🔧 Rear Window Regulator - Replacement

Rear door window regulators on your Ram are the lift mechanisms that raise and lower the glass. If the window is slow, stuck, off-track, or makes grinding noises, the regulator or motor assembly usually needs replacement.

Difficulty Level: Intermediate | Estimated Time: 1.5-3 hours per side

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⚠️ Safety & Precautions

• Disconnect the negative battery cable before starting. Power window motors can move unexpectedly.
• Support the glass with tape or a helper before removing the regulator. The window can drop suddenly.
• Use caution around sharp metal edges inside the door.
• If your rear door has a side-impact airbag, avoid probing or cutting into airbag wiring.
• Keep the ignition off while unplugging window motor connectors.

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🔧 Required Tools

You'll need the following tools for this repair:

• 10mm socket
• 7mm socket
• Ratchet
• Short extension
• Trim panel removal tool
• Phillips screwdriver
• Flat blade trim tool
• Torx T20 screwdriver
• Torx T30 screwdriver
• Needle-nose pliers
• Painter's tape
• Gloves
• Safety glasses

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Rear window regulator assembly - Qty: 1 per side
• Rear window motor - Qty: 1 per side if not included with regulator
• Door panel clip set - Qty: 1
• Plastic vapor barrier adhesive - Qty: 1
• Butyl tape or door sealant - Qty: 1

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📋 Before You Begin

• Park on level ground and set the parking brake.
• Lower the rear window slightly if it still moves, then disconnect the battery.
• If the glass is broken, vacuum the door cavity before opening it.
• Use painter's tape to hold the glass in the raised position before removing the regulator.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Disconnect power

• Use a 10mm socket to disconnect the negative battery cable.
• Wait 2 minutes before working inside the door.

Step 2: Remove the rear door trim panel

• Use a trim panel removal tool to pop off the bezel covers and clips.
• Use a 7mm socket and Phillips screwdriver to remove the panel screws.
• Lift the door panel upward and away from the door.
• Disconnect any speaker or switch connectors.

Step 3: Peel back the vapor barrier

• Use a flat blade trim tool to carefully lift the vapor barrier.
• Keep the barrier clean so it can be reused.
• Go slow to avoid tearing it.

Step 4: Secure the glass

• Raise the window glass fully by hand if possible.
• Use painter's tape from the outside of the door to hold the glass in place.
• If the glass is already stuck down, support it from below before removing the regulator.

Step 5: Remove the regulator mounting bolts

• Use a 10mm socket, ratchet, and short extension to remove the regulator bolts.
• Loosen the glass-to-regulator fasteners first if accessible.
• Torque to 9 Nm (80 in-lbs) on reassembly for small regulator fasteners unless the replacement part instructions specify otherwise.

Step 6: Disconnect the window motor

• Use your fingers or a flat blade trim tool to release the motor connector lock.
• Unplug the connector from the motor.

Step 7: Remove the regulator assembly

• Use a Torx T30 screwdriver or 10mm socket if needed, depending on the fastener style.
• Rotate and slide the regulator out through the service opening in the door.
• Be careful not to scratch the glass or door skin.

Step 8: Install the new regulator

• Feed the new regulator into the door opening.
• Use a 10mm socket or Torx T30 screwdriver to loosely install the mounting bolts first.
• Reconnect the motor electrical connector.
• Attach the regulator to the glass if it was disconnected.
• Torque to 9 Nm (80 in-lbs) for the regulator fasteners unless the new part instructions say otherwise.

Step 9: Test window movement before reassembly

• Reconnect the negative battery cable with a 10mm socket.
• Cycle the window up and down while watching the glass track smoothly.
• If the glass binds, stop and realign the regulator before closing the door.
• Check movement before reinstalling the panel.

Step 10: Reinstall the door panel

• Reapply the vapor barrier using the existing adhesive or butyl tape.
• Reconnect all electrical connectors.
• Hang the panel on the upper door lip, then press the clips into place.
• Use a 7mm socket and Phillips screwdriver to reinstall screws and trim covers.

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✅ After Repair

• Test the window from the switch at least 5 times.
• Confirm the glass seals fully at the top.
• Listen for grinding, clicking, or binding.
• If the window has auto-up/down, relearn the function by holding the switch fully up and fully down for a few seconds at each end.

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💰 DIY vs Shop Cost

Shop Cost: $350-$700 per side (parts + labor)

DIY Cost: $90-$220 per side (parts only)

You Save: $260-$480 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 1.5-3 hours per side.

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🎯 Ready to get started?

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