Joined: Oct 10, 2012 Posts: 310 Location: Toronto, Ontario, Canada
Posted: Sun Jul 19, 2015 8:22 am Post subject: Mechanical Brake Light Switch Installation Guide
Here is a step-by-step guide for the installation of a mechanical brake light switch in place of the standard hydraulic. It is surprisingly quick, easy, and painless!
Mechanical switch AC Delco # U858, Napa SL128.
Find the rough position which puts the switch arm behind the pedal arm.
Mark, Drill, and mount the switch to the master cylinder floor pan cover.
Attach brake switch harness and test for continuity across the leads. I removed the douglas connector shells from the harness before this step.
Re-install the cover, ensuring that the switch arm is behind the pedal arm.
End result of the switch in position.
There you have it. Good luck! _________________ Jordan
Joined: Jun 14, 2006 Posts: 226 Location: Wijnegem Belgium Europe
Posted: Fri Jul 31, 2015 3:18 am Post subject:
I did the same setup, the original switch stays in position, the wires where long enough to put on the new switch. Now I have brakelights when i press the pedal before the brakes start to work, a good improvement in daily traffic.
i used the napa echlin sl 175
thanks for the tip
gr; Erik _________________ 1942 GPW 71336 my son's jeep restored now
1951 M38 MC11891
1953 VW beetle (genuine german Käfer )
1957 fantastic wife
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