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4spd w/Cruise Control - Clutch Off Switch?

PurpleBeeper

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I know cruise control didn't come on 4-speed cars from the factory. It didn't come on 440 six pack motors either, but this isn't stopping me. I've got the whole setup (for an automatic) 75% installed....but I realize that I need to have a "clutch pedal/cruise disengage switch" in addition to the "brake pedal/cruise disengage switch"....duh.

So, I'm sure I can fabricate some small bracket to mount a switch on the clutch pedal lever, but what switch should I use??? Now, the brake switch disengages the cruise once pressed, until you re-set the cruise on the turn signal switch. I'm thinking the clutch pedal switch would need to be basically the opposite of the brake switch....once released the switch disengages the cruise until you re-set it.

Any suggestions or ideas? Suggested switches from a junkyard ("brand X") or local parts store? THANKS FOR ALL YOUR IDEAS & SUGGESTIONS!
 
I did that on a ’70 Road Runner, six-pack 4-speed back in the day. IIRC, made bracket, added a second pedal switch, wired in series with the brake switch, either switch kills the CC. Ran it for years no problems.
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I did that on a ’70 Road Runner, six-pack 4-speed back in the day. IIRC, made bracket, added a second pedal switch, wired in series with the brake switch, either switch kills the CC. Ran it for years no problems.
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Thanks 72RoadrunnerGTX...and by the way, your cruise/carb throttle bracket for the six pack worked out GREAT! How exactly did you set up the 2nd switch on the clutch pedal???
 
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You could just add a brake switch to the to the clutch and splice it into the wiring.
Hey MCode, walk me through that idea please. I'm sure it would be a WHOLE lot easier if I could just add a 2nd Mopar brake light switch on the clutch pedal.

In my head (could easily be wrong), I'm thinking that I need the cruise to disengage with even a slight push on the pedal. The brake pedal is already set up like that so your brake lights come on right away when you push the brake pedal. However, the travel on the clutch pedal is WAY longer & I'm "thinking" I need a clutch switch that is being pushed all the time with the clutch pedal in the UP position & when the clutch pedal is pushed the switch is released and that turns off the cruise. I'm "thinking" that if I just put in another Mopar brake switch, the cruise would only disengage if I pushed the clutch pedal to the floor basically.... no Bueno. Does that sound right?
 
Get a second CC brake switch, the CC portion is a small pigtail, two blue wires, IIRC. It’s a simple normally closed switch, pedal up, circuit closed. Build a bracket to secure the second switch to the clutch pedal movement similar to the brake switch. Pull one wire from the connector at the brake switch, connect the clutch switch leads in series with the brake switch. Both pedals up, circuit closed, either pedal switch will open the circuit.
 
Get a second CC brake switch, the CC portion is a small pigtail, two blue wires, IIRC. It’s a simple normally closed switch, pedal up, circuit closed. Build a bracket to secure the second switch to the clutch pedal movement similar to the brake switch. Pull one wire from the connector at the brake switch, connect the clutch switch leads in series with the brake switch. Both pedals up, circuit closed, either pedal switch will open the circuit.
Did you drive your car a lot with that type of cruise setup & did it work OK? That would sure be A LOT simpler than what I've been thinking about. I'm concerned that the clutch switch wouldn't de-activate the cruise fast enough since I'd have to have the clutch pedal to the floor to hit the switch & while pushing in the clutch pedal the engine would rev up a lot....or am I worried about nothing?
 
That car was my daily driver for years, used the CC quite a-bit, no issues. Not sure I’m following your question, both switches should be adjusted to open the CC circuit just off pedal rest position. While freeway driving, typically tended to tap the brakes first at sudden slowdowns anyway. That would disengage the CC prior to downshifting. The clutch pedal switch would be more of safeguard for the engine.
 
That car was my daily driver for years, used the CC quite a-bit, no issues. Not sure I’m following your question, both switches should be adjusted to open the CC circuit just off pedal rest position. While freeway driving, typically tended to tap the brakes first at sudden slowdowns anyway. That would disengage the CC prior to downshifting. The clutch pedal switch would be more of safeguard for the engine.
Gotcha. Here's what I'm asking. It makes sense that BOTH pedals should disengage the cruise just off of "pedal rest", so how did you do that with the clutch pedal?

The more I think about it.... the brake switch is always being pushed at "pedal rest", right? So, when you push the brake pedal, the brake switch button is RELEASED, not pressed, and that lights up your brake lights (& turns off cruise). So, I would need to mount another switch in a similar way, right? I push in the clutch pedal, the added switch is RELEASED, and the cruise turns off. Does this sound right???
 
I added aftermarket cruise to my 1972 Chevelle. It had a 350 and a 4 speed. I never did anything to it for a clutch drop out switch and never had a problem with it disengaging. Of course, I always hit the disengage button or tapped the brakes before I stepped on the clutch or popped it into neutral. Just use the brake switch and be conscious of CC engagement before you hit the clutch.
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