If the encoder is wrong telling the motor its engaged stop turning and its not fully engaged THEN you will have some Noises for sure!!

Ahh, I see, but my t-case makes noises even when not in 4wd, I thought it was a wheel bearing at first becuase it was intermittent, but its not, and its ALOT worse when in 4wd. How could I tell that its just the encoder? one of the main reasons I would like to switch to a manual t-case is because of the reliability.

ive taken the motor/encoder assembly off. left it plugged in and manually put the t case in 2wd. made sure it was fully engaged and drove the truck. if the noises go away t case is fine and you need a motor. if the noises are still there get both.

going manual im not entirely sure if it will effect the ECU. i have yet to see transfer case codes come up on an engine scan. had to have a better scanner to read the 4WD "computer" codes.

How do I manualy put my truck in 2wd?

pull the motor off and actuate the lever thats behind it by hand. to the full forward(towards the engine) position and that Should be 2wd if im not mistaken??

Haha what if you are mistaken?! lol jk, ill get a second opinion from google. Ill try this out this weekend, then ill go from there. THANKS PIZZA!!!!

no pwoblam meng

and worst case if im wrong and you shift it. you will only just put it in low 4wd. you cant break it.

do yr self a favor and once its in 2wd pull the fuse. its the one under the hood if i remember right the one in the dash is the hubs only

whys that?

i thought you where still using the truck until u swapped it. the problems i had is when in 2wd and u shut the truck off when u started again it would engaged into something else. if u get in 2wd and pull the fuse theres no power to the motor and cant do anything

No, I have no problems with that, the truck is in 2wd, my friends truck does that, hell start it and it will be in 4 hi. I think they changed the t-cases in those trucks around 2003. My buddy has a 2004.

UPDATE! I've been listening to the noise more carefully, and it seems to only make the noise when the truck is in over drive (38mph+) I dont know why these trucks shift in to OD at such a low speed but thats irrelevant. Let me know what you guys think of this.

does the noise get louder with speed?

It doesnt seem to, its barely noticeable on the highway, its just more on main roads at about 40-50mph (and when the truck is in 4wd, its 10x worse)

l with out driving it. and without you manually putting in a gear and trying im gunna say T-Case. but it would be bst to have a tranny shop look at it for a Definite answer then go from there.

Yeah, t-case makes sense, my buddy told me hes done quite a few on these trucks, ill have somebody look at it. Any idea where i could get a t-case for it? I believe its an nv246

i know everetts in brockton is pretty good for parts and decent on price And they offer a warranty.

Haha, wow, she should have her speaking privileges removed lol

And thanks for the tip pizza, I have no idea where that is, nor have I heard of them, but ill look em up

I remember watching this for the first time on youtube not long after she said that mess. It hurt to watch...err listen to.