Ever since new our 2003 Sonoma 4.3L extended cab 2WD can suddenly lose traction and spins into oncoming traffic on snowy or icy roads. Every time it happens it usually gives absolutely no warning and the rear end always spins out towards the ditch as it rotates around as it loses control. Coupled with this we have had some issues with brakes sticking or grabbing since new as well. At slow speeds even new brakes can lock up or grab in a pulsating pattern. The hotter the brakes get the worse the problem seems to get lately. I have driven a S10 pickup and other vehicles for many years without encountering this problem. New brake jobs, thousands thrown at this problem, different types of snow tires and adding weights in the box doesn't seem to help much either. The dealer and all our mechanics since 2003 have failed to be able to provide a solution to the issues we keep encountering. The last mechanic believes the booster pin was made too long which he says is telling system to put the ABS on while driving at speed and actually shortened it which for the first time in 13 years has helped somewhat but both problems continue. Does anyone know if the booster pin being too long is a manufacturing defect in this truck and could possibly cause these issues or knows what else might be the problem behind this? Many thanks in advance for whatever help you may be able to provide.