2004 hd power booster leak
 

Help, how do you know if it is the brake master cylinder or the power steering that is leaking at teh booster? We just did a brake repalcement on the rear now were loosing fluid but for some reason the brake cylinder and power steering are low at the same time, is that a coincidence or does one affect the other?

Its leaking where the two meet each other on the bottom.

Re: 2004 hd power booster leak
 

Hydroboost brakes I take it? I am going to say coincidence on both fluids being low at the same time. I'd start by pulling the master cly off and seeing which is leaking. However I have not seen a hydroboost leak, yet. Let us know what you find or it you have more questions.