[projectheaven]

Hello all.I have talked about this before but on my 72 olds cutlass all 4 of the rear brake lights are suppose to come but only two come on when i press the brakes.One on the left and one on the right. What do you suppose is causing this problem.I've checked all the wires and they appear to be fine.But I may have missed something that you guys may mention.

Thanks for the help in advance.