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#1 |
Got Light Emitting Diode?
Join Date: Apr 2004
Location: Newberg, OR
Posts: 2,485
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need pictures
i need some pictures of a disc brake prop valve location. is it up by the master like drum ones or down on the frame crossmember like 73+?
Thanks Ben
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1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's ![]() 1993 Cherokee work ride/weekend wheeler |
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#2 |
Watch out for your cornhole !
![]() Join Date: Jun 2003
Location: Azle, Texas
Posts: 14,162
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On pre 73 trucks, it's just below the master cylinder up on the firewall.
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I'm on the Instagram- @Gearhead_Kevin |
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#3 |
huh ???
Join Date: Nov 2002
Location: Fredericksburg,Va.
Posts: 3,369
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This is where the one is on my 72...
Chuck
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90 Blazer Silverado 350w/ 700R4 and 32" Kelly's "I am a bomb technician. If you see me running try to keep up!" |
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#4 |
Got Light Emitting Diode?
Join Date: Apr 2004
Location: Newberg, OR
Posts: 2,485
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do you have a side view???
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1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's ![]() 1993 Cherokee work ride/weekend wheeler |
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#5 |
huh ???
Join Date: Nov 2002
Location: Fredericksburg,Va.
Posts: 3,369
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No but I can take one tomorrow...
Chuck
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90 Blazer Silverado 350w/ 700R4 and 32" Kelly's "I am a bomb technician. If you see me running try to keep up!" |
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#6 |
Registered User
Join Date: Jun 2002
Location: central pa
Posts: 1,525
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Here is a side view of my '72.
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72 longhorn c30 502BB/th400/fact air/4.11rear/ custom camper 72 bug(the better half's) under reconstruction 2009 HHR aqua blue 71 GMC k20 350/sm465 2009 Chevy hd3500 6.6 Victory Red crew cab dually Dave & Jeanne |
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#7 |
Post Whore
![]() Join Date: Feb 2000
Location: Rose Hill, KS, USA
Posts: 12,684
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Here's the valve off a 78 3/4 ton 4x4 that I am using on my 70 K5.
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1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14 |
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#8 |
Got Light Emitting Diode?
Join Date: Apr 2004
Location: Newberg, OR
Posts: 2,485
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thanks for the pictures guys. a few questions. what is the spliter thingy in the first picture on the front line of the master cylinder? the second picture looks like the one i am going to be putting on, but why does it have holes in it to bolt to the frame? shouldnt it look like the third picture? compared to the other 2 pictures the second one looks backwards with the lines going from front to back. sorry if these are stupid questions. which lines are what on a prop valve. thanks guys
Ben
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1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's ![]() 1993 Cherokee work ride/weekend wheeler |
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#9 |
Registered User
Join Date: Jun 2002
Location: central pa
Posts: 1,525
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My 72 originally had the rear reservoir larger than the front for the disk brakes so the rear reservoir brake line is routed to the front of the prop valve. Then to the front brakes. the front reservoir is smaller and goes to the rear of the prop valve to the rear brakes.
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72 longhorn c30 502BB/th400/fact air/4.11rear/ custom camper 72 bug(the better half's) under reconstruction 2009 HHR aqua blue 71 GMC k20 350/sm465 2009 Chevy hd3500 6.6 Victory Red crew cab dually Dave & Jeanne |
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#10 |
Got Light Emitting Diode?
Join Date: Apr 2004
Location: Newberg, OR
Posts: 2,485
|
so...
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1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's ![]() 1993 Cherokee work ride/weekend wheeler |
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#11 |
Registered User
Join Date: Jun 2002
Location: central pa
Posts: 1,525
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On mine yes, But where did your Master cylinder come from if both reservoirs are the same size it wouldn't matter which one they came off. but the lines you have drawn are the routing on mine. back prop valve to rear brakes, front bottom to front brakes. The assembly manual shows a different setup than mine but it really doesn't show the 72 well in the back of the book but shows the 67-70 pretty good .
The disk brakes use more fluid when they wear so thats why the disk master cyl. is larger.
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72 longhorn c30 502BB/th400/fact air/4.11rear/ custom camper 72 bug(the better half's) under reconstruction 2009 HHR aqua blue 71 GMC k20 350/sm465 2009 Chevy hd3500 6.6 Victory Red crew cab dually Dave & Jeanne Last edited by dwaite72lnghrn; 10-22-2004 at 10:54 PM. Reason: additions |
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#12 | |
huh ???
Join Date: Nov 2002
Location: Fredericksburg,Va.
Posts: 3,369
|
Quote:
Chuck
__________________
90 Blazer Silverado 350w/ 700R4 and 32" Kelly's "I am a bomb technician. If you see me running try to keep up!" |
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#13 |
Got Light Emitting Diode?
Join Date: Apr 2004
Location: Newberg, OR
Posts: 2,485
|
ohh. got it. had me confused just a bit
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1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's ![]() 1993 Cherokee work ride/weekend wheeler |
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