Ive been restoring my 1st gen for the past 4 years and now i got it running n driving the abs light is on ive cleaned all connections and the brakes are working great only thing i did do is get rid of the load proportioning valve in the back on the frame could this be the reason why the lights on? I did put a different rear in it as well but thats the only things ive changed

 

Yeaper that is it. if you unplug the black box behind the glove box it will go off. Some people will disagree but IMHO you are ahead of the game getting rid of that POS.