Quote Originally Posted by spawpoet View Post
If you're in a 280, I'm sure the extra weight of the chassis would be harder on various components of your brake system, and if I remember right the rear brakes on a 280 use a different wheel cylinder, and attach a little differently. Maybe it's a bit more efficient than a 240's, and you are getting better braking/generating more heat on of your drums than we are.
The 1977-78 280Z uses a different rear brake configuration (backing plate, wheel cyl, shoes, etc.) but the drums are the same. I discovered that when I ordered new shoes for my 75 280Z and discovered that they wouldn't fit because the PO changed over to the 77-78 setup.

Chuck