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Old 03-29-2024, 11:36 AM   #12
yernkie
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Join Date: Jan 2013
Location: Paola, KS
Posts: 20
Re: Summit Power Brake Conversion Issues

Quote:
Originally Posted by jocko View Post
is your truck a C10 or C20/30? The part # you posted appears to be a kit with booster and a new mc, so the correct booster-mc pushrod "should" have been included. I'm kinda surprised Summit would tell you the prop valve is unnecessary as it should also provide the electrical connection for your dash brake light that will indicate a circuit fail (i.e. not usually good business sense to advise against a safety feature - but yes your brakes should work without one - but I'd still install the one that came in the kit personally - the original block from your 68 is really only there to sense imbalance and trigger the dash light). Did Summit or the instructions state why you should hook your rear brakes to the front port? That is why I ask if your truck is a 1/2 or 3/4 ton truck - rear brakes to front port is normally a C20+ thing - but the part # you shared doesn't appear to be C10 vs C20-specific, so maybe it's based on a C20+ system, which is fine - just kinda curious.
It is a C10. I believe the pushrod it correct but it just needs to be adjusted (shortened). No prop valve came with the kit. I still have the old prop/distribution block that I may hook back up just to see if it makes any difference. The instructions did not say anything regarding front and back ports but the tech said to put the back to the front and front to back. My plan is to get the rod adjusted, bleed the brakes and take it for a test drive. If needed I can swap the front and backs on the MC pretty easily.
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