Did 69-70 have brake boosters from factory... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

SWEET7T · 10-08-2003, 06:26 PM

I came across 3 69-70 pickups today. Found out who the owner is, and he said that he was willing to sell some of the parts off of them. One of them has a brake booster installed! Was this a factory option on quad-drum trucks? It didn't have the master cylinder. It looks a little rough from being in the weather. How would I tell if it is any good?

Also, he has one with a very nice looking grill with the embossed 'CHEVROLET' in the center. What would be a good price for this. I know I can order one for $400+. It looks good, just needs to be polished, but no dents!

crazy longhorn · 10-08-2003, 06:40 PM

Yes, the drum brakes had the power option. If the booster looks like its been open to the weather......I would cough 2 times & pass on it! crazyL

billsbowtie · 10-08-2003, 06:50 PM

i had a 69 with power drum brakes . around here a nice used grille goes for about $200.00 easy if its in real good shape i just sold one for $200.00

1969 GMC · 10-08-2003, 08:40 PM

my 69 has power brakes. Drums @ all 4 corners. they aren't listed on the options sheet, but it looks like a factory setup to me. even if someone did swap it in, I'm glad they did because it saves me a little time and money not having to do it myself. were power brakes usually listed on the options sticker?

Longhorn Man · 10-08-2003, 10:29 PM

Power brakes was an option from day one on this generation of truck.
Yes, it should be listed...1J7010 Hydraulic Brake Booster

SWEET7T · 10-09-2003, 12:36 AM

Sweeeeetttt

I didn't know power brakes were an option before 71. I think I just might have to go and get that bracket and order me up a brake booster (I don't feel all that safe about the one that is on that truck).

SWEET7T · 10-09-2003, 10:55 AM

Did both power & non-power brakes use the same master cylinder?! Is it something small as to how long the plunger on the brake booster is, or is it a large difference as to (who knows)???
Thanks for the help!!!

**COBALT** · 10-09-2003, 01:24 PM

I have two '69 3/4 ton trucks: one with power brakes and one without. Both look like they use the same proportioning valve and master cylinder if my memory serves me well (been a while since I looked at the non-power setup).

palallin · 10-09-2003, 01:46 PM

The only difference between the two systems is in the push rod that goes through the firewall.

boraxman · 10-09-2003, 03:37 PM

Im selling a master/booster that works for and is off a '70 1/2 ton w/rod. $75 shipped.

woodyjeff · 10-10-2003, 12:12 AM

The master cylinder and prop valve are the same for with or without power brakes. I just added power brakes a couple of months ago and it was real easy. Just make sure you get all the pieces like the rod that attaches to the peddle arm inside the truck and there is a plunger with rubber seal on it that should be sticking out the front of the booster that you will need, it is what pushes into the master cylinder. I used my old master cylinder and prop valve and it works great. The only problem is there is a wire extension that goes with the power breaks to go to the prop valve for the brake light and I can't seem to find one of these. You could hook up any wire to extend it but I'm looking for a plug that looks origanal.

10-08-2003, 06:26 PM	#1
SWEET7T Try spinnin 4 rear tars Join Date: Sep 2003 Location: Salt Lake City, Utah Posts: 757	Did 69-70 have brake boosters from factory... I came across 3 69-70 pickups today. Found out who the owner is, and he said that he was willing to sell some of the parts off of them. One of them has a brake booster installed! Was this a factory option on quad-drum trucks? It didn't have the master cylinder. It looks a little rough from being in the weather. How would I tell if it is any good? Also, he has one with a very nice looking grill with the embossed 'CHEVROLET' in the center. What would be a good price for this. I know I can order one for $400+. It looks good, just needs to be polished, but no dents! __________________ SWEET7T 1970 C10, 2wd, LB, 307/TH350/3.08. PS, PB

10-08-2003, 06:40 PM	#2
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,402	Yes, the drum brakes had the power option. If the booster looks like its been open to the weather......I would cough 2 times & pass on it! crazyL __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....

10-08-2003, 06:50 PM	#3
billsbowtie Senior Member Join Date: Feb 2003 Location: rose hill V.A. 24281 Posts: 17,997	i had a 69 with power drum brakes . around here a nice used grille goes for about $200.00 easy if its in real good shape i just sold one for $200.00 __________________ i have 67/72 chevy truck parts f/s.

10-08-2003, 08:40 PM	#4
1969 GMC Registered User Join Date: Feb 2003 Location: The Rubber City Posts: 5,498	my 69 has power brakes. Drums @ all 4 corners. they aren't listed on the options sheet, but it looks like a factory setup to me. even if someone did swap it in, I'm glad they did because it saves me a little time and money not having to do it myself. were power brakes usually listed on the options sticker? __________________ 1969 GMC K2500 1996 Honda Accord 2007 Kawasaki KLR 650

10-09-2003, 12:36 AM	#6
SWEET7T Try spinnin 4 rear tars Join Date: Sep 2003 Location: Salt Lake City, Utah Posts: 757	Sweeeeetttt I didn't know power brakes were an option before 71. I think I just might have to go and get that bracket and order me up a brake booster (I don't feel all that safe about the one that is on that truck). __________________ SWEET7T 1970 C10, 2wd, LB, 307/TH350/3.08. PS, PB

10-08-2003, 10:29 PM	#5
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Power brakes was an option from day one on this generation of truck. Yes, it should be listed...1J7010 Hydraulic Brake Booster

10-09-2003, 10:55 AM	#7
SWEET7T Try spinnin 4 rear tars Join Date: Sep 2003 Location: Salt Lake City, Utah Posts: 757	Did both power & non-power brakes use the same master cylinder?! Is it something small as to how long the plunger on the brake booster is, or is it a large difference as to (who knows)??? Thanks for the help!!! __________________ SWEET7T 1970 C10, 2wd, LB, 307/TH350/3.08. PS, PB

10-09-2003, 01:24 PM	#8
COBALT Senior Member Join Date: Sep 2001 Location: Seattle, WA, USA Posts: 5,817	I have two '69 3/4 ton trucks: one with power brakes and one without. Both look like they use the same proportioning valve and master cylinder if my memory serves me well (been a while since I looked at the non-power setup). __________________ '69 3/4 ton C20 2wd-350ci/TH400 '69 3/4 ton Custom 20 2wd-350ci/4sp Manual '99 2wd 5.7 Chevy Tahoe Seattle, WA.

10-09-2003, 01:46 PM	#9
palallin Registered User Join Date: Jul 2002 Location: St. James, MO Posts: 1,238	The only difference between the two systems is in the push rod that goes through the firewall. __________________ '69 Longstep K-10: 327/SM465/T-221/Closed Knuckle Dana44/12-bolt.

10-09-2003, 03:37 PM	#10
boraxman Keepin an eye out Join Date: Feb 2003 Location: So.Cal Posts: 3,921	Im selling a master/booster that works for and is off a '70 1/2 ton w/rod. $75 shipped. __________________ 1970 Chevy C10 SWB 5.3 1996 Toyota Tacoma SR5 4x4 2007 Vespa GTS 250 Scooter ZIP 91351 Last edited by boraxman; 10-09-2003 at 03:41 PM.

10-10-2003, 12:12 AM	#11
woodyjeff Registered User Join Date: Mar 2003 Location: Lincoln, NE Posts: 32	The master cylinder and prop valve are the same for with or without power brakes. I just added power brakes a couple of months ago and it was real easy. Just make sure you get all the pieces like the rod that attaches to the peddle arm inside the truck and there is a plunger with rubber seal on it that should be sticking out the front of the booster that you will need, it is what pushes into the master cylinder. I used my old master cylinder and prop valve and it works great. The only problem is there is a wire extension that goes with the power breaks to go to the prop valve for the brake light and I can't seem to find one of these. You could hook up any wire to extend it but I'm looking for a plug that looks origanal. __________________ 70 Custom-10 LWB



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