Best disks that fit under the OEM 15” Rally ?

[leftybass209]

I couldn't recommend drilled or slotted rotors... you just lose braking surface area. The braking system on these trucks remains largely unchanged from 71-96. I daily drive a 72 long bed with truck rallies and drop spindles in a densely populated area, and braking has never once made me nervous in modern traffic or left me wanting "more" stopping power. That said, its a relatively stock truck. If I increase power, i might look at some different brake options.

Side note: I originally had 2 inch CPP drop springs with the spindles and the truck could not be aligned and chewed tires fast. Some guys say these trucks can be aligned with 2 inch springs but not without longer A arms in my case. I decided to use Moog brand stock length springs on this build and the ride difference was immediately noticeable. I don't know what the spring rates are, but the CPP coils were softer and the CPP shocks didn't feel quality at all.