Can someone tell me how the rear brake lines on my 72 K10 should be routed? (Pics) - The 1947 - Present Chevrolet & GMC Truck Message Board Network

fishmunger · 01-29-2020, 09:11 PM

Recently purchased this truck...trying to go through it, order parts, and make her safe to drive!

It has been lifted 4", and previously had a body lift (which has been removed). It looks like the PO didn't bother to extend brake lines (front or rear - got the front figured out - I think).

Is the bracket where the top of the rear flex line connects look 'normal' to you? Or is it 'bent up'?

It looks like they just removed the hold down bracket from the rear diff and bent the lines up to make it work. I plan on ordering new hard lines and a new extended rear brake line so I can get it back on the diff. The stock flex line is around 13-14", not sure how much longer I need to go? Looking at parts online, it appears an 18" line is what is called for with a 4" lift. Not sure if that will be too short though if indeed the upper bracket has been bent up and away?

Also, should there be 2 tabs holding the brake line to the diff (1 on each side)?

I've been looking at the extended lines offered by Inlinetube, ORD, and others. I don't suppose anyone knows of an oem style rubber line that is extended? I found the thread in which Special-K gave the part #s for extended front lines using C20 parts (awesome - going to buy them) but it looks like for the rear aftermarket is the only option?

**tim71** · 01-29-2020, 10:46 PM

71 K1500, I should have taken 3 or 4 times as many photos as I did when I took my truck apart...

fishmunger · 01-29-2020, 11:10 PM

Huh, that's quite a bit different. I wonder if it changed from 71 to 72? Very helpful though, thank you!

fishmunger · 01-31-2020, 01:49 AM

Anyone else got pics of their rear brake lines?

*randy500* · 01-31-2020, 02:10 AM

71 is different than 72.
Your frame bracket is bent, i cant tell which way though in your pictures

The lines attach at 2 places on the rear axle cover.
The thin one attaches same bolt as the 71 posted.
The heavy bracket attaches to a stud bolt, one bolt down from top bolt and to right side of cover.

fishmunger · 01-31-2020, 04:40 PM

Thanks Randy. I think it is likely bent 'up'.

Any idea where I can find the little left side bracket/clamp? Haven't had any luck with the parts sites or inline tube, etc. I suppose I could make something...

**PDXk5** · 01-31-2020, 11:28 PM

Here are pics from my ‘72 Blazer’s recent rear end rebuild.

**aotte1** · 02-01-2020, 01:18 AM

Confirm PDX photos, 72’ K5 Blazer, same as these.

Les

**aotte1** · 02-01-2020, 01:24 AM

Confirm PDX photos, 72’ K5 Blazer, same as these.

Les

**Jcfcamaro** · 02-01-2020, 02:38 AM

72 k10

**Jcfcamaro** · 02-01-2020, 02:42 AM

Try again

**Jcfcamaro** · 02-01-2020, 02:47 AM

No matter which way I hold the darn phone it uploads them another way. If I take a picture and save it to my gallery , which would post them the correct way then it won't let me upload them. Something is going on with the web page. I contacted the administration but it's still doing it.But yes the arm is bent up and should hang down.

01-29-2020, 09:11 PM	#1
fishmunger Registered User Join Date: Jan 2005 Location: CA Posts: 411	Can someone tell me how the rear brake lines on my 72 K10 should be routed? (Pics) Recently purchased this truck...trying to go through it, order parts, and make her safe to drive! It has been lifted 4", and previously had a body lift (which has been removed). It looks like the PO didn't bother to extend brake lines (front or rear - got the front figured out - I think). Is the bracket where the top of the rear flex line connects look 'normal' to you? Or is it 'bent up'? It looks like they just removed the hold down bracket from the rear diff and bent the lines up to make it work. I plan on ordering new hard lines and a new extended rear brake line so I can get it back on the diff. The stock flex line is around 13-14", not sure how much longer I need to go? Looking at parts online, it appears an 18" line is what is called for with a 4" lift. Not sure if that will be too short though if indeed the upper bracket has been bent up and away? Also, should there be 2 tabs holding the brake line to the diff (1 on each side)? I've been looking at the extended lines offered by Inlinetube, ORD, and others. I don't suppose anyone knows of an oem style rubber line that is extended? I found the thread in which Special-K gave the part #s for extended front lines using C20 parts (awesome - going to buy them) but it looks like for the rear aftermarket is the only option? Attached Images

01-29-2020, 10:46 PM	#2
tim71 Senior Member Join Date: Oct 2015 Location: Brownsburg, IN Posts: 1,102	Re: Can someone tell me how the rear brake lines on my 72 K10 should be routed? (Pics 71 K1500, I should have taken 3 or 4 times as many photos as I did when I took my truck apart... Attached Images __________________ 1972 Blazer Highlander 1971 GMC K1500 SWB (sold) 2004 Corvette Z06 CE

01-29-2020, 11:10 PM	#3
fishmunger Registered User Join Date: Jan 2005 Location: CA Posts: 411	Re: Can someone tell me how the rear brake lines on my 72 K10 should be routed? (Pics Huh, that's quite a bit different. I wonder if it changed from 71 to 72? Very helpful though, thank you!

01-31-2020, 01:49 AM	#4
fishmunger Registered User Join Date: Jan 2005 Location: CA Posts: 411	Re: Can someone tell me how the rear brake lines on my 72 K10 should be routed? (Pics Anyone else got pics of their rear brake lines?

01-31-2020, 02:10 AM	#5
randy500 Account Suspended Join Date: Jul 2016 Location: Tacoma, WA Posts: 6,873	Re: Can someone tell me how the rear brake lines on my 72 K10 should be routed? (Pics 71 is different than 72. Your frame bracket is bent, i cant tell which way though in your pictures The lines attach at 2 places on the rear axle cover. The thin one attaches same bolt as the 71 posted. The heavy bracket attaches to a stud bolt, one bolt down from top bolt and to right side of cover.

01-31-2020, 04:40 PM	#6
fishmunger Registered User Join Date: Jan 2005 Location: CA Posts: 411	Re: Can someone tell me how the rear brake lines on my 72 K10 should be routed? (Pics Thanks Randy. I think it is likely bent 'up'. Any idea where I can find the little left side bracket/clamp? Haven't had any luck with the parts sites or inline tube, etc. I suppose I could make something...

01-31-2020, 11:28 PM	#7
PDXk5 Senior Member Join Date: Aug 2012 Location: Portland, OR Posts: 935	Re: Can someone tell me how the rear brake lines on my 72 K10 should be routed? (Pics Here are pics from my ‘72 Blazer’s recent rear end rebuild. Attached Images

02-01-2020, 01:18 AM	#8
aotte1 Registered User Join Date: Oct 2013 Location: lousiville Ky Posts: 2,649	Re: Can someone tell me how the rear brake lines on my 72 K10 should be routed? (Pics Confirm PDX photos, 72’ K5 Blazer, same as these. Les

02-01-2020, 01:24 AM	#9
aotte1 Registered User Join Date: Oct 2013 Location: lousiville Ky Posts: 2,649	Re: Can someone tell me how the rear brake lines on my 72 K10 should be routed? (Pics Confirm PDX photos, 72’ K5 Blazer, same as these. Les

02-01-2020, 02:38 AM	#10
Jcfcamaro Senior Member Join Date: Jul 2015 Location: Fairfax, Missouri Posts: 1,049	Re: Can someone tell me how the rear brake lines on my 72 K10 should be routed? (Pics 72 k10 Attached Images

02-01-2020, 02:42 AM	#11
Jcfcamaro Senior Member Join Date: Jul 2015 Location: Fairfax, Missouri Posts: 1,049	Re: Can someone tell me how the rear brake lines on my 72 K10 should be routed? (Pics Try again Attached Images

02-01-2020, 02:47 AM	#12
Jcfcamaro Senior Member Join Date: Jul 2015 Location: Fairfax, Missouri Posts: 1,049	Re: Can someone tell me how the rear brake lines on my 72 K10 should be routed? (Pics No matter which way I hold the darn phone it uploads them another way. If I take a picture and save it to my gallery , which would post them the correct way then it won't let me upload them. Something is going on with the web page. I contacted the administration but it's still doing it.But yes the arm is bent up and should hang down.



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.