What did you do to your NBS GMT800 Tahoe/Yukon Today?

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

mattbta

Full Access Member
Joined
Jun 19, 2012
Posts
1,038
Reaction score
1,844
Location
Frisco, TX
Received the K5L fans in a day and a half. Cleaned them up, installed, tested with Tech 2. Will drive it later and keep an eye on voltage. Haven’t put the Mechman in.

There’s a slight difference in the housings, the K5L have a couple spots for something to bolt into it on the right side or to bolt to the radiator. Little bit of contact with the throttle body coolant hose. I’ll keep an eye on it.
 

blueinkd

Full Access Member
Joined
Nov 21, 2017
Posts
621
Reaction score
1,486
Received the K5L fans in a day and a half. Cleaned them up, installed, tested with Tech 2. Will drive it later and keep an eye on voltage. Haven’t put the Mechman in.

There’s a slight difference in the housings, the K5L have a couple spots for something to bolt into it on the right side or to bolt to the radiator. Little bit of contact with the throttle body coolant hose. I’ll keep an eye on it.
Can you shed some light on this K5L fan mod??
 

NoReverseYukon

Full Access Member
Joined
Feb 27, 2019
Posts
553
Reaction score
1,213
Location
NE Wisconsin
Well, the old Yukon delivered several kicks to my ball bag today.
I had Denali headlights/parking lights/grill all set to go on today.
First, I broke the retaining tab off one of the parking lights. First kick to the balls.
I tried to use some plastic welding epoxy to fix it with no luck. 2nd kick.
I zip-tied it into place as a temporary victory until I could get another. Swing and a miss.
So I go to put the grille on and the damned thing isn't lining up.
Check this out : IMG_20230513_190209453.jpg
IMG_20230513_190224301.jpg
IMG_20230513_190238049.jpg
- the Denali grille bottom mounting points are about 1 1/2" wider apart.

That was a direct shot. I crawled back inside and got out a bag of ice.
 

Jobi-Wan Kenobi

Full Access Member
Joined
Aug 27, 2022
Posts
207
Reaction score
293
I got the rear fender flares and wheel skins pulled today and got the body all washed out in preparation for the rocker panels and lower quarter panels to be replaced.
 

Attachments

  • received_263673056166590.jpeg
    received_263673056166590.jpeg
    313.9 KB · Views: 3

mattbta

Full Access Member
Joined
Jun 19, 2012
Posts
1,038
Reaction score
1,844
Location
Frisco, TX
Can you shed some light on this K5L fan mod??
It’s an RPO code for a heavy duty cooling package. I don’t know if it was on our platform but is for the GMT-900. One component is 700 watt fans versus the standard 500. The first design has 9 & 7 blade fans with a second design having two rimless 5 blades. (The standard are 5 & 7). The higher wattage moves more air. I also don’t know what other components of the RPO code entail. Seems the 34” radiator is mostly the same.

Couple of informative threads in the NNBS:

 
Top