What did you do to your OBS GMT400 Tahoe/Yukon Today?

[Rory Jenness]

Ordered a new set of headers and bought some felpro gaskets for them

What headers did you use? I got a 99 hoe and can't find long tubes around $200-300.

 

[99YukonSLT]

Those look awesome! What projectors did you use? Are they just sealed to the back of the headlight or do you have some sort of bezel around them? I wanted to do a retrofit so bad before I switched to my LED setup.

 

[chaingun427]

What headers did you use? I got a 99 hoe and can't find long tubes around $200-300.

For ls engines, schoenfield 1302ls1 fit 2wd and any number of 99-06 pace setters fit 4x4. I used shorties and a stock Y pipe

Sent from my SAMSUNG-SM-N920A using Tapatalk

 

[David A my 99 hoe]

Been a little while since I've been on. Did some painting on the good o hoe a few days ago and I believe it looks so much better with the black bottom. That do yall think?

Pretty much before picture

After

 

[iCajun]

99YukonSLT

They are Hella 90mm modules which are weatherproof, or at least they have been so far.
I used 1988 headlight brackets and made 16 gauge steel adapter plates.
The high beams fit easily but the Lo or Bi take some drilling and grinding to remove interference between the plastic bracket, back of the lights, and where the back of a 2 headlight type bucket would go. Lo beams can use a round hole in the adapter plate but an odd shape for the Bi’s. Of course I forgot to take a photo of those before mounting them.

Have gone from stock 97, to 1988, 1988 with relays to eliminate voltage drop and enable all 4 lights for Hi beam, Hella HID Hi and Low and now Hella HID Hi and Bi Hi/Low. I think that will be it for this year.

 

[99YukonSLT]

That's pretty cool. I was actually on the hunt for some of those older style headlights when I was looking for better lighting solutions.

 

[Rory Jenness]

For ls engines, schoenfield 1302ls1 fit 2wd and any number of 99-06 pace setters fit 4x4. I used shorties and a stock Y pipe

Sent from my SAMSUNG-SM-N920A using Tapatalk

Oh ok
I have a 99 5.7 350

 

[noJeepshere]

Oh ok
I have a 99 5.7 350

If it's 4wd, you won't find much, long tubes interfere with the front drive shaft. A good set of shorty's will improve performance and not cost a ton.

sent from a slablet

 

[jerryjoe28]

Oh ok
I have a 99 5.7 350

I have Gibson shortys on my 97 4wd

 

[iCajun]

That's pretty cool. I was actually on the hunt for some of those older style headlights when I was looking for better lighting solutions.

I think the 1988/89 is the best looking setup and with the relays for full voltage it is amazing how bright the sealed beams are, and how trouble free glass lenses are. I have a 1988 K3500 that I installed relays on last summer, and a selector switch for 2 or 4 light operation. Wish I had done that years ago. I am the original owner and never realized how dim they were. Found the extra 88 lights in the junkyard for about $50 a set. The selectable 2/4 is kind of nice depending on if there is snow on the road.