Last brake conversion question... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

HeavyD · 09-29-2004, 03:07 AM

Ok, I have the entire front end from a 75 chev ready to go into my 70 GMC, and have the lines from the 75 that go to the master cylinder; will these brake lines go onto a disc brake master cylinder from a 71-72? Or do I use a master cylinder from the 75 truck as well? (I also have a power brake booster and master cylinder/prop valve from a 71 to use if it can be adapted to the 75 lines) This is my last hurdle before bolting this thing up tomorrow

Thanks.

HeavyD · 09-30-2004, 02:34 AM

Anyone know what I need to use?

krue · 09-30-2004, 05:13 AM

I would use the 71 mc and prop valve and booster. Should bolt right to the firewall. Shouldn't be hard to adapt the brake lines.

Tx Firefighter · 09-30-2004, 09:04 AM

Quote:

Originally Posted by krue

I would use the 71 mc and prop valve and booster. Should bolt right to the firewall. Shouldn't be hard to adapt the brake lines.

That's what I did when I converted my 70. AutoZone 19 dollar 72 truck master cylinder and a parts board 20 dollar 72 proportioning valve. I used 2 adapters to adapt the brake line sizes.

09-29-2004, 03:07 AM	#1
HeavyD Senior Member Join Date: Sep 2004 Location: Wakaw, Sask, Canada Posts: 3,180	Last brake conversion question... Ok, I have the entire front end from a 75 chev ready to go into my 70 GMC, and have the lines from the 75 that go to the master cylinder; will these brake lines go onto a disc brake master cylinder from a 71-72? Or do I use a master cylinder from the 75 truck as well? (I also have a power brake booster and master cylinder/prop valve from a 71 to use if it can be adapted to the 75 lines) This is my last hurdle before bolting this thing up tomorrow Thanks.

09-30-2004, 05:13 AM	#3
krue Designated A-hole! Join Date: Mar 2003 Location: South Mississippi Posts: 36,448	I would use the 71 mc and prop valve and booster. Should bolt right to the firewall. Shouldn't be hard to adapt the brake lines. __________________ "If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck"

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09-30-2004, 02:34 AM	#2
HeavyD Senior Member Join Date: Sep 2004 Location: Wakaw, Sask, Canada Posts: 3,180	Anyone know what I need to use?



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