So basically you could leave it in 4wd for the run and switch to 2wd when you go to make the turn to pick up your time slip, since it's not going to switch out at WOT anyway

 

Mine definitely does switch out. I left in 4hi a while back and like an idiot (nervous) hit the 2wd button about 50 ft out by mistake. Started blowing the rear tires off. Ran about an 8.80 or some crap like that. About a second after the 1-2 shift still works best for me.

 

i wish mine would switch. damn manual t-case

 

Buddy had a 2007 RCSB 4x4 with a 4.8 said it went about 3 seconds faster through the 1/4 in 4lo. Hes actually crazy enough I believe him!!

 

I miss having a posi-loc on my truck. 2 wheel low is pretty tough. I used to take a 4.3L blazer out and and floor it. It wouldn't do anything in first but when it shifted to second it would pull the truck sideways. I never took it faster then about 40 as it didn't want to shift into 3rd, and sounded like it was going to blow.

Nice thing about having cheap trucks to abuse.

 

Wouldn't the truck redline before you even get to half track? I have never tried this, but from my experience playing with 4LO, it seems it would top out at about 40 or so. Please correct me if I am mistaken.

 

Ive never tried in my truck. I dont remember if he said anything about bouncing the rev limiter. I think he said he was doing about 80 in OD. I know a few years ago I was reading some test drives in Car and Driver and every 4wd they tested they tested top speeds in 2wd, and 4lo. They all topped out in the mid 80 range.

Personally Ive run in 4hi at speeds around 100, but would never try anything more than about 30 in 4lo, and that was just to prove to a hard hooking WS6 T/A that trucks could play too

 

i make sure to do this when i go back to track i sprayed 7 times off line with 125 shot in auto4wd lol knock on wood nothing yet has happened

 

Has anyone broken any parts launching and running in 4HI? Like front diff, transfer case, etc?

 

no, not yet