Backup Lights on a 1968

Q: Backup Lights on a 1968

I have a 1968 Firebird, 6 cylinder with 3 speed standard shift on the steering column. I’m trying to figure out how to adjust when the back up lights come on. I can’t find the sensor. Any ideas where it is?

A: From the 1968 Pontiac Service Manual, pg 12-22:

Back Up Lamp Switch

….(T)o adjust back up lamp switch use the following procedures and Fig. 12-27. (For auto, see neutralizer switch adjustment instructions).

All Manual Transmission with COLUMN Shift

1. Insert 0.090 gauge pin thru hole in switch body, and into hole in Drive tang.

2. Set transmission gearshift lever in reverse position.

3. Insert switch drive tang in shifter tube slot with tang touching R.H. edge of slot and assemble switch.

4. Remove gauge pin.

All Manual Transmission with FLOOR Shift

1. Place lever in reverse position.

2. Position switch so that plunger is fully depressed against lever.

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