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- Joined
- Aug 6, 2007
- Messages
- 3,843
- Reaction score
- 1,679
- Points
- 113
- Location
- Macon/Fort Valley, GA
- Vehicle Year
- 1999
- Make / Model
- Ford
- Engine Type
- V8
- Transmission
- Automatic
- 2WD / 4WD
- 4WD
So back so slowly working on my V8 swap project and am quickly approaching the brake system portion. Already got most of my brake system squared away.
Cobra 13" brake swap
Explorer 8.8" Disk Brake axle (98 Explorer)
Explorer Master Cylinder (also 98 Explorer)
Explorer 5.0L brake booster (IIRC, or maybe 4.0L Ranger?)
All new Ni-Cop hard line in front and to rear axle
New hoses all round
Next step on the project will actually be running new fuel hard lines down the frame rail to a rear mounted tank. While routing and mounting I also want to get my brake hard lines done before setting the cab back on the frame.
I know on old pre-abs trucks with drum brakes a proportioning valve is used to adjust pressure of the rear drums relative to the front disks. IIRC this proportioning valve was necessary because disks operate at a higher pressure that would cause the drum brakes to lock up. Since I'll be running disks front and rear I'm thinking that a proportioning valve is no longer necessary, am I right?
I know that it is necessary to allow for flex between the master cylinder (or prop valve if used) and the frame. I know that one acceptable method to allow for this flex is to make a coil of brake tube where it comes off of the master cylinder. Is there any reason that I couldn't/shouldn't use a steel braided brake line from the master to the hard line in place of the coil? I'd still be running hard lines down and across the frame, but a flex hose would make for a lot nicer installation and easier maintenance than the coil.
Cobra 13" brake swap
Explorer 8.8" Disk Brake axle (98 Explorer)
Explorer Master Cylinder (also 98 Explorer)
Explorer 5.0L brake booster (IIRC, or maybe 4.0L Ranger?)
All new Ni-Cop hard line in front and to rear axle
New hoses all round
Next step on the project will actually be running new fuel hard lines down the frame rail to a rear mounted tank. While routing and mounting I also want to get my brake hard lines done before setting the cab back on the frame.
I know on old pre-abs trucks with drum brakes a proportioning valve is used to adjust pressure of the rear drums relative to the front disks. IIRC this proportioning valve was necessary because disks operate at a higher pressure that would cause the drum brakes to lock up. Since I'll be running disks front and rear I'm thinking that a proportioning valve is no longer necessary, am I right?
I know that it is necessary to allow for flex between the master cylinder (or prop valve if used) and the frame. I know that one acceptable method to allow for this flex is to make a coil of brake tube where it comes off of the master cylinder. Is there any reason that I couldn't/shouldn't use a steel braided brake line from the master to the hard line in place of the coil? I'd still be running hard lines down and across the frame, but a flex hose would make for a lot nicer installation and easier maintenance than the coil.
