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searched headlight mod

531 views 3 replies 3 participants last post by  88K1500TEX 
#1 ·
anyone done their own for 90 gmc to get high and low on at the same time? i know they sell kits but i like diy.

thanks
 
#4 ·
Ive never done it as all four come on with my 85..

But all that is required is a relay you acuate the relay with the high beam light wire

and then have the output of the relay going to the low beam wire circuit

you could put a switch in the system to be able to disable it needed.
 
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