Just went thru the dash compartment replacing all the burned out light bulbs.

Everything is now working but am unhappy with the amount of light on the left side of the speedometer (compared to the right), and the upper half of the heater/defrost control.

The illumination is tons better since they have been re-lumped, but those areas still have my attention.

Is this normal or am I missing something?

I was able to find only 2 #57 bulbs for the speedometer and 2 #57 bulbs for the heater control panel.

Any ideas?



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On the heater or heater/AC controls you have 4 light bulbs. 2 above and either 2 below or 1 below and 1 on side depending on year and heater or AC/Heat.

For the speed you have the main RH and LH bulbs.  There is another bulb at the bottom at the shift quadrant and the high beam bulb. Look at Fig 15-3 in your shop manual for an illustration. here is a scan form the 1964 Shop Manual which happens to be the same Fig #:

My left side of speedometer used to be much darker as well.  I turns out the little speedometer light bulb wasn't making a great connection.  I'd go under the dash with the lights on and turn it slightly (or reinstall it) and I bet you'll get it going again.  That's what I did and now my speedometer is lit up like a Christmas tree.

Thx for the replies!
My shop manual only mentions 2 bulbs for the heater control but it makes sense since only the bottom seems to be lit up
I will reseat the left side speedo light and see if it helps

Look at your shop manual page 12-95 Fig 12-109 in lower right corner. It shows two lights for "Heater & Vent Control Dial - Lower" and then below it two lights for "Heater & Vent Control Dial - Upper" for a total of 4. The 64's had 4 bulbs, but you had 2 on top, one on bottom, and one on the far left driver side next to the temp dial.


We can close out the thread.....
I reseated the plastic socket......problem solved

I have replaced all the bulbs in my instrument panel. However, I’d things a little brighter. (Perhaps it’s my old eyes). Are there any modern replacements like halogen of LED that are significantly bright?

Replace with LED you will be happy



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