help with 71 front hoses. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

daily_danger · 01-30-2015, 02:59 PM

Good afternoon,

I hope to get around to an intro thread when I get some free time. All my spare time has been spent either working on the truck or searching for info.

PO installed Bell (i believe) 2" drop spindles. I need to replace the front brake hoses. They're old, and in one spot the cotter pin was stabbing the hose. I've done my fair share of searching, I've seen a few different answers. Are these 71, 71-72, or 73+ front calipers. If I replace the calipers at a later time, will I only be able to get 73+ calipers? I'm strapped for time and playing games trying to match up hoses will bite big time. Any specific part numbers for hoses would be MUCH appreciated.

Thank you for any help!

Details on current setup:

1971 C10 LWB

2" drop spindles

Large square banjo

Part number on R caliper: n gm 23 547 1173 (i've been unable to successfully google that #).

Pics(hopefully):

midniteblues · 01-31-2015, 10:50 AM

those look like stock oe 71 hose's too me. i think 72 on up had round banjo fittings ....but i could be wrong

daily_danger · 01-31-2015, 08:06 PM

I really appreciate the help, thank you.

I went to my friends parts store. His system shows a front hose split at 4/71 (iirc) I don't know the production month of my 71. He had the hoses in stock for after 4/71, so I was able to get a feel for them. They have round ends and seemed too short, but did have different fittings for the chassis side of it. I printed the specs for those and measured mine. I measured roughly hose crimp to hose crimp.

left: 11 3/8
right: 11

Doorman:
left: 12 1/4
right: 11 1/2

I'm beginning to think despite having the wrong banjo, those may work. doorman lists them as 71-72 gm C10/15 only. I figure they're measuring from banjo center to very end, accounting for the increased length.

link

link

Monday when I pick up my carrier bearing I'll probably man up and give those a go.

Cheers.
Nic

daily_danger · 02-08-2015, 11:35 PM

For anyone who may Google their way to this thread:

The hoses linked above worked fine. They are a little tight as reported in other threads. Due to the drop spindles the hose is very close to the upper ball joint, I needed to take care when installing the cotter pin. I'm going to find some hose wrap for further protection against abrasion from the BJ. The old cotter pin was stabbing the hose, which was part of the reason I changed them.

Cheers
Nic.

01-30-2015, 02:59 PM	#1
daily_danger Registered User Join Date: Jan 2015 Location: North Carolina Posts: 17	help with 71 front hoses. Good afternoon, I hope to get around to an intro thread when I get some free time. All my spare time has been spent either working on the truck or searching for info. PO installed Bell (i believe) 2" drop spindles. I need to replace the front brake hoses. They're old, and in one spot the cotter pin was stabbing the hose. I've done my fair share of searching, I've seen a few different answers. Are these 71, 71-72, or 73+ front calipers. If I replace the calipers at a later time, will I only be able to get 73+ calipers? I'm strapped for time and playing games trying to match up hoses will bite big time. Any specific part numbers for hoses would be MUCH appreciated. Thank you for any help! Details on current setup: 1971 C10 LWB 2" drop spindles Large square banjo Part number on R caliper: n gm 23 547 1173 (i've been unable to successfully google that #). Pics(hopefully): Attached Images

01-31-2015, 10:50 AM	#2
midniteblues Registered User Join Date: Jul 2011 Location: strausstown pa Posts: 3,394	Re: help with 71 front hoses. those look like stock oe 71 hose's too me. i think 72 on up had round banjo fittings ....but i could be wrong __________________ 81 camaro 355 4/spd 342 posi my first love. 67 swb step 454/4spd ott 373 posi 4/7 drop. 2000 s10 zr2 little blue truck that never gets stuck. '74 heald super bronc vt8. tecumseh powered moon rover.

01-31-2015, 08:06 PM	#3
daily_danger Registered User Join Date: Jan 2015 Location: North Carolina Posts: 17	Re: help with 71 front hoses. I really appreciate the help, thank you. I went to my friends parts store. His system shows a front hose split at 4/71 (iirc) I don't know the production month of my 71. He had the hoses in stock for after 4/71, so I was able to get a feel for them. They have round ends and seemed too short, but did have different fittings for the chassis side of it. I printed the specs for those and measured mine. I measured roughly hose crimp to hose crimp. left: 11 3/8 right: 11 Doorman: left: 12 1/4 right: 11 1/2 I'm beginning to think despite having the wrong banjo, those may work. doorman lists them as 71-72 gm C10/15 only. I figure they're measuring from banjo center to very end, accounting for the increased length. link link Monday when I pick up my carrier bearing I'll probably man up and give those a go. Cheers. Nic

02-08-2015, 11:35 PM	#4
daily_danger Registered User Join Date: Jan 2015 Location: North Carolina Posts: 17	Re: help with 71 front hoses. For anyone who may Google their way to this thread: The hoses linked above worked fine. They are a little tight as reported in other threads. Due to the drop spindles the hose is very close to the upper ball joint, I needed to take care when installing the cotter pin. I'm going to find some hose wrap for further protection against abrasion from the BJ. The old cotter pin was stabbing the hose, which was part of the reason I changed them. Cheers Nic.



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