electrical

Turn Signal Bulb - Front

for 1970 AMC Rebel Machine 390ci V8 · RWD

Difficulty

Easy

Time

18 min

Tools

Steps

✓Fact-checked. Built from OLP's spec database, then independently fact-checked line by line with every correction applied. Master-tech sign-off by Chris Hackleman is queued. Cross-check torque values against the factory manual, and stop if anything looks unsafe. How our data is made.

This procedure covers the replacement of the front turn signal bulb on a 1970 AMC Rebel Machine, requiring removal of the front turn signal lens assembly.

Warnings

⚠Allow turn signal bulb to cool completely before attempting removal to avoid burns.

ℹ️Avoid touching the glass portion of new bulbs with bare hands as oils can reduce bulb life. Use a clean cloth if necessary.

Tools required

Phillips screwdriverEssential

Flathead screwdriver

Work gloves

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Parts

Front turn signal bulb × 1 — 1157 or 1157A amber bulb

As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.

Preparation

Park vehicle on level surface and turn off ignition
Ensure turn signals have been off for at least 5 minutes to allow bulbs to cool
Engage parking brake

Procedure

1
Access the front turn signal assembly
Locate the front turn signal assembly on the affected side. On the 1970 AMC Rebel Machine, the turn signal housing is integrated into the front bumper grille area below the headlight assembly.
2
Remove the turn signal lens retaining screws
Using a Phillips screwdriver, remove the two screws securing the turn signal lens cover to the housing. These screws are typically located at the top and bottom of the lens assembly. Keep screws in a safe location for reinstallation.
3
Remove the lens cover
Carefully pull the lens cover straight away from the housing. If the lens is stuck due to age or weather sealing, gently pry around the edges with a flathead screwdriver wrapped in cloth to avoid damaging the chrome or paint.
4
Remove the failed bulb
Press the bulb gently inward while rotating counterclockwise approximately 1/4 turn until it releases from the bayonet socket. Pull the bulb straight out of the socket. Inspect the socket for corrosion or damage.
5
Install the new bulb
Insert the new 1157 amber turn signal bulb into the socket, ensuring the pins on the bulb base align with the slots in the socket. Press inward gently and rotate clockwise 1/4 turn until the bulb locks into place.
6
Test the new bulb
Before reassembling the lens, turn the ignition to the accessory position and activate the turn signal to verify the new bulb illuminates properly. Also check that the bulb is seated correctly and not loose in the socket.
7
Reinstall the lens cover
Position the lens cover over the housing, ensuring any rubber gasket or seal is properly seated. Align the screw holes and press the lens firmly against the housing.
8
Secure the lens assembly
Install the two retaining screws and tighten with a Phillips screwdriver. Tighten screws evenly and snugly, but do not overtighten as the lens is made of plastic and can crack.

Reassembly

Ensure lens cover is flush with housing and gasket is properly sealed to prevent moisture intrusion
Verify both retaining screws are secure but not overtightened

Verification

Turn ignition to accessory position and activate turn signals to verify proper operation
Check that turn signal flashes at normal rate (approximately 60-120 flashes per minute)
Visually inspect from outside vehicle to confirm proper brightness and amber color
Verify lens cover is secure and properly sealed

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