electric ebrake or modded Caddy calipers
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Lead Driver
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electric ebrake or modded Caddy calipers
Hello all. I have been looking at whether to fab some late model ebrake calipers to my 75 Dana 60 rear, or use the 76 Caddy calipers I have, only with a modified version. I believe adding the electic motor calipers would be fun. But, since I have a set of the Caddy calipers, I was thinking that I might lengthen the ebrake arm by an inch, and see if the added leverage might help them considerably.
I hope to hear from others interested in this issue.
I'm thinking that if I lengthen the arm for the ebrake, that would increase the clamping force.
I hope to hear from others interested in this issue.
I'm thinking that if I lengthen the arm for the ebrake, that would increase the clamping force.
Elder User
Joined: May 2012
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From: Puyallup, WA
Lengthening the arms would provide more force, but would drastically increase ebrake pedal travel to the point where it would bottom out before you ever saw that gain (in fact, you'd probably lose clamping force due to the increased throw). It looks like it's all set up already, but have you considered a tcase brake? Very simple, plus it multiplies the clamping force through the rear end ratio.
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Lead Driver
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Lengthening the arms would provide more force, but would drastically increase ebrake pedal travel to the point where it would bottom out before you ever saw that gain (in fact, you'd probably lose clamping force due to the increased throw). It looks like it's all set up already, but have you considered a tcase brake? Very simple, plus it multiplies the clamping force through the rear end ratio.
Interesting, having a smaller set of calipers, in addition to the standard set on the rears, would provide a true 'lock 'em up' ebrake. It might look funky having two cals on each rear, but hey, it would be a great system. I guess the problem would be how to hook and attach the master cylinder and pedal or lever.
Logistics Pro
Joined: May 2010
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From: Regina, Saskatchewan
Have you considered looking into a set of rear calipers from a more modern vehicle?
Many modern vehicles use a plain ol regular caliper on the rear rotors, but are also machined to have a drum-brake set-up on the inside of the rear rotors for the e-brake.
All of the newer fords (2004+) use this set-up. It would be the wrong bolt pattern for our trucks, but the system is worth looking into.
EDIT:
You could alternatively use a rear diff E-brake. Everyone's got one of those (4x2 and 4x4)
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Many modern vehicles use a plain ol regular caliper on the rear rotors, but are also machined to have a drum-brake set-up on the inside of the rear rotors for the e-brake.
All of the newer fords (2004+) use this set-up. It would be the wrong bolt pattern for our trucks, but the system is worth looking into.
EDIT:
You could alternatively use a rear diff E-brake. Everyone's got one of those (4x2 and 4x4)
.
Elder User
Joined: May 2012
Posts: 842
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From: Puyallup, WA
I would probably steer away from that. Hydraulic brake systems are good for temporary application of high pressure but aren't meant to hold that pressure for long periods. You'd probably find that it would bleed down after a few days. Not what you want in a parking brake.
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From: Regina, Saskatchewan
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There are many cars out there using something similar. To cut the cost drastically, you'd have to find such a system in the j/y and adapt it to fit your vehicle. Some use the gear box to pull a cable. Other ecalipers have the gears attached with a motor. Audi comes to mind.
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Logistics Pro
Joined: May 2010
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From: Regina, Saskatchewan
There are many cars out there using something similar. To cut the cost drastically, you'd have to find such a system in the j/y and adapt it to fit your vehicle. Some use the gear box to pull a cable. Other ecalipers have the gears attached with a motor. Audi comes to mind.
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Lead Driver
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From: Near Los Angeles
The 76-79 El Dorado uses a ratcheting screw controlled by your oem cable.
They are difficult to understand and difficult to get to function properly. They are the red-headed step child of ebrake calipers. Here is a pic of the actual screw mechanism.
The only people that say they like them are the ones who did a write up about them, and you never hear from them again.
I happen to have another set of them in my garage, and since they fit the Chevy caliper brackets I have, I may take another run at them.
Here is a pic of what they look like:
They are difficult to understand and difficult to get to function properly. They are the red-headed step child of ebrake calipers. Here is a pic of the actual screw mechanism.
The only people that say they like them are the ones who did a write up about them, and you never hear from them again.
I happen to have another set of them in my garage, and since they fit the Chevy caliper brackets I have, I may take another run at them.
Here is a pic of what they look like:
Logistics Pro
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From: Regina, Saskatchewan
You got that right... the guys who like them say that they work wonders and then never post again. Leads me to believe they're not that good lol.
Try them out and let us know how it goes?
Heard a lot of good things about them, but can't seem to agree with adjusting the e-brake stuff all the time while the pads wear down. Wonder if you'll have to do the same.
Try them out and let us know how it goes?
Heard a lot of good things about them, but can't seem to agree with adjusting the e-brake stuff all the time while the pads wear down. Wonder if you'll have to do the same.
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I'm doing a ZF trans swap. It's too bad I can't find the tail section with the drum ebrake on it. That would solve the problem right there, but people who have said item want more for it than for the trans! I don't know if I want to go through the long process of rebuilding another set of the caddy calipers, and then welding up the cable anchor attachment, just to be disappointed. We'll see.
Here is an interesting link: A co. who 'remanufactures' the caddy calipers, and pinion parking brakes.
https://www.tsmmfg.net/pinionmountedpb.html
Here is an interesting link: A co. who 'remanufactures' the caddy calipers, and pinion parking brakes.
https://www.tsmmfg.net/pinionmountedpb.html
Logistics Pro
Joined: May 2010
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From: Regina, Saskatchewan
I'm doing a ZF trans swap.
Here is an interesting link: A co. who 'remanufactures' the caddy calipers, and pinion parking brakes.
https://www.tsmmfg.net/pinionmountedpb.html
Here is an interesting link: A co. who 'remanufactures' the caddy calipers, and pinion parking brakes.
https://www.tsmmfg.net/pinionmountedpb.html
Great link for the rebuilt calipers btw.
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Lead Driver
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Regarding the link: That co. (TSM) says those calipers are NEW. I don't know how they pulled that off.
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