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  #1  
Old 07-22-2009, 11:51 PM
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Default Rear Wheel Cylinders and Brake Shoes

I'm looking to change the rear wheel cylinders and brake shoes - for building boost and allowing me to hold it at the line. 60' time is horrible - 1.81 is my best. Ok I searched online for the 7/8" Bendix Cylinders and believe it or not I didn't find anything. I found several websites, but they want the vehicle that they are for. I also called Autozone and the guy told me he could only search by application/vehicle. I even gave him the part number listed in tech info. area. So my question is, what vehicles are the Bendix wheel cylinders for? Are they for the s10 as well? Also are there other rear wheel cylinders that will work?

Now on to the brake shoes. I think I've seen part numbers listed for these, but I can't seem to find the thread where I found them. Again I asked the person at autozone and could only search by vehicle So the question is the same as above, I know the vehicle is the s10 w/manual brakes, but what model year and engine displacement(if this matters).

Thanks,
Charles
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1986 Grand National
TE44
42# Injectors
Walbro340
Alky Injection
60' 1.79 11.88 @ 113 MPH

Last edited by MCHdrivesan86GN; 08-02-2009 at 11:39 PM. Reason: changed best 60' foot time from 1.93 to 1.81
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Old 07-23-2009, 01:54 AM
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Lightbulb Re: Rear Wheel Cylinders and Brake Shoes

The wheel cylinders are for an '84 S-10 with manual brakes. They will be the larger ones. Or should be. They should be a different P/N than those for the TR. Check to see. Don't buy no name ones, because they use fewer parts and thus use the same numbers for more apps.

The shoes...its hard to find the ones you want. Ask for a non-metallic shoe. Chances are, you won't find it. It used to be the cheap ones were non-metallic. Not so much anymore. Ask to see both the lifetime and regular types and see what you come up with. Look for metal specs or "glitter". Try to avoid those for max line holding power.
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Old 07-23-2009, 04:06 AM
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Default Re: Rear Wheel Cylinders and Brake Shoes

As far as the shoes, these would be direct replacement shoes? Is there any particular manufacturer or brand that you would recommend?
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Alky Injection
60' 1.79 11.88 @ 113 MPH
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Old 07-23-2009, 09:16 AM
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Default Re: Rear Wheel Cylinders and Brake Shoes

Cheap organic shoes work very well ... stay away from the metallics and ceramics. Those work well with a little heat, but the organics work well cold (like holding boost at the line!)
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Old 07-24-2009, 02:36 PM
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Default Re: Rear Wheel Cylinders and Brake Shoes

Ok, has anyone used the wheel cylinders from NAPA pn# 37644? Are these ok to use or do these need to be Genuine GM parts?

Also NAPA list TS514 as the brake shoes they offer, the sales person said they were organic, but the MSDS shows they have iron in them. Are these ok to use?

Autozone list Duralast PN 514 and I ask the sales person if they were non-metallic/organic and he said not metallic, but they are organic. I've seen a previous post from Keller that listed these and he said they are non-metallic, but that was 2005 and the material could have changed. Are these ok to use?


Sorry for all the questions.

Thanks,
Charles
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TE44
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Walbro340
Alky Injection
60' 1.79 11.88 @ 113 MPH
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Old 07-26-2009, 01:18 PM
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Default Re: Rear Wheel Cylinders and Brake Shoes

37644 cross references to manual brakes, 1985 S-10, so they should work fine.

The Duralast shoes should work fine.
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1987 GN original owner 650+ HP Black
2015 BMW 328xi XDrive wagon
2012 Volkswagen Tiguan (the Tig!) Night Blue Met (sold)
2006 Trailblazer SS Red Jewel Tint 395 HP AWD (sold)
2014 Silverado LTZ Crew 4WD
2012 Honda VFR 1200F Tahitian Blue (sold)
2015 BMW S1000R Racing Red
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Old 07-27-2009, 08:38 AM
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Question Re: Rear Wheel Cylinders and Brake Shoes

Why not ask to see the shoes in person. You will be able to tell what you are getting that way.
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Old 07-27-2009, 08:48 AM
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Default Re: Rear Wheel Cylinders and Brake Shoes

Again, thanks for the information.

"Why not ask to see the shoes in person."

I did and I didn't get the TS514 from NAPA because you could clearly see that they had some metal in them. Interesting because the sales person said they were non-metallic.

As far as I could tell, the Duralast were non-metallic and that is what I bought from Autozone. These were PN514 and I purchased the cylinders pn# 37644 from NAPA.

Now the fun part, swapping them out.
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1986 Grand National
TE44
42# Injectors
Walbro340
Alky Injection
60' 1.79 11.88 @ 113 MPH

Last edited by MCHdrivesan86GN; 07-27-2009 at 08:50 AM. Reason: added the word cylinders
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  #9  
Old 08-02-2009, 10:40 PM
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Default Re: Rear Wheel Cylinders and Brake Shoes

The cylinders and shoes have been replaced. Of course I managed to round off the nut on one side that connects the brake line to cylinder and I had to cut and replace a section of the line, which required some custom bending to the replacement section of the brake line. Hopefully it will hold up.

Next comes the line lock.
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1986 Grand National
TE44
42# Injectors
Walbro340
Alky Injection
60' 1.79 11.88 @ 113 MPH
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  #10  
Old 08-03-2009, 09:55 AM
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Default Re: Rear Wheel Cylinders and Brake Shoes

Did you replace a piece of the line, the whole line to that side or did you just cut the flare off, put a new nut on and re-flare (DOUBLE flare is required)?
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1987 GN original owner 650+ HP Black
2015 BMW 328xi XDrive wagon
2012 Volkswagen Tiguan (the Tig!) Night Blue Met (sold)
2006 Trailblazer SS Red Jewel Tint 395 HP AWD (sold)
2014 Silverado LTZ Crew 4WD
2012 Honda VFR 1200F Tahitian Blue (sold)
2015 BMW S1000R Racing Red
2013 Honda CBR500R Red (wife's bike)
2014 Triumph Bonneville T100
2003 Harley Davidson V Rod Anniversary Edition
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