Brakes - The 1947 - Present Chevrolet & GMC Truck Message Board Network

gutterman01 · 10-31-2004, 05:06 PM

Has anyone used a 1988 master cylinder and booster on a 67-72 chevy truck also the steering box will it bolt up?

68w/sbc406 · 10-31-2004, 06:40 PM

i am pretty sure it is only 69-87 p/s boxes that work. for a 2wd if thats what you are talking about. just look at the difference. does it still bolt on the outside of the frame. 4 bolt holes. the rag joint the same? as far as the master and booster, i cant help there

Tx Firefighter · 10-31-2004, 09:42 PM

88 and newer steering boxes bolt inside the frame, rather than outside like 87 and older trucks do.

Longhorn Man · 10-31-2004, 10:37 PM

The 67/early 68 frame needs light mods to use a later box. There is a dimple that needs placed on the frame rail.
The gear box from 73 - about 80 will work fine. The later ones will work, but the hose connections are o-ring style, and metric.
The master cylinder, i wouldn't touch it myself if you have a 67 - 70...(drum/drum verses disc/drum) And honestly, onless I had swapped the whole 73 - 87 brake system to the older truck, I still wouldn't do it.

Longhorn Man · 11-01-2004, 12:25 AM

Here's a pic...

The little plastic deal on the booster, at the end of the (steel braided) hose.

68w/sbc406 · 11-01-2004, 12:26 AM

hey andy wrong brake thread

10-31-2004, 05:06 PM	#1
gutterman01 Registered User Join Date: Sep 2003 Location: kentucky Posts: 240	Brakes Has anyone used a 1988 master cylinder and booster on a 67-72 chevy truck also the steering box will it bolt up?

10-31-2004, 06:40 PM	#2
68w/sbc406 Got Light Emitting Diode? Join Date: Apr 2004 Location: Newberg, OR Posts: 2,485	i am pretty sure it is only 69-87 p/s boxes that work. for a 2wd if thats what you are talking about. just look at the difference. does it still bolt on the outside of the frame. 4 bolt holes. the rag joint the same? as far as the master and booster, i cant help there __________________ 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(the family car) 1993 Cherokee work ride/weekend wheeler

10-31-2004, 09:42 PM	#3
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	88 and newer steering boxes bolt inside the frame, rather than outside like 87 and older trucks do. __________________ I'm on the Instagram- @Gearhead_Kevin

11-01-2004, 12:26 AM	#6
68w/sbc406 Got Light Emitting Diode? Join Date: Apr 2004 Location: Newberg, OR Posts: 2,485	hey andy wrong brake thread __________________ 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(the family car) 1993 Cherokee work ride/weekend wheeler

10-31-2004, 10:37 PM	#4
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	The 67/early 68 frame needs light mods to use a later box. There is a dimple that needs placed on the frame rail. The gear box from 73 - about 80 will work fine. The later ones will work, but the hose connections are o-ring style, and metric. The master cylinder, i wouldn't touch it myself if you have a 67 - 70...(drum/drum verses disc/drum) And honestly, onless I had swapped the whole 73 - 87 brake system to the older truck, I still wouldn't do it.

11-01-2004, 12:25 AM	#5
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Here's a pic... The little plastic deal on the booster, at the end of the (steel braided) hose.



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