well if you have LS you have 3wd once both back wheels start spinning.

 

I use 4wd: it creates massive torque steer on pavement.

 

Strange; I've had both fronts spin while in 4x4

The backs spin too. Seems like 4 wheel drive to me.

 

all the time? i noticed when i got stuck that only one front tire would spin but both backs were. and the 4th one would spin a little bit

 

I'm not sure about all the time, but I know they both spin. The evidence is in the dirt or snow because I've tested it.

 

put it in 4x4, put it in the air (on a car rack) and let the tires hang. Give it gas, and watch. Only 2 tires will spin. You might have both tires in the rear spinning.

 

Really eh? Even 06yz250f mentioned when he's stuck, one front spins and the other moves a little.

Maybe I have a specially made Canuck truck?

What I've done is, from a stop and in reverse, I've given it gas and checked where both fronts left skid marks in the snow. I could even see that the snow was being kicked up fom both sides.

Maybe I'm going nuts.

 

I have a LS 3.73 rear end, so I have 3WD!........(LOL)....

 

Im part stupid, so its hard to explain. When you turn, even in an open diff, the differential will feel the "slippage" and give power to the outter wheel, thinking it needs to move faster, in order to make the turn. So, when your front starts slipping, the differential gives power to the wheel with LESS traction. Not a good thing for off roading. If your in some mud, the differential could be feeling a slipping from both sides, and its trying to keep up by quickly shifting power from one wheel to the other.

Also, whe your in mud, with aggressive tires, they will throw mud/gunk with power or with out. I have seen numerous 2wd trucks splashing around in the mud. If you simply go by rooster tails, looks like they are 4wd, and locked front and rear, but in reality, only one tire is pushing.

Some cars are equipt with electronic traction control. I am about 100% sure our F150's don't have it, as Ford is advertising it as an upgrade for the Raptor version. Thats why I said do the lift. Getting all wheels off the ground will eliminate any "confusion" in the differential. The tire "slipping" the most will simply spin ( most likely front left). I don't have my truck with me today, otherwise I'd do it.

Oh, and you said "eh" !!! Silly Canucks !

 

Hmm, well I'm going to take your word for it MT. Obviously you know your stuff since you work on these biatches.

Next time I have someone with me I'm going to try a few skid tests again. That would be much easier for me to do since I don't have a hoist, eh?

 

I work on Mercedes man ! I play with these !

 

haha. but yea when i mean it moves a little, its nothing that helping the truck budge at all. my front left i know for sure spins like crazy, i covered my friends whole back window with mud when pulling him out.

 

Gotta love doing that ! ha ha

Ya, sounds like normal open diff working.

 

i have 3.73 limited slip rear diff and in the deep sand yes it does throw roosters if you bury it down to the axels and its level ground both wheels turn but if it is off camber or slight flex to the rear end it will spin the free wheel then its 2wd makes for crapy bush romping but does dig very deep trenches in 2wd up sand hills so i say 3wd 1 front and 2 rear unless you have it flexed out then 2wd 1 front 1 rear

07 5.4 extendedcab 4x4 6.5 bed 285/70/17bfg km2's