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08-14-2013, 11:44 PM
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#1 |
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Registered User
Join Date: Dec 2001
Location: Manteca, Ca USA
Posts: 305
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Problem with front brakes
So I put new dropped spindles on my C20, then bought new rotors, bearings, and brake pads. I bought the spindles from POL, the rotors are Raybestos, and the pads are Bendix CT3's.
I got the drivers side together with a little wiggling and finesse, but the passengers side just wont go. Seems like the inside pad (piston side) is too thick. It measure .605". Please take a look at the attached pics- where is my problem? Im thinking about taking a little material off of the "mounting ears" to give that inside pad enough room to fit. I really don't want to swap back to the old spindles just to see if they fit. I can slide the old brake pads in with no problem- but they're older, worn down pads. Any suggestions or ideas????    
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'71 Chevy 3/4 Ton Longbed '22 Chevy Tahoe RST '67 Firebird- 8 sec street car '24 GMC CC 4x4 Duramax Dually |
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08-15-2013, 07:33 AM
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#2 |
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Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,945
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Re: Problem with front brakes
The pictures aren't working for me but did you put the vise grips on the piston and push it all the way back in to the rubber boot?
That is the only thing I can think of unless the pad was a little bigger than spec.  
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1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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08-15-2013, 10:25 AM
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#3 | |
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Active Member
 
Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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Re: Problem with front brakes
Quote:
Re. thick pads: I have had pads that were thicker than specs. Check both sides and compare.
__________________
68 GMC 250/3 speed Saginaw p/b p/s 69 Chevy 350/350 currently in pieces still lookin for a cab 06 Trailblazer I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive... |
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08-15-2013, 10:30 AM
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#4 |
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Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,945
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Re: Problem with front brakes
These are the vise grips I perfer to use for brake work.Welder vise grips.
__________________
1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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08-15-2013, 02:32 PM
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#5 |
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Active Member
Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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Re: Problem with front brakes
Yeah, I figured that's what you meant. I mentioned the c-clamps since most people have those around the house and some people may not know to use them to retract the pistons.
__________________
68 GMC 250/3 speed Saginaw p/b p/s 69 Chevy 350/350 currently in pieces still lookin for a cab 06 Trailblazer I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive... |
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08-15-2013, 08:51 PM
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#6 |
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Registered User
Join Date: Dec 2001
Location: Manteca, Ca USA
Posts: 305
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Re: Problem with front brakes
Sorry guys- not sure why the pics didn't show up, here they are......again.
  
__________________
'71 Chevy 3/4 Ton Longbed '22 Chevy Tahoe RST '67 Firebird- 8 sec street car '24 GMC CC 4x4 Duramax Dually |
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08-16-2013, 01:04 PM
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#7 |
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Formerly- 1972SuperCheyenne
Join Date: Oct 2008
Location: Wake Forest NC
Posts: 5,782
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Re: Problem with front brakes
Rotor on one side thicker than the other?
__________________
--Josh My Build Thread:http://67-72chevytrucks.com/vboard/s...d.php?t=799218 A good crossthread is better than Loctite any day. Life is not about what you have, but who you have to share it with. |
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08-16-2013, 02:18 PM
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#8 |
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Registered User
Join Date: Dec 2001
Location: Manteca, Ca USA
Posts: 305
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Re: Problem with front brakes
Im puzzled here. I know how to install the pads into the calipers correctly, and they fit the calipers fine. The middle picture is just showing that the pads are too thick to fit between the rotor and the "mounting ears" of the spindle. I measure both rotors, all the pads, and the thickness of the "mounting ear" everything is the same. I thinking about taking a file to the inside of the mounting ear and giving it a bit more clearance for the pad to fit. Would just hate to ruin a brand new drop spindle......
__________________
'71 Chevy 3/4 Ton Longbed '22 Chevy Tahoe RST '67 Firebird- 8 sec street car '24 GMC CC 4x4 Duramax Dually |
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08-16-2013, 02:23 PM
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#9 |
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Cluster King
Join Date: Nov 2012
Location: Junction City, OR
Posts: 5,263
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Re: Problem with front brakes
Have you tried swapping the pads left to right to see if you reverse the problem? I would try that and see what happens. If the pads fit OK on the left side, the same pads should fit OK on the right. It is a simple test.
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08-16-2013, 02:23 PM
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#10 | |
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Active Member
Join Date: Jul 2007
Location: Centrally located between Houston, Austin and Waco. BCS area.
Posts: 7,947
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Re: Problem with front brakes
Quote:
__________________
68 GMC 250/3 speed Saginaw p/b p/s 69 Chevy 350/350 currently in pieces still lookin for a cab 06 Trailblazer I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive... |
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08-16-2013, 04:55 PM
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#11 |
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Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,945
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Re: Problem with front brakes
I read the orignal post again. U say u put everything new on. When you put the rotor on and tightened the nut u backed it off enough for the assembly to spin freely correct?
__________________
1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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08-16-2013, 05:00 PM
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#12 |
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Registered User
Join Date: Dec 2001
Location: Manteca, Ca USA
Posts: 305
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Re: Problem with front brakes
I swapped pads side to side- they fit real snug on the drivers- but wont fit on the pass side. I installed the rotors, torqued to 15lbs while spinning the rotor, then backed it off 1 flat to fit the cotter pin. The caliper pistons are buried flush with the caliper housing.
I guess I could swap the spindle and see if that fixes things- then I'd know the problem is with the spindle....sounds like I got some work to do! 
__________________
'71 Chevy 3/4 Ton Longbed '22 Chevy Tahoe RST '67 Firebird- 8 sec street car '24 GMC CC 4x4 Duramax Dually |
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08-17-2013, 05:13 PM
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#13 |
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Senior Member
 
Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 10,237
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Re: Problem with front brakes
sounds liek you got a bad drop spindle that has the rotor pulled to far back
__________________
David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube |
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08-18-2013, 10:38 PM
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#14 |
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Registered User
Join Date: Dec 2001
Location: Manteca, Ca USA
Posts: 305
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Re: Problem with front brakes
Well, I took my peanut grinder to the inside of the mounting ear, clearance it about a 1/16" and the pads slid in with just a couple taps from the 2 lbs dead blow hammer, about the same amount of force needed on the drivers side.
__________________
'71 Chevy 3/4 Ton Longbed '22 Chevy Tahoe RST '67 Firebird- 8 sec street car '24 GMC CC 4x4 Duramax Dually |
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08-18-2013, 11:04 PM
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#15 |
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Senior Member
Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 10,237
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Re: Problem with front brakes
You shouldnt have to tap it all it should slide in nice and loose it you had to tap it in with a hammer its going to drag the pad against the rotor
Posted via Mobile Device
__________________
David fuller Ase Certified Mechanic Click here to help support our board!! 1971 Chevy c-10 under going a 4.8l LSx swap Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305 2007 Honda Accord my daily 145kmiles 2002 Honda Accord 4 door With 330k(sisters car) 2005 toyota Avalon 228k( brothers car) 2002 Sububran 5.3 245k 2000 Tahoe 5.3l 378 General manager for Marco's Carwash & lube |
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