whats the difference in bendix and delco brake boosters? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

dinnut · 12-31-2003, 02:55 AM

im wondering because soon i hope to convert to discs and autozone and oreilly ask me if i have bendix or delco-moraine type brake systems when i ask for a booster and master cylinder.

what is the difference?
which should i buy for my 70 when i put front discs?

Hooter · 12-31-2003, 03:37 AM

depends if you like a square master cylinder or a round one

Southpa · 12-31-2003, 04:07 AM

I prefer Bendix over Delco. The master cyl. is much beefier and has two crosswise holddown clips for the cap. The pic shows my two earlier systems, both single clip Delco M/c's, which leaked constantly. Drum/drum m/c (equal size fluid reservoirs) and disc/drum m/c (fwd res. larger) I also opted for the deeper 3/4 ton booster for my 1/2 ton truck. Works great. I don't know if Delco and Bendix boosters are that much different from each other tho. Hope this helps a bit.

dmec · 01-01-2004, 06:07 PM

the difference is in the depth of the hole in the apply piston on the master cylinder. dont remember which style uses deep hole but you must use booster with longer rod that fits into the rear of master cylinder. vice versa for other set up. shallow hole on master, short rod on booster.

dinnut · 01-01-2004, 06:09 PM

oh. so i have to buy a matching booster/master setup? thanks

Sweet72 · 01-01-2004, 10:51 PM

This really is only a little restoration trivia, but the Delco Morraine booster had a cadmium plated finish and the Bendix was painted black.
-Sam

dinnut · 01-01-2004, 10:59 PM

thats a nice thing to know sweet72... im not really going for the "restored" look as much as im looking for the restified look.

that may add to the decision imake

Sweet72 · 01-01-2004, 11:15 PM

The research involved in putting one of these "relatively new" 67-72 trucks back to orig is something that keeps me interested in this truck project/obsession. Even though I plan to deviate and add some not-so-stock go fast goodies etc., I still want to know what it looked like off the assembly line.

12-31-2003, 02:55 AM	#1
dinnut Registered User Join Date: Apr 2003 Location: missouri city, tx Posts: 4,486	whats the difference in bendix and delco brake boosters? im wondering because soon i hope to convert to discs and autozone and oreilly ask me if i have bendix or delco-moraine type brake systems when i ask for a booster and master cylinder. what is the difference? which should i buy for my 70 when i put front discs? __________________ 70 longbed 496/th400/Ford 9"

12-31-2003, 03:37 AM	#2
Hooter My other Love Join Date: Aug 2001 Location: Castlegar B.C. Canada Posts: 4,085	depends if you like a square master cylinder or a round one __________________ Castlegar B.C.The great white North (Canada Eh!) Hooter_5@hotmail.com First generation Monte Carlo club pictures of my life

12-31-2003, 04:07 AM	#3
Southpa Registered User Join Date: May 2000 Location: Victoria, BC, Canada Posts: 2,409	I prefer Bendix over Delco. The master cyl. is much beefier and has two crosswise holddown clips for the cap. The pic shows my two earlier systems, both single clip Delco M/c's, which leaked constantly. Drum/drum m/c (equal size fluid reservoirs) and disc/drum m/c (fwd res. larger) I also opted for the deeper 3/4 ton booster for my 1/2 ton truck. Works great. I don't know if Delco and Bendix boosters are that much different from each other tho. Hope this helps a bit. Attached Images __________________ 1970 GMC 1500 Custom Original 350/TH350 Victoria, BC, Canada You can wish in one hand and crap in the other. See which one gets filled first. Last edited by Southpa; 12-31-2003 at 04:25 AM.

01-01-2004, 06:09 PM	#5
dinnut Registered User Join Date: Apr 2003 Location: missouri city, tx Posts: 4,486	oh. so i have to buy a matching booster/master setup? thanks __________________ 70 longbed 496/th400/Ford 9"

01-01-2004, 10:51 PM	#6
Sweet72 Registered User Join Date: Nov 2003 Location: Alexandria, VA Posts: 1,534	This really is only a little restoration trivia, but the Delco Morraine booster had a cadmium plated finish and the Bendix was painted black. -Sam __________________ '72 GMC SWB C1500 Custom, frame-off in progress. 383 SBC, 9:1CR, Comp Cams XE262H, Scat internal balanced crank, Eagle SIR 6" rods, Keith Black dish pistons, Dart Iron Eagle 72/180 heads, Weiand Stealth intake, Stewart stage I water pump, Holley 4bbl vac sec, TH350 with B&M Shift Improver Kit. 12 bolt positraction.

01-01-2004, 06:07 PM	#4
dmec Senior Member Join Date: Jun 2000 Location: yucaipa ca Posts: 580	the difference is in the depth of the hole in the apply piston on the master cylinder. dont remember which style uses deep hole but you must use booster with longer rod that fits into the rear of master cylinder. vice versa for other set up. shallow hole on master, short rod on booster.

01-01-2004, 10:59 PM	#7
dinnut Registered User Join Date: Apr 2003 Location: missouri city, tx Posts: 4,486	thats a nice thing to know sweet72... im not really going for the "restored" look as much as im looking for the restified look. that may add to the decision imake __________________ 70 longbed 496/th400/Ford 9"

01-01-2004, 11:15 PM	#8
Sweet72 Registered User Join Date: Nov 2003 Location: Alexandria, VA Posts: 1,534	The research involved in putting one of these "relatively new" 67-72 trucks back to orig is something that keeps me interested in this truck project/obsession. Even though I plan to deviate and add some not-so-stock go fast goodies etc., I still want to know what it looked like off the assembly line. __________________ '72 GMC SWB C1500 Custom, frame-off in progress. 383 SBC, 9:1CR, Comp Cams XE262H, Scat internal balanced crank, Eagle SIR 6" rods, Keith Black dish pistons, Dart Iron Eagle 72/180 heads, Weiand Stealth intake, Stewart stage I water pump, Holley 4bbl vac sec, TH350 with B&M Shift Improver Kit. 12 bolt positraction.



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.