[Lowbowtie]

I'm thinking of doing a straight axle in my 99 ECSB. I hear that you need to change out the auto trac transfer case. :think:

I've looked under my truck and in 2wd the drive shaft doesn't turn. So my thought was if I did this and used 4wd I would have to lock the hubs and put it in 4WD all at the same time, and everything would work fine. :imo

I know I'll never have the use of AutoTrac again but Its Gay anyways. Please let me in on anyones knowledge about this subject. BTW how do you go about the ABS Brakes Issue.


This Forum :rocking:

 

[Andy]

Auto trac will burn up because it is constantly spinning (or something like that :think: ) DE will give you a better explination

 

[Lowbowtie]

Thanks Andy :bowtie:

 

[Grant]

I've looked under my truck and in 2wd the drive shaft doesn't turn.

How did you do that?

If your driveshaft isnt spinning, something is goofy with your t-case.

 

[Aberbaseball7]

Correct, on the auto-trac the front shaft does spin all the time. Or atleast it did on my 99 NBS so I dont see why yours inst spinning...

 

[Lowbowtie]

Yea The front Drive shaft doesn't turn unless its in 4wd of some sort. :think: I even had the wife drive the truck with me looking. When the truck is in park you can spin the drive shaft freely. :argh: Is this normal?

And it does have the AutoTrac Button. So I know I'm not too Crazy!lol

I'm gonna have to go look again. :stupidme:

What do you guys know about the ABS?
atriot:

 

[Grant]

:think: In park, it spins freely? WTF? It should NOT be doing that.

 

[Whifflebat]

I thought that as they get older and more worn it becomes possible to spin it...

 

[Dark Eternal]

no it should not spin, thats one of teh reasons you cant use it. Also the case kinda freaks out when it doesnt sence the actuator there.

ABS - fuck it, rip it out, you will no longer have the sensors on the front wheels so it wont work right at all. I cant tell you how all of this goes until the weekend when I test drive mine though, so keep tuned!

 

[Lowbowtie]

Thanks Guy's :worship:

DE POst back here when you get her back on the Road? :ninja: ow:

 

[black4x4]

then house come all the older chevys i see don't have the front shaft spinning when driving in 2 wheel? or is it that the auto trac case spins at all times when driving and the old the older t-cases such as np 205 203 208 don't spin all the time. and house come when i went to the dealer to get a new switch there computer listed my case as a np 208?

 

[Whifflebat]

huh?


NP246 - nbs trucks - autotrac - front shaft always spins

NP241(88-98 1/2 ton trucks), NP208, NP205 - - non autotrac, manual shift - front shaft spins only in 4x4

NP203 - old trucks - full time 4x4, i'm assuming the shaft always spins.