What did you do to your NNBS GMT900 Tahoe/Yukon Today?

[George B]

Ordered a negative battery cable from these guys.

Battery Cables - Custom Made Battery Cables

www.batterycablesusa.com

Got one made from 33” of 2GA with the ends on it already for 20 bucks. The small ground cable to the frame by the bumper is smashed and corroded so I plan to put an end on the old battery cable and run it from the block to the frame.

 

[cmatt]

Nice work. Looks pretty good in there.

It wasn’t too bad. Still a bit more sludge than I’d like. About 1/8 inch layer in the bottom of the pan. Maybe that’s normal at 150k. It’s been through four oil changes since I’ve had it. Each time I’ve substituted 1/2 quart of ATF in an attempt to provide some extra cleaning action since I don’t know the complete vehicle history. It has helped quiet down a noisy lifter.

Got it cleaned up and a new gasket riveted to the pan.

 

[cmatt]

i do not envy you on that one..there is ALOT of issh in the way of that pan

I wholeheartedly agree with this statement. Especially that pesky front axle.

 

[cmatt]

Oh and a 1/8 x 5/8 aluminum rivet works perfectly for the oil pan gasket.

 

[gooffeyguy]

Oh and a 1/8 x 5/8 aluminum rivet works perfectly for the oil pan gasket.

View attachment 359013

The gasket gets riveted on? In how many places?

Guess when changing out/replacing the pan gasket you have to drill out the rivets holding the previous one on there?

 

[Rocket Man]

The gasket gets riveted on? In how many places?

Guess when changing out/replacing the pan gasket you have to drill out the rivets holding the previous one on there?

Yes. 2 rivets iirc. It’s just to hold the gasket in place while you maneuver the pan into place. It’s a great idea IMO.

 

[gooffeyguy]

Yes. 2 rivets iirc. It’s just to hold the gasket in place while you maneuver the pan into place. It’s a great idea IMO.

I've seen better oil pan gasket install retention systems that don't require a rivet gun or drill to r/r

 

[cmatt]

Per the service manual, the rivets aren’t required to be replaced. But I’m OCD. It allowed me to get it perfectly centered and the gasket didn’t budge at all during installation which was nice. My guess is that, at the factory, the oil pan is prob put on with the engine upside down. So the gasket needs to be held securely to allow for higher production rates.

I’ve seen folks use zip ties which seem effective.

 

[Rocket Man]

I've seen better oil pan gasket install retention systems that don't require a rivet gun or drill to r/r

I mean, 2 pop rivets is pretty damn easy and effective. You don’t even need to use the rivets if you don’t want to. Gravity works every time I’ve tested it.

 

[Just Fishing]

I went with the no rivets on the oil pan install, wasn't hard to keep centered.
I also for some reason felt like the rivets could get in the way, but I'm sure it's away from the sealing surface anyways.

 

[Rocket Man]

I went with the no rivets on the oil pan install, wasn't hard to keep centered.
I also for some reason felt like the rivets could get in the way, but I'm sure it's away from the sealing surface anyways.

They don’t. You think if they did, the factory would use them? You’re killin me man! Just look at them. They’re recessed.

Edit: also a note- if you’re 2WD I’m sure it’s easier, or if you pull the front diff. I just had mine drooping so it’s hard to wiggle the pan in place and not have the gasket hit on something and fall off so the pop rivets worked awesome for me.

 

[lowh07]

Love how they turned out

 

[gooffeyguy]

Those white tubes look odd though, think they would be black. Johnny 5 is alive!

 

[lowh07]

Those white tubes look odd though, think they would be black. Johnny 5 is alive!

Thanks..............

 

[Just Fishing]

Those white tubes look odd though, think they would be black. Johnny 5 is alive!

 

[lowh07]

So y’all have never seen color matched headlights? Got it

 

[Just Fishing]

So y’all have never seen color matched headlights? Got it

Must see installed.

And I think they look cool, even if not color matched...

 

[Geoffsfas10]

So y’all have never seen color matched headlights? Got it

I wanna see the output shots!! thats the real part i care about.

 

[Just Fishing]

I got the oil pan on, front axle installed and torqued in, and the crossmember installed!

The silly ARP balancer bolt kept backing out on me while working the crank, so I'm reinstalling the balancer.
I'm tempted to toss a stock bolt back in there...

And I have been fumbling around trying to figure out how/where the heck I'm going to route the oil pressure gauge feed tube.
They sure didn't give me much to work with...

So, I ordered another gauge for the cooler line reading, and some longer tubing...
I'm not expecting the thrust bearing to last, so I'm hoping I can at least get some real pressure readings for line and cooler lines for all of my effort.


Ever look at a project you're doing and do a little self-reflecting?

 

[lowh07]

Must see installed.

And I think they look cool, even if not color matched...

Thanks, I think they’re different in a good way. I didn’t want any chrome, and I didn’t want to take the easy (expected, common, lazy, boring) way out of just blacking them out. I like the contrast, and I think the factory “tubes” look pretty cool, so the white really highlights them