The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 09-04-2009, 06:10 AM   #1
Daves72'GMC
Registered User
 
Join Date: Mar 2003
Location: Asheville, N.C
Posts: 952
Question 1972 3/4 front brake caliper/ pad?

Help! trying to figure this one out.I was driving my truck yesterday and heard a clicking noise coming from the left front wheel ,so when I got home I removed the left front wheel and the outter pad (closest to the wheel)has two tabs that fit over the caliper when installed and when I rotate the hub /disk assembly the pad moves up and down slightly causing the noise.I had replaced the calipers when I restored my truck.Do you think something is wrong with the caliper or is the pad not fitting right? Thank you Dave
Daves72'GMC is offline   Reply With Quote
Old 09-04-2009, 10:42 AM   #2
425HP409
425hp409
 
425HP409's Avatar
 
Join Date: Oct 2008
Location: Prosper Texas
Posts: 840
Smile Re: 1972 3/4 front brake caliper/ pad?

To properly fit the outer pad on this type of GM disc brake you must follow these steps. You can try to clinch the pad tight without taking the caliper off of the rotor, but it will not make the pad tight as it is intended to be.
1. Remove the caliper and outer pad
2. I always then place the caliper upside down on the spindle, with the outside of the caliper to the outside.
3. Holding the pad in your hand, with a pair of pliers(I find Channellocks work best), bend the tabs of the pad down so that the pad will barely not go into the caliper.
4. With your Channellocks on the pad surface and the outside of the caliper, start the bottom of the pad onto the caliper first, then press the ears of the pad to the seat on the caliper. You may have to do one end at a time, rotating back and forth.
This method is the only way to ensure that the pad is tight on the caliper as it was from the factory. This also eliminates rattles and squeaking from the pad.
Also make sure that the inner pad has the "Anti Rattle" clip in place on it and none of the ears are broken.
__________________
Charles
68 SWB, Dad bought new, now 396 & factory ac
64 Impala SS, 409 425HP, 4 speed AC
64 Bel Air Wagon, 400 Small Block
57 Bel Air all original 283 w/Factory Air
77 GMC Sprint, 454/425HP
67 Olds 442, all original
90 ZR1 Corvette
425HP409 is offline   Reply With Quote
Old 09-04-2009, 12:32 PM   #3
OhioDan
Registered User
 
OhioDan's Avatar
 
Join Date: Apr 2002
Location: New Carlisle, Ohio,USA
Posts: 1,404
Thumbs up Re: 1972 3/4 front brake caliper/ pad?

Clean metal side of the pad. Apply a thin coat of blue, or black silicone to the metal. They used to put a small tube of the blue silicone in with the new pads when they boxed them. Re-assemble brakes. Squeal and chatter should be gone? Hope this helps?
__________________

LIFE AIN'T EASY WHEN YER FAT AND GREASY!
GMC= Got More Class!
1970 GMC LWB, Fleetside, 350/4spd, Flowmaster "40's", 2002 GMC 16" Rallies, cowl hood,and added a bunch of options that weren't there when I started.
OhioDan is offline   Reply With Quote
Old 09-04-2009, 12:34 PM   #4
mclairmo
Registered User
 
Join Date: Jan 2006
Location: Take Off
Posts: 1,908
Re: 1972 3/4 front brake caliper/ pad?

I always use that red disc brake pad adhesive in the little round plastic bottle with a red cap on it that you can buy at any parts store. Glues the pads on so you have no movement and no squeeks.
mclairmo is offline   Reply With Quote
Old 09-05-2009, 12:27 PM   #5
capev86
Registered User
 
Join Date: May 2009
Location: Eliot, Maine
Posts: 1,314
Re: 1972 3/4 front brake caliper/ pad?

wondering if they make ceramic pads for these trucks. will have to replace the pads on my 72 burb 3/4 ton eventually. i want long life, less rotor wear, and less heat for more dependable braking when towing! nice thing about the 3/4 ton trucks is they have bigger brakes than 1/2 tons....i love my burb's brakes!
capev86 is offline   Reply With Quote
Old 09-05-2009, 06:40 PM   #6
airdale94
Registered User
 
airdale94's Avatar
 
Join Date: Jan 2007
Location: Topeka,KS
Posts: 778
Re: 1972 3/4 front brake caliper/ pad?

You can also have somebody hold the brake pedal down, then take a hammer and a big punch and hammer the tabs down.
airdale94 is offline   Reply With Quote
Old 09-20-2009, 12:39 AM   #7
Daves72'GMC
Registered User
 
Join Date: Mar 2003
Location: Asheville, N.C
Posts: 952
Question Re: 1972 3/4 front brake caliper/ pad?

I pressed the tabs down which took the play out of the pad back and forth. How do I get the play out where the pad moves up and down left to right where it follows the path of the rotor? Thank you everyone.
Daves72'GMC is offline   Reply With Quote
Old 09-20-2009, 09:56 AM   #8
Longhorn Man
its all about the +6 inches
 
Longhorn Man's Avatar
 
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
Re: 1972 3/4 front brake caliper/ pad?

Quote:
Originally Posted by capev86 View Post
wondering if they make ceramic pads for these trucks. will have to replace the pads on my 72 burb 3/4 ton eventually. i want long life, less rotor wear, and less heat for more dependable braking when towing! nice thing about the 3/4 ton trucks is they have bigger brakes than 1/2 tons....i love my burb's brakes!
yes they do.
The p/n is the exact same as a 1/2 ton pad.
Longhorn Man is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 06:42 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com