Manu3l Posted January 20, 2020 Report Share Posted January 20, 2020 Trying to change drum to disc brakes what are my options Quote Link to comment
Eric Posted January 20, 2020 Report Share Posted January 20, 2020 (edited) Use the search box in the upper right corner of the screen? Front or rear? Or both? What year is your truck? Edited January 20, 2020 by Eric Quote Link to comment
Manu3l Posted January 20, 2020 Author Report Share Posted January 20, 2020 1973 and rear is what I’m looking for Quote Link to comment
Stoffregen Motorsports Posted January 21, 2020 Report Share Posted January 21, 2020 Later 620 had balljoints and disc brakes. 720s had the same basic suspension/brake setup. Convert to the later suspension and get the disc brakes too. Quote Link to comment
datzenmike Posted January 21, 2020 Report Share Posted January 21, 2020 '78-'79 and up 620 and '80-'82 had basically the same disc brakes. '83 up graded to much larger caliper and vented rotor. Unfortunately there is no way to graft the later disc brake onto the king pin trucks or everyone would have done this years ago. The lower control arms are different length between king pin and ball joint trucks so basically impossible. It would be easier to cut the frame just behind a '78-'79 cab and weld onto the king pin frame. Torsion bars and everything forward. Quote Link to comment
FrankRizzo Posted January 22, 2020 Report Share Posted January 22, 2020 On 1/20/2020 at 12:53 PM, Manu3l said: 1973 and rear is what I’m looking for Drum in front and disc in rear?? . 1 Quote Link to comment
datzenmike Posted January 22, 2020 Report Share Posted January 22, 2020 Maybe he has the front conversion already. They don't work any better than drum on the rear. But discs are simpler, fewer parts, zero maintenance, easy and fast to change the pads and look cool. I sure wouldn't pay $300- $500 to convert but I might make my own caliper mounts and use Trooper rear calipers and rotors. Quote Link to comment
FrankRizzo Posted January 23, 2020 Report Share Posted January 23, 2020 Take it from me...the parking brake is a real pain in the ass though! . 1 Quote Link to comment
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