Disc Brake Conversion - Brake Line Routing
 

70 C20, 83 C20 parts truck. I think I have everything sorted out aside from how I will run the hard brake lines. As I see it, I have the following options.

1. Follow the 73-87 routing with the prop valve under the fan. I will need to drill holes to mount the prop valve. It appears I have holes in the frame I can use for the flex hoses. I like this option because the routing matches the rest of the front brake system. The flex lines should be the proper length. I will have to buy and bend basically all new lines for this.

2. Follow the 67-70 routing with the prop valve under the master. Plug one front port on the prop valve, so I can use the old line with a T. Connect the flex hose to the stock location. This one is nice because I can reuse my front lines. It makes it easier to install a line lock if I want. I am not too crazy about plugging a port on the prop valve. I am not sure how well the flex lines line up / reach.

3. Hybrid - Follow the 67-70 routing, but use 2 front lines rather than 1 line and a T. This solution seems OK. No plugging lines on the prop valve. Have to remake the front lines

Re: Disc Brake Conversion - Brake Line Routing
 

If your using the 83 stuff I would plumb it like the 83 was.....i also wouldnt keep any of the 50yr old brake lines...if your going to this much trouble ,use new lines....they dont cost that much.....

Re: Disc Brake Conversion - Brake Line Routing
 

Thanks for your reply. That is what I am leaning toward. I did replace most of the hard lines about 7 years ago.