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01-18-2020, 01:02 AM | #1 |
Registered User
Join Date: Nov 2019
Location: Olds, AB
Posts: 17
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Re: Hydroboost Mounting Plates
An awful lot to read here, but I haven't seen anything about brake pedal ratios.
I have seen a post on this message board about a guy that cut off a second pedal arm and used it as a "bellcrank" to maintain the the correct pushrod angle. I'm going to be using a reman hydroboost from an 85 C30. The two bolts on the plate that it is mounted to seem to be a direct fit to the firewall. See attached image. Now I have found your "adapter plates". My 1966 GMC was manual drum brake, which had a higher pedal ratio than what you should have for "power brakes" Does your kit include provisions / instructions for re-drilling the pedal and moving the pushrod lower? Do you use the OEM 1966 pushrod? I want to get this right the first time, and everyone says that you are the guy to talk to. |
01-18-2020, 11:03 PM | #2 | |
60-66 Nut
Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,246
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Re: Hydroboost Mounting Plates
Sorry but I do not have any instructions for installing a hydroboost. I simply have not had time with working 80hrs/7 days a week every week every month.
Most people do p[refer to drill a mounting hole in the brake pedal 1" down from the original manual brake pushrod mounting hole. I do recommend cutting both the original pushrod and the hydroboost pushrod and welding them together at the correct length. This will allow you to have some adjustment. It can also be done with aftermarket brake pushrods or just off the shelf parts to fabricate your own. Yes my booster bracket does mount your booster/master assembly correctly and solidly using the mounting holes that GM engineers provided to attach directly to the pedal bracket on the inside. No drilling extra holes in the firewall that may or may not come out on the inside in an ideal location. Quote:
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Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE |
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02-18-2020, 09:13 PM | #3 |
Registered User
Join Date: Aug 2018
Location: TN
Posts: 30
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Re: Hydroboost Mounting Plates
Hey , I just wanted to see or know what you guys are running for the MC ... part #s would be even better... I’m running disc/disc, I’m trying to get some options together and pick the best! Also can I put my line lock in this too
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