Forum Discussion
BurbMan
Jun 16, 2015Explorer II
4X4Dodger wrote:donn0128 wrote:
Friend is a mobile tech. He tells me labor is about 800 dollars. So figure 10 to 12 hours. Basic install should be a cinch. The tough part is double flair the tube ends and getting them right
I dont recall anything about haveing to Double Flair the tube ends?? My understanding is the new drum/brake assy slips on the axle just like the old one did. It's a complete replacement. No modifications necessary.
Correct...donn0128 is talking about the brake lines that need to be made up to connect each axle to the main hydraulic unit.
Disc brakes are more efficient than drum brakes but require much more pressure to apply, which is why they didn't come into widespread use on passenger cars until power assist was available.
The OEM drum brakes on a trailer use electro-magnets to engage the shoes, so there is a wire running to each wheel. Disc brakes require more force to apply than a magnet can provide, so they need to be plumbed with hydraulic lines. The main hydraulic unit uses a 12v motor to build hydraulic pressure in the lines and apply the brakes.
Note to OP< be sure you have a brake controller that supports electric over hydraulic, some years of the factory Ford/GM/Ram controllers cannot.
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