Black Magic Brake pads and hydroboost on 35's

fixmysix

TJ Enthusiast
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Jan 9, 2020
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I'm wondering if the Black Magic pads are enough to stop 35's with a hydroboost set-up. Obviously the BBK would be better but it's a lot more $$$. The hydroboost is the only way to go due to motor swap. Will I have decent stopping power, or will an extra pair of undies in the glove box still be required? HP 30 front, 8.8 rear.
 
call The Brake Wizard at Black Magic Brakes
 
I'm wondering if the Black Magic pads are enough to stop 35's with a hydroboost set-up. Obviously the BBK would be better but it's a lot more $$$. The hydroboost is the only way to go due to motor swap. Will I have decent stopping power, or will an extra pair of undies in the glove box still be required? HP 30 front, 8.8 rear.
Sure, they will stop you just fine. The knuckles won't like it, calipers won't be happy, but they will stop you very quickly. Eventually the cast sliders on the knuckles for the brake pads will bend and the pads will be very loose and rattle a bunch more, but stop you it will.
 
Sure, they will stop you just fine. The knuckles won't like it, calipers won't be happy, but they will stop you very quickly. Eventually the cast sliders on the knuckles for the brake pads will bend and the pads will be very loose and rattle a bunch more, but stop you it will.
Around how many miles is eventually? It's clear this isn't a permanent solution, but this is going to be a weekend wheeling rig and is a ground up build. If I can postpone $1k for brakes and still be safe I'll take it for now. Are we talking 5k miles or 20k miles. Thanks for your help.
 
What size tires do you have now and does it stop well? If so, the pads may work.
Ground up build. CJ6 body on a stretched TJ frame. I've been lurking and reading build threads and am trying to address common issues the first time around. Last time I drove the thing it had 9 inch drums on 33's so I'm sure anything will be an improvement.
 
Around how many miles is eventually? It's clear this isn't a permanent solution, but this is going to be a weekend wheeling rig and is a ground up build. If I can postpone $1k for brakes and still be safe I'll take it for now. Are we talking 5k miles or 20k miles. Thanks for your help.
0-100,000. If you take it out and have to do a panic stop, it can bend the sliders in the first stop. If you never do a panic stop or drive it hard, it may take a very long time. Good news is knuckles are cheap and easy to replace.
 
0-100,000. If you take it out and have to do a panic stop, it can bend the sliders in the first stop. If you never do a panic stop or drive it hard, it may take a very long time. Good news is knuckles are cheap and easy to replace.
Got it. I kinda figured it was a "milage may vary based on driving style". And after a panic stop bend they will still get you home/off the trail, just be loose and rattle. Thanks again.
 
Got it. I kinda figured it was a "milage may vary based on driving style". And after a panic stop bend they will still get you home/off the trail, just be loose and rattle. Thanks again.
I don't know that they will or won't get you home. They are cast and as someone who has handled more core knuckles than almost anyone on the face of this planet, I know the steering arm gets broken off a bunch in traffic accidents. That tells me that it is very possible to break off a slider.
 
I don't know that they will or won't get you home. They are cast and as someone who has handled more core knuckles than almost anyone on the face of this planet, I know the steering arm gets broken off a bunch in traffic accidents. That tells me that it is very possible to break off a slider.
Got it. One hard panic stop, check and possibly replace front knuckles. Upgrade ASAP.