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Old 03-26-2022, 09:25 PM   #1
memo43
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Rear brake bleeder screw

So I recently decided to do some R&R on my rear brakes.
(New center rubber hose, new wheel cylinder, brake shoes and hardware.)
Mostly due to me never servicing them since I've had the truck.
Its an 1985 Chevy k20 3/4 with 13 inch drum 2.5" brake shoes.

Now for the life of me I cannot find the part number for the "Speed Bleeder" for the rear, I have them for the front.
I want to eventually replace the front rubber hoses along with the brake calipers along with the MC.

There is nothing really wrong with the brake system, but I figured if i have to replace one part and it affects the rest, why not do it all and put it under the "MAW" category
Might As Well.

I'm hoping some one has switched to the speed bleeders for the rear and has the part # handy.

Thanks in advance

Memo
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Old 03-26-2022, 11:16 PM   #2
Getter-Done
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Re: Rear brake bleeder screw

Is this what you are looking for?
I found the part # on Russell's site.


Link:http://russellperformance.com/mc/spe...ruck-suv.shtml

79-87.- C-10/20 Pickup Front disc /639580 - Rear drum/639520

Hope this helps.
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Old 03-27-2022, 07:21 AM   #3
cadillac_al
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Re: Rear brake bleeder screw

Speed Bleeders are one time use for me. I can never get them to work a year later.
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Old 03-27-2022, 09:47 AM   #4
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Re: Rear brake bleeder screw

Try this tip if there stock or the speed bleeder are sizing. A small dab of Grease or Vaseline on one of your fingers, spared it on to top & nut thread part of the bleeder make sure there is 2mm-4mm thick. Reply about every 6months if to dry or has washed off. Just clean with a clean paper towel before doing adjustment's or work on it.
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Old 03-27-2022, 03:34 PM   #5
hatzie
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Re: Rear brake bleeder screw

Quote:
Originally Posted by cadillac_al View Post
Speed Bleeders are one time use for me. I can never get them to work a year later.
Bleeder caps are a worthwhile investment. They keep the water, brine, salt, dirt, and other road crud out of the bleeders.
I'm not sure that GM put them on stuff in the 70's & 80's my vehicles never had them when I got them.
I picked up bleeder caps off the German vehicles, mostly VW, in the salvage yards and put them on my American iron back then. The bugs, hippie vans, fastbacks, Rabbits, etc all usually had them.

The ATE caps that look like this seem to put up with the environment better than some others.

Name:  Brake bleeder caps.jpg
Views: 198
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1967 Dodge W200 B383, NP420/NP201 SOLD
1969 Dodge Polara 500 B383, A833 SOLD
1972 Ford F250 FE390, NP435/NP205 SOLD
1976 Chevy K20, 6.5L, NV4500/NP208 SOLD
1986 M1008 CUCV SOLD
2000 GMC C2500, TD6.5L, NV4500
2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263
2009 Impala SS LS4 V8


RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...Please include at least the year and model in your threads. It'll be easier to answer your questions.
And please let us know if and how your repairs were successful.
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Old 03-28-2022, 12:28 AM   #6
memo43
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Re: Rear brake bleeder screw

Thanks to everyone for the replies
I think I found the set inwas looking for
now to replace the MC, both front calipers and brake line hoses
hopefully my helper doesn't give up on the painful "pump 3 times and hold" repeat 10309504 times.
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Old 03-29-2022, 07:34 PM   #7
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Re: Rear brake bleeder screw

Pressure pot
https://www.summitracing.com/parts/m...+5ba288cdce529

Master Cylinder adapter
https://www.summitracing.com/parts/m...+5ba288eeaff1b
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1959 M35A2 LDT465-1D SOLD
1967 Dodge W200 B383, NP420/NP201 SOLD
1969 Dodge Polara 500 B383, A833 SOLD
1972 Ford F250 FE390, NP435/NP205 SOLD
1976 Chevy K20, 6.5L, NV4500/NP208 SOLD
1986 M1008 CUCV SOLD
2000 GMC C2500, TD6.5L, NV4500
2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263
2009 Impala SS LS4 V8


RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...Please include at least the year and model in your threads. It'll be easier to answer your questions.
And please let us know if and how your repairs were successful.
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