Downey disc brakes

Does anyone know what GM calipers that Downey uses in their rear disc brake kits for Toyotas? I'm looking at the ones with the e brake mechanics in them. They look like they would work well for a project I have on the go at the shop. My best guess based on the pic on their website was a Fiero. Any help would be apreciated, thanx.

The ones that you get with the Downey kit are front mid 80s Chevy Monte Carlo. On my 91 GMC c1500 I'm using ones off the rear of a 85 olds toronado. And they have the deal for the e-brake. Hope this helps.