You can't disable the anti-lock brakes (ABS) in a Chevy Astro van, not in a way that's safe or legal. The ABS system is integrated into the braking system and isn't designed to be user-deactivated. Any attempt to bypass or disable it would likely be extremely dangerous and could lead to loss of control, especially in slippery conditions. The ABS is there to prevent wheel lockup, a crucial safety feature.
If you're experiencing problems with your ABS system, it's critical to have it diagnosed and repaired by a qualified mechanic. Driving with a malfunctioning ABS system is risky, but attempting to disable it entirely is far more dangerous.
