Originally Posted by
OldStyle
Is the broken board on your original? Broken at the plug or burnt circuit?
There is a ID engineering number printed on the circuit board.
If they match, you can change over the board.
D3TZ-10K843-A .. Printed Circuit Board / Use with Oil/Amp
Gauges / Marked w/ID engineering number:
D3TF-10C956-AA
Applications: 1973/74 F100/350.
-------------------------------
D3TZ-10K843-B .. Printed Circuit Board / Use with Oil/Amp
Warning Lights / Marked:
D3TF-10C956-CA
Applications: 1973/75 F100/350 / 1975 Econoline.
------------------------------------------------
D5TZ-10K843-A .. Printed Circuit Board / Use with Oil/Amp
Gauges / Marked
D5TF-10C956-AA
Applications: 1975 F100/350
before serial number W40,001.
----------------------------------------------------------
D5TZ-10K843-C .. Printed Circuit Board / Use with Oil/Amp
Gauges / Marked:
D5TF-10C956-CA
Applications: 1975 F100/350
from serial number W40,001 / 1975 Econoline.
-----------------------------------------------------------------------
D6TZ-10K843-B .. Printed Circuit Board / Use with Oil/Amp
Gauges / Marked:
D6TF-10C956-BA
Applications: 1976/79 F100/350 / 1976/
91 Econoline / 1978/79 Bronco.
--------------------------------------------------------------------
D6TZ-10K843-C .. Printed Circuit Board / Use with Oil/Amp
Warning Lights / Marked:
D6TF-10956-CA
Applications: 1976/78 F100/350, Bronco & Econoline.
---------------------------------------------------
D9TZ-10K843-A .. Printed Circuit Board / Use with Oil/Amp
Warning Lights / Marked:
D9TF-10C956-AA
Applications: 1979 F100/350 & Bronco / 1979/
86 Econoline.
BE AWARE: 1975/79 F100/350 / 1975/80 Econoline / 1978/79 Bronco came with instrument cluster backs made from a composition material that can
TURN TO DUST before your very eyes!