Contaminated Brake Fluid Repair Cost

We would have to see the vehicle to varify the problem but i would think you would be looking at less then that through our shop.

What contaminated your brake fluid? Most GM's use aluminum calipers which could very possibly cause binding.

If contamination is from moisture in fluid from old age, non syhthetic fluid absorbs moisture and needs flushed periodically. If is contaminated from wrong fluid in the system then the estimate I am sure reflects replacing any components that have rubber in them that the wrong fluid affected. The estimate can vary depending on location and labor rates and parts cost. Does seem a bit high though like Protech says.