False. I always back into my driveway and have used the locker several times in the snow. It engages, however it usually does not help me get in the driveway. I have to use 4wd or shovel.

 

That's the slop I suggested taking out gently first (I said 'throttle', but meant moving the truck), then apply more power. Otherwise, there will be unnecessary wear, and crap contaminating the oil IMO.

Really? So what the heck does the 'TC off' button on the dash do? Haven't tried it, but curious to know. Thx.

 

I'd have to go back and re-read my manual for better specifics but basically it kills everything but one-wheel spin control, which it achieves through individual rear wheel braking. I know it would seem logical to assume there could not be individual wheel "spin" with the ELD engaged, but the system is hyper sensitive. You'll always get some dissimilar axle wrap/torsion due to differences in wheel traction from side to side, and the natural torsional spring in the axles. Once the torsional oscillation begins, the one wheel spin control goes ape squirt trying to retard the wheel that has unloaded and accelerated slightly ahead of the traction tire. It grabs the advancing side and now the traction side unloads and and springs forward. The side to side chucking can get pretty bad under the right conditions. The heavier the tire/wheel assemblies, the worse it gets. Pull the 60a fuse ( I don't remember if it's labeled Traction Control, or ABS) and the problem goes away. I'm curious as to how well the system would work in conjunction with a TrueTrac. The Raptor lets you completely disable the system.

 

I would like to thank the posters here for schooling me on how this system actually engages the axle lockup, and clarifying that what it was doing is in fact normal for this system. I was just used to the axle locks on my Kenworth, which operate differently (no slip is possible under any conditions).

Of course the owners manual doesn't get into this level of detail for something that most people wouldn't even care about, but now I'm aware!