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

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Dantheman1540

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Lower ball joints are being a pain to remove. Hammer didn't work. Heat didn't work. Pickle Forks didn't work. Now using a ball joint separator from Harbor Freight. Worked fine on a stuck upper ball joint but we have been grinding away on the tool to make it fit the lower ball joint and ran out of time. The girls are busy with their social schedules you know!

So at this point the struts and half shafts are out, calipers hanging on S-hooks and the engine oil cooler lines are disconnected but not removed. The front differential has been lowered but I think we're doing to pull it tomorrow to make more room. The front bumper cover and lights are off, we found the leak that the dealer said was not there, the lower connection on the condenser is leaking green oil everywhere. Bought an AC O-Ring and Seal kit from O'Reilly and had them refund me the condenser I ordered.

Bought a canopy from Harbor Freight and have that over the hood area in case it rains, all exposed connectors are pointed down too. Canopy secured on three corners with old brake rotors.

I forget to check and did not know that the lower control arm bolts and nuts are 15/16ths. 23mm too small, 24mm a little loose. Hopefully they'll come off tomorrow.

Still haven't gotten to the motor mounts or transmission oil cooler lines. Sure wish I was in my twenties again, all of this stuff would have been done already! The Good Lord is giving me patience but I keep wanting more.

Dang really getting after it! Glad to hear your able to beat things with hammers again! :cheers:
 

trailblazer

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As soon as I’m done with crawling underneath this thing on a regular basis, I’ll be hosing down the underside with sheep dip (Fluid Film). I don’t want corrosion to get a foothold. I’ve been a long time user of FF with great results. However that doesn’t stop me from assessing other products. Last year I tried out some WoolWax, which is close to FF but goes on thicker. This project I’m going to try a Cosmoline product in some of the areas exposed to spray from the tires and see how it holds up. Literature indicates it will harden to a waxy consistency. FF never hardens and does get washed away from areas exposed to a lot of spray.

View attachment 278075
CRC Marine HD Corrosion Inhibitor is referred to as the preferred solution in many comparison tests. Can be had for about nine bucks a can if you buy it by the case. Stuff goes on as a thick liquid but dries hard.
I’d do this work in the summer when it is warm (regardless of what flavour you choose) as it will flow better. A one gallon bucket of Fluid Film is about $35.
 
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Replaced the drivers side motor mount with the H3 mount yesterday afternoon.

Pulled front up on ramps so I could get underneath. Also pulled front splash shield in case I needed it out of the way to access the steering knuckle bolt, but actually didn't need to remove it.

I locked the steering wheel and removed the steering knuckle at the top bolt and bolt below the boot going into the rack. It slipped off easily.

The 3 frame bolts are easy to get to and remove.

No way to get to the block bolts from underneath, so everything was done from the top.

The OE mount heat shield is a ***** to work around and after messing with trying to get the socket to stay in the bolt heads for a half hour I cut the sides off with aviation snips. Made it much easier to get to the bolt heads.

The block bolts closer to the firewall were still hard to reach unless you stand on a stool and lay across the top of the engine bay. My chest and stomach feels bruised, lol.

I have a shop crane/engine hoist, but didn't feel like getting it out and figuring out a place to hook it to on the motor, so just used a jack underneath to lift on the drivers side exhaust at the cat converter. Worked well.

The new mount took half the time to put in and bolt up.

All in all, took about 3 hours, but that included beer breaks and playing catch with the dog. Also spent a lot if time trying to figure out how best to access the block bolts, from below, through wheel well, etc.

Sent from my SM-G930V using Tapatalk
 

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