got a 2000 tundra, we are original owners, replaced calipers and pads turned rotors because of front brake drag on old brakes. It is still doing it when it is cold (Arizona) it will free wheel, then after a few miles with a few stops it will drag when put in neutral on a roll. even in reverse. sometimes if you push on brake pedal quickly it will free wheel and i say sometimes as it is getting worse. 147k on speedo. could it be the abs, or brake booster or pedal rod under dash ( as it sometimes make a tha-rud) as you push the brake pedal. Or a proportional valve? Oh on occasion when start up cold the brake pedal will go way low as you put it in drive. then it will be ok as you are driving. Any thoughts?