Those that have done a 89-91 grill conversion

[kevinr1970]

I was putting the front of my truck back together this past weekend. I had a single headlight set-up and installed a quad (four) headlight Suburban/Blazer core support, grill and lights.

I ended up using the plug for the fuse block from a truck I had that was a quad headlight set-up and splicing the 89-91 harness onto that. Looking back maybe I could have just used my existing harness plug?
The only issue I had was the 89-91 harness had two dark blue and two light blue wires and my plug only had one of each. So I ran both of the same colors into one butt splice.

When I turned on my lights my side marker lights do not come on. When I turn on my turn signal they still don't come on and I was under the impression that the side markers would blink with the turn signals?

Also, while the low beams are on the outside headlights are on but when I click my high beam switch the inside lights come on bright but the outside headlights do not come on; is this the way a 89-91 works?

[Jonboy]

IIRC, your brights are working correctly. I did the ones I have converted the same way, but it seems there was an extra wire to splice going from 86 to 89. It's been a couple of years, so I don't remember exactly.

[Keith Seymore]

I also recall that your brights are working correctly.

It was designed that way because the engineers did not want to overload the circuit (the headlamp switch, I believe) but it was a huge customer dissatisfier. I think there were kits out there to make all four lights come on at the same time (or some folks simply wired them up that way).

K

[kevinr1970]

Originally Posted by Keith Seymore

I think there were kits out there to make all four lights come on at the same time (or some folks simply wired them up that way).

K

I have seen "high-beam" kits advertised and never really looked at what they were. They seemd to be more for the 88-98 C/K's but maybe they would be the same idea for these? I guess I will have to look into those now.

Thanks guys!



PS; any idea about the side marker lights? I believe the extra blue wires are for them, and are in paralel(?) with the blinker lights in the front. I *think* on the 89-91's the side markers blink with the front blinkers.