Front hard brake lines on a 72 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

daves72C10D · 11-01-2022, 07:43 PM

So, the drivers side flare nut is 7/16 and the pass side flare nut is 3/8. How? I have new flex lines but the pass side nut is too small. Anyone got a fix?

Thank you!!!!

**Ironangel** · 11-01-2022, 10:05 PM

Quote:

Originally Posted by daves72C10D

So, the drivers side flare nut is 7/16 and the pass side flare nut is 3/8. How? I have new flex lines but the pass side nut is too small. Anyone got a fix?

Thank you!!!!

The left side L shaped line is backwards? I just replaced all the lines on my 72 and was thrown off with a red fitting on the L shaped line. I made the rubber flex line connections first at the caliper and then at the anchor point using the clip to lock it into position. The union is 3/8 and the 7/16 attaches to the line.

**Ironangel** · 11-01-2022, 10:08 PM

Now you have me wondering if the flex lines are made like that so we dont put the right side on the left? I just went out and looked, the left side is 7/16 and the right side is 3/8...I think they do that so we dont install those banjo fittings wrong and chance tearing a flex line.?

daves72C10D · 11-03-2022, 05:51 PM

Ok, so I need to find a line that fits the passenger side. Thanks.

**pjmoreland** · 11-03-2022, 06:52 PM

The O'Reilly website lists the right side hose as having a 3/8 fitting.
https://www.oreillyauto.com/detail/c...ake+hose&pos=2

The left side is listed as 7/16".
https://www.oreillyauto.com/detail/c...ake+hose&pos=3

11-01-2022, 07:43 PM	#1
daves72C10D Registered User Join Date: Mar 2004 Location: Vale, NC Posts: 283	Front hard brake lines on a 72 So, the drivers side flare nut is 7/16 and the pass side flare nut is 3/8. How? I have new flex lines but the pass side nut is too small. Anyone got a fix? Thank you!!!! __________________ 1972 Custom 10 Deluxe- original paint, interior- 72k miles http://www.cardomain.com/ride/2466316 Cheap, Fast or Good. Pick any two. 1990 Eagle Talon AWD 1991.5 W250 CTD 1992 Cushman Truckster- Haulster

11-01-2022, 10:08 PM	#3
Ironangel Senior Member Join Date: Feb 2010 Location: Falls City, Nebraska "100 Miles From Nowhere" Posts: 2,219	Re: Front hard brake lines on a 72 Now you have me wondering if the flex lines are made like that so we dont put the right side on the left? I just went out and looked, the left side is 7/16 and the right side is 3/8...I think they do that so we dont install those banjo fittings wrong and chance tearing a flex line.? __________________ Michael of the clan Hill, "Two Seventy Two's" 71 1-ton Dually 350 4-Speed 71 C/50 Grain Truck, 350 Split-Axle 4-Speed 02 3/4 ton Express 14 Indian Chief Vintage 1952 Ford 8N, "Only Ford Allowed On The Property" "Be American, Buy American" Last edited by Ironangel; 11-01-2022 at 10:15 PM.

11-03-2022, 05:51 PM	#4
daves72C10D Registered User Join Date: Mar 2004 Location: Vale, NC Posts: 283	Re: Front hard brake lines on a 72 Ok, so I need to find a line that fits the passenger side. Thanks. __________________ 1972 Custom 10 Deluxe- original paint, interior- 72k miles http://www.cardomain.com/ride/2466316 Cheap, Fast or Good. Pick any two. 1990 Eagle Talon AWD 1991.5 W250 CTD 1992 Cushman Truckster- Haulster

11-03-2022, 06:52 PM	#5
pjmoreland Senior Member Join Date: Jan 2005 Location: CA Posts: 5,381	Re: Front hard brake lines on a 72 The O'Reilly website lists the right side hose as having a 3/8 fitting. https://www.oreillyauto.com/detail/c...ake+hose&pos=2 The left side is listed as 7/16". https://www.oreillyauto.com/detail/c...ake+hose&pos=3



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