300zx Brake Pad Installation

[Alch]

I'm doing a 300zx brake upgrade on my 240sx. I'm using 26mm aluminum 300zx, and the kit that i purchased came with all hardware except the (anti squeal?) shim kit which you generally buy with oem pads. The guys at the local autozone just say to put some brake lube/grease on the back of the pads and not to worry about using any shims. My question is do i need to spend the $30 on the brake shim kit from courtesy or is the lube alone fine?

[GhostDriver]

I just lubed mine on my S13 calipers. I've been fine for months.