Join Date: Feb 2003
Location: Kansas City, MO
Re: 67 L99 4L80 Project
Just a quick update. I'm trying to work through getting the pedals, brake master, proportioning valve, and clutch master mocked up. Already it looks like the Wilwood rod on the master is too short to reach the clevis so I'll have to figure that one out. I'm thinking about welding a coupling nut to the brake pedal clevis. Also it looks like the upper studs that go through the firewall on the pedal bracket may not be long enough for everything that's being mounted to them (clutch master plate, Wilwood brake master cylinder, and Wilwood proportioning valve spacers/bracket) so I'll need figure that out too.
I was looking at the clutch master cylinder kits from McLeod and Modern Driveline since it seems like some were having issues with home made kits or there was firewall flex on the ones that mounted directly to the firewall rather than the bracket under the brake master cylinder. I did get some feedback over on LS1Tech about the Modern Driveline kit and it was good so I pulled the trigger on it. It looks like it has the least amount of modifications to the car to make it work which I liked. I couldn't tell if you had to drill for the McLeod kit plus you have to use their clutch pedal. In looking at their bracket pics it looks like the clutch master cylinder hole was offset enough that you probably do. I'll post pics of the Modern Driveline setup once I get it put together.
I was thinking about trying to adapt the neutral safety switch off of a 70-72 Chevelle on to the 67 clutch pedal setup. Also I need to work out putting a switch on to kick out cruise control if the clutch is pressed. For that I was thinking about using a later brake switch for a Chevelle with cruise (I'll also need to replace the brake light switch to the same switch so it will kick out when the brake is pressed). Has anyone else worked this out?
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