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Old 12-24-2021, 12:47 AM   #1
tdangle
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Join Date: Mar 2005
Location: Jurupa Valley, Ca
Posts: 1,210
Last step in Disc Brake Conversion

I've run into multiple problems with this conversion. First of all the required front end rebuild did not go too smooth. I had all the parts but just the actual rebuilding was nothing short of a huge pain in the ass. Now the front wheels have to much camber (its visible) with almost no shims in place. Need to talk to a alignment shop about this.

I purchased a 71/72 C20 master cylinder and booster unit to replace my dual 8" booster and have the correct MC. The booster won't bolt up as it needs a deeper firewall mounting bracket. In my research, I found the brake calibers are the same on a C10 and C20, just the rotor is a little larger. Back brake wheel cylinders are 1 1/8 vs 1" bore, so I figured I could pretend its a C10 and use my 8" dual booster and a C10 MC (difference is 1 1/4 bore vs 1 1/8 for for the C10). Should work. New AC Delco MC, PV2 proportioning valve. Just finished the lines, need to bench bleed MC and bleed entire system. I'll let you know how it turns out.
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1970 Custom Camper/C20 , GM Crate 350/7004R, Dana 60, factory AC
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