Ok, so here is a little progress. I was able to get the inner bearing I needed yesterday to mount the LTD rotor onto the Mustang spindle. The part that works is the standard drum inner wheel bearing, Timken Set6. The outer was even easier, I had the wheel bearing for it already as it was the out for the Mustang drum. Rock auto lists that as A1 for the part number, BCA/National.
So I've got the rotor mounted on the stand now. I tightened the nut down on the spindle and the rotor spins nice and freely. I'm going to try and get the fasteners I need today to bolt the brackets up to the spindle and see why they want you to drill the caliper, grind it and face the mounting ears.
I'm also going to try and find a race shop that stocks 2 piece rotors so I can try and match the drum hub with a set that has the same measurements as the LTD rotor so that we can use 1 bracket for everything.
I suppose I'll pull the splash shield off of my 67 in order to mock everything up properly. I'll provably do that next weekend.
So I've run into a minor problem. The brackets I was loaned wont fit over the rear of the hub on the rotor. I am going to try and flame cut some flanges next weekend with a large enough center hole and no mounting ears on them. From there I can space out the mounting ears I will need.
Pics:
brake brackets pictures by 300zeex - Photobucket
Also, I see why both Cobra Automotive as well as the other vendor say to face the caliper ears and drill out the threads. I Think I might be able to make the brackets work just fine without doing this. I will provably need a tap to clear out the thread all the way though the caliper body but no other modification of the calipers should be neccissary. I tried running the bolt all the way through without any success, it got stuck at the end.
The rotor is the 70-72 LTD rotor. You could definately have the inner part of the rotor machined down to make it fit these brackets but there is still no garauntee the calipers would line up with the rotors using this bracket/rotor combo. There is just enough space to enlarge the hole in the bracket if so desired. Thats why I'm just going to make my own.
Part of the reason I wanted to see some already made brackets is that I wanted to understand why they want you to face the caliper and drill the threads out. I understand that now but I personally don't believe it is neccissary. I think the bracket can be made to bolt up the calipers without modification.
The 70-72 LTD Rotorpros rotor looks like it'll work, but what about bearings to put this rotor on the 65 V8 drum soindles. Can anyone help with that one?
Ok, so here is a little progress. I was able to get the inner bearing I needed yesterday to mount the LTD rotor onto the Mustang spindle. The part that works is the standard drum inner wheel bearing, Timken Set6. The outer was even easier, I had the wheel bearing for it already as it was the out for the Mustang drum. Rock auto lists that as A1 for the part number, BCA/National.
Hi. Do you still have this bracket drawing available?I wouldn't worry too much about ease of maintainance. A decent quality rotor should last a long time, even on a daily driver and about forever on a weekend driver. If you plan on a lot of open track weekends of other sorts of racing, then I can understand that it becomes more important.
Anyway, here are some pictures and a drawing of the Cobra Automotive brackets. With a disc brake hub and a Raybestos 6008 rotor (68 Full Size Ford), and after I spot faced the mounting surface on the mounting ears of the caliper, I needed to move the caliper ~1/8" inboard with spacer rings, so the offset of the caliper mounting ears was not quite enough. They are probably correct for Cobra Automotive drum hub and Raybestos hat+rotor combo.
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