i have a 97 hydro brakesystem i noticed in the mornin 1st start up i will drive about 1/2 block or 2 and when i first apply the brakes them seem to grab real hard and lock up but after about a 1/4 mile or so it stops now the anti brake light and brake light are now flashing on off all the time,has anybody ever had this issue Oh and i know for sure i have a hydro system any help would be appreciate thx

 

cant answer abs deal.. but I know that the duallies are VERY sensitive to brake input. The rears ALWAYS lock easy on this generation.

 

ive never had any problems with my rear drums locking up but it sounds like possibly the abs module go have the abs codes checked