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Matt --
The OD relay is under the dash, in through the glovebox hole and to the left, toward center dash. It's about 6" toward the center and 3" behind the dash, directly under the center-right vent. Usually it's clipped to a metal strut and buried under a buncha wiring harnesses.
Remove and discard the clip.
Remove the plastic cover and examine the backside of the printed circuit board under a bright light and using a magnifying glass. Often you'll see tiny circular cracks around several connections.
Resolder using a solder gun (150-200 Watts, or so) on the heavy connections, and a small iron (25 Watts, or so) on the smaller connections. Be careful to avoid bridging solder across adjacent traces. Use electronics solder NOT plumbing solder.
Th first picture shows the location of the OD relay (this pix of an '82 with manual tranny, but the location's the same).
The small picture below show an OD relay before resoldering, and the cracks are visible. The larger pix shows the same relay after resoldering, and also after I patched a small torn trace.
"...is the present condition dangerous for me to drive in?"
Not for ordinary driving around town. It's much like the pre-'83 automatics, most of which didn't have OD. I wouldn't drive coast to coast, and I suspect it's tough on the nerves.
Don Foster (near Cape Cod, MA)
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