Where to Drill Into the Firewall When Installing the Demco Duo Stay and Play
Updated 03/03/2025 | Published 02/26/2025
Question:
I am installing a new Demco Duo Stay and Play in a 24 Wrangler with manual trans. I need to drill a hole through the firewall because the hole used in th eonline installation videos is used by the clutch assembly on a manual Wrangler . Do you have any guidance or drawing to show where it is safe to drill this hole.
asked by: Robert S
Expert Reply:
Hey Robert welcome back! We don't have any drawing or diagrams. I attached a screenshot below from the instructions for the Demco Stay-IN-Play Duo item # DM86VR. They're pretty vague but the main thing they stress is to avoid wiring, which seems like common sense. I would just try to find an empty spot close to the clutch assembly you can comfortably and confidently drill through.
(click to enlarge)
Product Page this Question was Asked From
Demco Stay-IN-Play Duo Braking System for RVs w/ Hydraulic Brakes - Wireless Monitor - Proportional
- Flat Tow Brake System
- Brake Systems
- Proportional System
- One-Time Setup
- Vehicle Battery
- Fixed System
- Power Assist Brake Compatible
- Hydraulic Brakes
- Wireless Display
- Demco
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on Flat Tow Brake System
Bob S.
3/2/2025
Thanks for response Jerred : it turns out there is a second hole in the firewall just four inches below the large hole use by the clutch cylinder . This hole is about 5/8” in diam and has a small rubber plug in it. I removed this plug and pushed an awl through the hole to see where it went . It came through the firewall and pierced a plastic sheet which is covering rhe firewall at that point. I used a utility knife to open the rubber sheet a bit and was able to push the brake actuator tubing and the sensor wiring through the resultant hole . I then took the rubber plug and used a soldering iron to melt a hole in the middle to create a grommet. This worked well!