UO1 Roof Marker Lamps?
 

Anyone have a truck with the RPO UO1 roof marker lamps? These don't seem to common. I'm curious if the roof skin is at all different vs. non-lamp equipped trucks like the 67-72 models. Anyone have a GM diagram for these?

Re: UO1 Roof Marker Lamps?
 

Hey that's cool. I always wondered who put those on my mother's half ton. Apparently the factory did.

Re: UO1 Roof Marker Lamps?
 

I'm pretty sure the roof is the same, just has holes for the wires and screws. I love cab lights, if my Yukon didn't have a visor I'd put those lights on it....But pretty sure it was an option for any truck. But kinda rare for a 1/2 ton.

Re: UO1 Roof Marker Lamps?
 

It would be fun to add a set. Curious what that all involves aside from the holes. Agree, the roof looks the same.

Sean do you have any close up photos of the lights?

Re: UO1 Roof Marker Lamps?
 

I've got it at my house until I fix the air conditioning.

Re: UO1 Roof Marker Lamps?
 

Good deal. Thanks for posting those.

Re: UO1 Roof Marker Lamps?
 

No special roof panel. I ordered them on my '92 K3500. My Suburban has a utility vehicle vibe and I've been wanting to get a set for it.

Re: UO1 Roof Marker Lamps?
 

There is a write-up on gmt400.com with measurements and thorough details how to add them in.

If I can ever bring myself to drill the holes, I'll put the NIB OEM set I have on mine.

Re: UO1 Roof Marker Lamps?
 

My windshield will be replaced next week. I'm going to find where the tabs for the headliner are while the glass is out so I can install clearance lamps on the 'Burb

Re: UO1 Roof Marker Lamps?
 

Nice! Post up pics when possible.

Re: UO1 Roof Marker Lamps?
 

That's nice!

Re: UO1 Roof Marker Lamps?
 

The gmt400.com site thread on this addition was a huge help.

Now for the roof rack addition.

Re: UO1 Roof Marker Lamps?
 

Joining late, but U01 was and is a free flow option.

You can check the box on the order form to add them to anything, and they are required on any vehicle over 80" wide.

K

Re: UO1 Roof Marker Lamps?
 

Hey Keith,
I was thinking of adding them to my squarebody Big10. Is there a part number for the set?

Re: UO1 Roof Marker Lamps?
 

Do you have a link?

Re: UO1 Roof Marker Lamps?
 

You bet: https://www.gmt400.com/threads/cab-light-install.117/

I was able to scrounge all GM NOS pieces for the install including the harness.

Re: UO1 Roof Marker Lamps?
 

I thought it came standard on 3/4 and 1 tons. But the 3 trucks I have now, and a handful in the past didn't have em. I have a 99 1 ton CCLB, and the 2 3/4 tons in my sig, none have the lights. But yet I see have 1/2 RGLB plane janes with them. I like em tho!!!!

Re: UO1 Roof Marker Lamps?
 

I had to order them on my '92 K3500 single rear pickup. I added the tailgate lamps, the same as duallies.