Tried to reply to your email Juan but your return address bounces back as undeliverable... Anyway, here's the info in case you visit us here again...
Hi Juan,
The kits you are looking for can be found in the ford racing parts catalog. You can buy them at Summit or any other local high performance dealers that carries the ford parts.
The complete kit is part number M-2003-K
The kit is made for 87-93 models, your 85 will have to be upgraded to the
87-93 struts if I can remember well, all other parts should be in the kit, but check before you buy...The other kits are M-1102-C for cheep rotors, but again this will require that you upgrade your spindles, struts and brakes to 87-93 as they don't fit the pre 87 spiindles...These rotors have a large center cap that don't fit all 17in wheels, including the cobras.. so again check before you buy that the wheels you want fit...
The rear axel kit is the M-1126-A which basically consists of 2 ranger axels and new drums...
The problem with the pre 87 cars is that you have to jump 2 generations to get good brakes...
Hope this helps,
Good luck
Serge