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Brakes 80 Mustang 4.2 rear chassis brake line for 5 lug conversion!

  • Thread starter Thread starter StangPowerLSX510
  • Start date Start date Aug 6, 2026
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    79 93 mustang
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StangPowerLSX510

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Aug 6, 2026
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Aug 6, 2026
#1
  • Aug 6, 2026
  • #1
Hey yall! So I am having a dilemma!

I have a 1980 mustang Ghia, 4.2. I have done the 5 lug install, with a 95 5.0 rear end. For the plumbing on the rear end, I went ahead and installed a kit from maximum Motorsports, that includes the 2 axle lines, center line that goes to chassis line in rear, and hardware.

My dilema is, I can’t seem to find a line that goes in between the chassis line on the rear of the car down to the axle. Maximum Motorsports and LMR has it for the 86-93 cars I believe but nothing for the 79-83 cars. Can anyone guide me in the right direction? Thanks so much in advance!
 

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AeroCoupe

lube between the nut and the face. I know my lubes
Founding Member
Oct 28, 2001
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Claremore, OK
Aug 7, 2026
#2
  • Aug 7, 2026
  • #2
You will need to switch to the 86-93 brake line from the firewall to the rear of the car which is the intermediate line. You will also need the bracket and fitting that attaches to the body of the car above the rear end.

LMR sells the bracket and fitting:

https://lmr.com/item/LRS-2073BRKT/mustang-v8-rear-upper-brake-hose-bracket-86-93?utm_source=google&utm_medium=cpc&gad_source=1&gad_campaignid=21804152373&gbraid=0AAAAAD62FUyq3Ig4fSJtIEjGV-8zWfEVX&gclid=CjwKCAjwhNbTBhB4EiwAsFSg-u96bFyHks9wga8dGsCKrMO3ABFzDDYXl4nmEm5obt6bG1agJPFM1hoC8TwQAvD_BwE

Watch the LMR video and it pretty much shows you where it installs and they also have the intermediate brake line available.

I did this years ago on my 83 T-Bird but got all my parts off a wrecked 5.0 Mustang.
 

limp

wrap a little cheese around it and its a done
5 Year Member
Oct 4, 2020
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Florida
Aug 9, 2026
#3
  • Aug 9, 2026
  • #3
The holes to install this bracket were there from the factory on my 83... I had to buy a long nose commercial style rivet gun to rivet this bracket to the floor with the rear end installed....
I had to buy these lines and bracket a 2nd time to install dual exhaust on my car....
 
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