When I put my 3G alt in I will also put in a relay system from painless performance products via summit racing. http://www.painlessperformance.com/w...rchField=30802http://www.summitracing.com/parts/PRF-30802/
I know it is for brand C but I will adapt it to the 1990 Grand Marquis. It will run all 6 filaments when high beans are selected. I am sure it will beat holding the turn signal/headlight stalk back to get all the 6filament to light up. I may later upgrade my high beam only head lights to after market European H1 halogen head lights to get more distance. I may even do this to 2 older Ford/Mercury which already have all European 4 halogen headlight systems with relay for 4 filaments.
I know it is for brand C but I will adapt it to the 1990 Grand Marquis. It will run all 6 filaments when high beans are selected. I am sure it will beat holding the turn signal/headlight stalk back to get all the 6filament to light up. I may later upgrade my high beam only head lights to after market European H1 halogen head lights to get more distance. I may even do this to 2 older Ford/Mercury which already have all European 4 halogen headlight systems with relay for 4 filaments.
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