kookookachew

Ok, the more I drive my truck in the snow the more this bothers me, since the first good snowfall I've been noticing that usually after I spin the tires in 4x4, especially if I punch it, that once I let off the gas I can hear, and sometimes feel, the ABS activating, with out hitting the brakes. It almost seems like it has traction control, which I know it doesn't. I've also noticed that very rarely the ABS will activate on a normal stop(not sliding, no hard braking) when in 4x4. All seems normal in 2wd. Any ideas?