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post #1 of (permalink) Old 01-07-2002, 08:41 PM Thread Starter
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AMC 20HD Disc Brake Conversion.....

I am finally getting around to the Waggy Model 20HD disc brake conversion. I ordered the caliper brackets(AA-049-A)today from I will be buying the front waggy rotors tomorrow. I have decided to mount them behind the flange like everyone else. Now that I have seen the front rotor setup I have a better understanding of what everyone was talking about. I will use a set of front studs and drill out the rear flange to match the front rotor stud holes. I already have some Caddy calipers so I will just be waiting on the brackets to arrive. How do you decide where to mount the caliper brackets in relation to the rotor and also with regard to the bleed screw? Also, will I have to make my own bearing retainer plate since the drum brake backing plate will be gone, or is there a separate plate? Did anyone ever figure out how to modify the bearing retainer plate so it will fit through the rotor? Do you think I should modify the axle flange so it will fit the rotor or the rotor to fit the flange? I am thinking that I will modify the flange, that way I can get new rotors anywhere and not have to worry about them fitting.


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post #2 of (permalink) Old 01-07-2002, 09:20 PM
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Re: ??Ready to do AMC 20HD Disc Brake Conversion??

on thing about those AA brackets ( damn they are a BARGAIN) but teh bolt hoels are just threaded thru the 1/4 " plate, Im wondering if it would be stronger with a nut welded behind the hole? WILL and I talked about htis alittel and he didnt seem to think there would be that much force applied on the bolt holes, I guess if the bracket is is designed to cradle the caliper like the factory front brackets the rotational force is transfered directly to the axle, bu I think on these ( the calipers simply bolt on, no crael effect) I think there is going to be quite a load on those littel 1/4 threaded holes.

Ill have pics p[retty soon to show these brackets, and I think I will modify them slightly, add some more material to hold the thread of the caliper bolts and possibly some cradle type addon.hmmm


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