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A few years ago I installed (on my '73 L) one of the brake upgrade kits that utilizes Corvette rotors and calipers and uses a line lock for the parking brake since the factory park brake components don't fit. Initially all was fine, but the line lock has lost effectiveness over time so that I don't think it will pass the state safety check. Also, the local garages (Massachusetts) now sit in the car and apply the parking brake themselves to be sure you are not "faking it" when told to apply it. My question is: does someone sell a bracket kit to re-install the factory park brake, or is there another DOT approved device I can use in place of the line lock? Thank you!

Last edited by George P
Original Post
A Line-lock is simply a valve that holds line pressure applied to your brakes. It is a parking brake developed for fork-lifts, NOT a legal emergency brake. A legal e-brake is a redundent, completely separate system (e.g- a cable) of operating at least the rear brakes in the event of a total hydraulic failure. To my knowlege, no one actually offeres a "kit" for legal e-brakes on a Pantera with thick rotors, but Corvette or Z-28 Camaro calipers have the capability built-in for cable actuation. Dunno how difficult it might be to adapt your stock cable to the GM calipers. I think Hall's 'Super-Stopper kit' use these calipers. Years ago, I added Wilwood cable-operated calipers to my Pantera so as to have legal e-brakes with ventillated rotors. These go-kart calipers require a custom bracket, and were the subject of a couple of articles in the POCA newsletter, with photos.

PE Controller3621900F-2E4A-4EE7-81D6-71A799E4318E

There’s another option: Pantera Electronics Tesla/Brembo electronic parking brake calipers. You’d think the calipers were expensive but you can buy a pair on eBay for about $150 or less. Most of the calipers are aluminum but later versions are composite. This allows you to eliminate the OEM parking brake handle, bracket, cables, etc. and leave more room for aftermarket seats. Pantera Electronics manufactures the switch/controller and has the parts you need to install the calipers; connectors, cable, etc. 


Images (2)
  • 3621900F-2E4A-4EE7-81D6-71A799E4318E: Tesla/Brembo Caliper
  • PE Controller: Pantera Electronics Controller
Last edited by davidnunn

The Wilwood mechanical caliper (go-kart spot brake) shown is what I adapted in 1998 to our Pantera with altered rear brakes. I made a pair of adapter brackets and cable-directors; the same caliper with a different bracket is what Pantera East sold for Panteras and Vipers for quite a while. IPSCO now sells something similar. Mine works fine with stock brake cables, except there is no anti-rattle spring so with the windows down, you can hear the little pads and backing plates moving around. No worries after 20 yrs of driving. Wilwood also makes an invisible e-brake that is of the early Corvette 2-shoe design built inside the rotor hat sections.

Tesla Caliper - as everyone may or may not know, the reason that Tesla calipers are so cheap on eBay (you can find them between $66 a pair, and $150 a pair) is most likely because they came off the 2016 models when they were 53,000 vehicles recalled for parking brake issues.

The cheaper pairs of calipers have the connector housings broken, on the more expensive ones, the connector housings are intact.

How do you find out if the calipers have the plastic gear that may prevent them from being retracted?

Can they be repaired or updated so that this would not be an issue on a retrofit?

I know this Tesla thing is a pretty new modification to our cars, but I’d be pretty irritated if I spent $700 on all the components and mounted it up, and then found an issue with the calipers.

Thanks -



Rocky, all of the Tesla Model S PB calipers I've seen on eBay have been taken from wrecked Tesla's. There seems to be a lot of them! The calipers that were exchanged under warranty were supposed to have been destroyed by the servicing dealer. Imagine the liability risk a dealer would suffer if they were taking those "exchanged under recall" calipers and selling them on eBay! That being said, only 5% of them were defective, so if some found their way onto eBay, chances are they're OK. I agree with you; the challenge, buying them on eBay is, receiving undamaged units. The electrical connector is extremely vulnerable and even if it is intact before shipping, if the packaging isn't great, the calipers will be delivered with broken connectors. 

I bought a pair of the later composite PB calipers on eBay for $75 each and they look like brand new units. They came with pads too! I went this route for one simple reason; it allowed me to eliminate the e-brake handle and move my Recaro passenger seat a few inches closer to the console. 


In America, it is (supposed to be) “Everything is allowed except that which is forbidden”, vs. “Everything is forbidden except that which is allowed”.


There are very few states anymore that have safety inspections, and I’m not aware of any that force the car to be 100% stock, although they do make you do that for emissions testing....



@rocky posted:


In America, it is (supposed to be) “Everything is allowed except that which is forbidden”, vs. “Everything is forbidden except that which is allowed”.

I see.

I thought it might be some sort of safety issue to use a third party controller, your DIY wiring between controller and calipers and operate them with a $0.50 rocker switch...

After all, you live in the promised land of lawsuits...




Maybe that’s why we have so many lawsuits...

But if you are going to make that argument, than any of the other parking brake offerings would be similarly bad....

This is a PARKING brake, after all.

And if it holds, there’s no reason for a lawsuit.  But if your 50 year old stock brake fails on Lombard St. in San Francisco, you are probably in just as much trouble....



Images (1)
  • FB42C552-1925-4457-A699-79EEAEF8418D
Last edited by rocky

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