well bj answered before i got to it
rear lube 75w-90 or 80w-90
wheel cyl looks like this
to look @ it you pull your wheel off, and remove the brake drum, it is the part that pushes the brake shoes to the drum.....& bj was right, behind the backing plated, is usually the axle seal if greasy
It looksblack and greasy and its coming out of a small hole in the face of the brake drum. I will pull it apart this weekend and see where it might be coming from.
Here's an idea. Does your ebrake work? Also, are you loosing brake fluid and your brakes working really bad.
My ebrake works fine. I havnt checked to see if Im loosing brake fluid. The brakes work fine. Ive only have one problem with them once. One morning when I hit the pedal to stop it was really stiff and it didnt stop me very well. It did slow down, but it only lasted a second and then it was back to normal. It has only done that once.