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Old 11-28-2024, 12:02 PM
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Skip Fix Skip Fix is offline
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Default Torque on new vehicle and Baer caliper brackets

Did the brakes on my 2015 Silverado awhile back and the caliper brackets take almost 150 ftlbs!

I have a set of Baer PBR brakes I was trying to pull apart to ship easier and they have 9/16 Allen bolts AND red Loctite on them! One I can;t break loose even with a new 1/2" impact!

Think of all the D52 calipers that use a 3/8 bolt to hold the calipers and the 100s of thousands of vehicles out there. We really need a 9/16 at 150 ft lbs!

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1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever!
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  #2  
Old 11-29-2024, 10:12 AM
78w72 78w72 is offline
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Im sure you know this, but for loctite & rusted stuck bolts/nuts... use heat even from just a propane torch, Ive got almost every rusted or loctite bolt/nut free with a minute or so of a propane/map torch. Also many dont do this, but its best to heat the area the bolt goes into to or the nut being loosened, that expands the nut or boss the bolt goes in breaking free rust & allowing a little expansion for the nut or bolt to come out... loctite just needs heated to break its bond.

But yes, 150lb/ft is very tight for a brake caliper bracket/bolt. Good luck!

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Old 11-29-2024, 10:32 AM
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Breaking the heat out this weekend!

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1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever!
1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand
1965 GTO 4 barrel 3 speed project
2004 GTO Pulse Red stock motor computer tune 13.43@103.4-sold
1964 Impala SS 409/470ci 600 HP stroker project
1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs
1964 Corvette Coupe 327 4 speed
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Old 11-29-2024, 10:43 AM
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What problem were they trying to solve? Sounds crazy.

Noted, thanks.

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Old 11-29-2024, 12:54 PM
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Quote:
Originally Posted by Shiny View Post
What problem were they trying to solve? Sounds crazy.

Noted, thanks.
That was my question! What the heck!

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Skip Fix
1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever!
1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand
1965 GTO 4 barrel 3 speed project
2004 GTO Pulse Red stock motor computer tune 13.43@103.4-sold
1964 Impala SS 409/470ci 600 HP stroker project
1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs
1964 Corvette Coupe 327 4 speed
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Old 11-29-2024, 08:38 PM
JLMounce JLMounce is offline
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Yup, 160 ft lbs and red loctite on my Wilwood calipers. They absolutely want nothing to do with those things coming apart.

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  #7  
Old 11-30-2024, 07:41 PM
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Knowing that pads/rotors are a wear item it seems kind of crazy for that much bolt size and torque when you have to replace them.

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Skip Fix
1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever!
1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand
1965 GTO 4 barrel 3 speed project
2004 GTO Pulse Red stock motor computer tune 13.43@103.4-sold
1964 Impala SS 409/470ci 600 HP stroker project
1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs
1964 Corvette Coupe 327 4 speed
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Old 11-30-2024, 07:55 PM
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Quote:
Originally Posted by Skip Fix View Post
Knowing that pads/rotors are a wear item it seems kind of crazy for that much bolt size and torque when you have to replace them.
FWIW on the Wilwoods, the only time you need to take anything apart is if you're replacing a rotor. The design of the calipers allows brake pads to be swapped without removing the calipers.

If one were enterprising enough, i bet you could swap rotors with the calipers still in place as well.

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  #9  
Old 12-01-2024, 11:21 AM
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The PBR style calipers you can't change pads without pulling caliper and for sure you can;t pull the rotor to either resurface or replace.

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Skip Fix
1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever!
1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand
1965 GTO 4 barrel 3 speed project
2004 GTO Pulse Red stock motor computer tune 13.43@103.4-sold
1964 Impala SS 409/470ci 600 HP stroker project
1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs
1964 Corvette Coupe 327 4 speed
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