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-   -   push button 4wd (https://www.performancetrucks.net/forums/gm-drivetrain-suspension-22/push-button-4wd-483872/)

04herod 06-11-2011 09:19 PM

push button 4wd
 
Ok guys I converted my rcsb from push button 4wd to Awd and kind miss being able 2 play n 2wd. I was wonder what the push button t-case could handle and if I would need 2 kick it out o 4 hi once I got out so far.thanx

04herod 06-12-2011 01:26 AM

Also is there like a oil clip upgrade like I did in the nvg149 that's n my truck now

andrew383 06-12-2011 07:41 AM

Trever1t pushed 600+rwhp and 700+rwtq through his autotrac case soooo....
If your gonna do it i would get a non autotrac case...

04herod 06-12-2011 05:26 PM

I was going 2 just use my factory t-case which has the auto 4wd.

supersub 06-12-2011 06:10 PM

over 700 rwhp/rwtq on my push button auto-trac and still going.

dewmanshu 06-12-2011 06:36 PM

yep, plenty of power here as well.

04herod 06-12-2011 07:44 PM

Sweet do u guys run all the way n 4 hi or kick it out

supersub 06-12-2011 08:01 PM

all the way!

trever1t 06-12-2011 10:07 PM

I always try to get it back into 2wd but trying to reach that button while pulling G's is difficult ;)

I have to disengage 4wd after I'm fairly deep into 2nd.

04herod 06-13-2011 12:14 AM

Well I was just worried bout breaking sumthing by trying 2 kick it out of 4wd on the fly at wot.

Goose33 06-13-2011 12:18 AM

ive always heard in 1/4 just to leave it in??

04herod 06-13-2011 01:48 AM

Hum I haven't really heard much is y I am asking.lol

dewmanshu 06-13-2011 05:24 AM


Originally Posted by trever1t (Post 4716435)
I always try to get it back into 2wd but trying to reach that button while pulling G's is difficult ;)

I have to disengage 4wd after I'm fairly deep into 2nd.

This is my tatctic. I try to disengage while in second.

04herod 06-13-2011 08:26 AM

So u guys that disengage do this at wot?

trever1t 06-13-2011 09:46 AM

of course!

04herod 06-13-2011 10:07 AM

Haha just making sure.lol thanx

swift700 06-13-2011 10:25 AM

Mine doesn't seem to want to disengage under load. It comes out of 4 when I let off usually.

04herod 06-13-2011 10:47 AM

Hum that's no good. Do u have the auto trac case

budhayes3 06-13-2011 11:45 AM

There seems to be some debate as to whether the 4wd will disengage at WOT when you hit the button, some time after you launch (like deep 2nd as Bill does). Some guys have reported that theirs stays locked in until they lose some throttle angle, while others report that it disengages shortly after they hit the button (how they know that it's actually disengaged is beyond me, I'm assuming that the truck feels like there's less drag on it or something).

I'm curious now...I have the push button auto 4x4, and have been wanting to convert to AWD for some time now (just because it's cool and different, and I like the handling aspect of it). Unfortunately, my money situation is bad, and it looks like it will be quite some time before I can mod anything.

But anyway...is one better than the other? Seems like guys around here have pushed some major power through both the NVG-149 as well as the AutoTrak selectable t-case...are they both basically comparable as far as how much abuse they can handle, or is one stronger than the other?


Originally Posted by 04herod
Also is there like a oil clip upgrade like I did in the nvg149 that's n my truck now

Yes there is, I did mine when I swapped in my FLT Level7 65E...

Go to post #60 in this thread: https://www.performancetrucks.net/fo...finally&page=3

trever1t 06-13-2011 11:50 AM

I can definitely tell when I get it back into 2wd...seems to be hit and miss with some trucks being able and others not.

budhayes3 06-13-2011 11:56 AM


Originally Posted by trever1t (Post 4716676)
I can definitely tell when I get it back into 2wd...seems to be hit and miss with some trucks being able and others not.

So yours goes back into 2wd when you hit the button at the track Bill? That's good to know. IIRC, when I was testing mine it didn't until I let off the gas a bit. I wonder if there's something in the tune that can address that? :shrug:

What's your opinion on which T-case is "better" bud? You have the AutoTrak like mine and your truck rocks...makes me think that I should just stick with my current drivetrain and fix what's broken in it. It will be less money and less hassle than going AWD :hmmm:

trever1t 06-13-2011 02:01 PM

Yeah, pedal down hard and it will disengage. One time it didn't or I forgot :P and as I got over 110mph I really knew I was still in 4hi :eek:

As far as hardware I could tell you.

dewmanshu 06-13-2011 03:22 PM

yeh you can tell. 4wd is just rough feeling and as Bill says when you get to 100MPH and then crack 110 it feels like you are breaking into the atmosphere from space. I floor it from the line and never let out.

I read some torque specs on these units a while back and they are just ridiculously high. I would never, ever go to awd. 2wd is too much fun and when shit gets serious 4wd is a blessing.

budhayes3 06-14-2011 08:41 AM


Originally Posted by dewmanshu (Post 4716792)
yeh you can tell. 4wd is just rough feeling and as Bill says when you get to 100MPH and then crack 110 it feels like you are breaking into the atmosphere from space. I floor it from the line and never let out.

I read some torque specs on these units a while back and they are just ridiculously high. I would never, ever go to awd. 2wd is too much fun and when shit gets serious 4wd is a blessing.

All good info...I'm thinking more and more about just leaving it alone and doing the gears and locker...less work, less dough. I must say, I love the auto 4x4 in the rain, really helps out. Once I get my driveline sorted out, I must get to the track and see what she does...been a long time and a lot of mods since I ran the 1320 :nod:

dewmanshu 06-14-2011 08:48 AM

the only debate concerning running in 4wd that I see as a questionable ordeal is running in auto or 4wd in the 1320. Plenty on here use auto but i have broken my setup with auto (not at the track though). Hell I haven't used auto since 2005. 2wd or 4wd only for me.

trever1t 06-14-2011 09:44 AM

Agree. Never use the auto except in heavy rain or snow. Launching in auto would put a tremendous shock on it.

04herod 06-14-2011 10:07 AM

Wow this is all great info didn't expect 2 get this much feed bak thanx alot guys. But I have no compliants with the Awd other then playing in 2wd when ever u want is fun. But it is nice 2 pull out n traffic and not have 2 worry bout spinning if I really need 2 get on it. I am sure u guys know what I am talking bout.lol

budhayes3 06-14-2011 11:43 AM


Originally Posted by dewmanshu
the only debate concerning running in 4wd that I see as a questionable ordeal is running in auto or 4wd in the 1320. Plenty on here use auto but i have broken my setup with auto (not at the track though). Hell I haven't used auto since 2005. 2wd or 4wd only for me.


Originally Posted by trever1t (Post 4717275)
Agree. Never use the auto except in heavy rain or snow. Launching in auto would put a tremendous shock on it.

Oh yea, I've read here many times not to launch in auto 4wd...I know that I have an old thread floating around either here or in the GM General section about launching in 4wd...I'll see if I can find it...


Originally Posted by 04herod
Wow this is all great info didn't expect 2 get this much feed bak thanx alot guys. But I have no compliants with the Awd other then playing in 2wd when ever u want is fun. But it is nice 2 pull out n traffic and not have 2 worry bout spinning if I really need 2 get on it. I am sure u guys know what I am talking bout.lol

Cool deal brother :cheers:

budhayes3 06-14-2011 11:46 AM

Here's a good read...I may go through it later and see if it's sticky worthy...

https://www.performancetrucks.net/fo...=launching+4wd

Goose33 06-14-2011 05:12 PM

This is good info! I know some diesel that leave in 4wd when at the track. As far as auto I'm not sure if I have ever even put mine in auto haha


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