Re: Disc Brake Upgrade Reference Thread
You do not have to change the control arms if you don't want to. At a minimum you will need to change the ball joints to accommodate the disc brake spindles. You can purchase aftermarket 6 lug rotors that will work with the '73-'87 spindles. The Factory '88-'98 LD2500 6 lug rotors will physically fir the '73-'87 spindles, but the caliper will not line up with the rotor.
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