Search the Community

Thought I would document my process of installing late model (1994-2004) Cobra Brakes on the Front of my 1970 Convertible. In particular, how I used late Model Baer Rotors with my 1970 drum brake hubs. The starting point was finding an NOS set of late model Cobra front brake calipers and pads, which I did, on Ebay. Then I used the Mustang Steve bracket kit, which worked perfectly. Mustang Steve also supplies a centering ring that is used to keep the modern rotor centered on the old hub. The ID of the Baer Rotor hole is about 71mm The Mustang Steve spacer ring is about 70.5 mm OD. So it is a nice press fit. The first couple of pictures show the rotor on the hub with no centering ring, the bare hub, the hub with the centering ring, and then the rotor on the hub with the centering ring. Worked nicely. The unexpected problem I ran into was with my new Foose Wheels. They are Foose Knuckles, 17" x 8", with a 1mm offset and 4.5" backspacing. When I tried to mount the wheel on the hub, the brake caliper hit the inside of the wheel spokes. (oops...). I needed about 1/4" to clear the rotors. After some searching, I found some 9mm thick hub-centric spacers, and they provided the needed clearance. The new 9mm spacers had a hole diameter of about 70.5mm, so they also had a gap to the old drum brake hub. To avoid potential problems with the spacers moving around, I ordered 2 more Mustang Steve centering rings. I had to take a few thousandths off of the OD on my bench grinder, but I got a press fit into the 9mm spacers, and they worked great. The remaining pictures show the second spacer ring on the hub, which is sitting on top of the rotor spacing ring, then the 9mm spacer, and finally the Foose wheel sitting nicely distanced from my brand new Cobra rotors.

I am looking for a set of 1970 through 1973 front drum brake hubs with 5 lugs. This is needed to complete my front brake build for my 1970 convertible, which will use 2004 Cobra front brakes and the Mustang Steve brackets. I have the spindles. Thanks!