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

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eohat

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If your doing a straight swap @eohat you don't need anything. Use every thing from your 5.3. I did and it ran great on the 5.3 tune also. But if you have a heavy foot it will lean out and pop #7 piston. (Never experienced it but read it)
I recently discover that if you want to use the exhaust off a escalade or Denali the drivers side exhaust manifold is different. Keep that in mind for future mods. I am adding the magnaflow cat back system for the escalade but need to change the front pipes. Couldn't cause of the manifold. Any help you need don't hesitate I will do my best to help

Thank you sir, appreciate that.
 

ATIII

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You'll have to mod your floor jack with a Snap-on handle and wheels; maybe start a build thread! :D
Done!
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Still looks like it says Snap-on, on the right side. Lol


Sent from the *******, mid push.
 

mattbta

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Swapped out new jounce bumpers in the front. This is a Texas RWD truck with 126k miles. Not sure if I expected them to be worse or better. Hopefully it calms down some of the bounciness that I was associating with the 5100's. Easy job and despite 15153958 listed as for 4x4 and another # I found for RWD, these that I pulled off have the same part # and I'm the original owner.

JounceBumper.jpg
 

Tonyrodz

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Came today. I had no idea they had little springs in them. I bought a set over a yr ago and reused the heat shields from the old wires, and I don't think they had springs in them.
 

05Single

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Swapped out new jounce bumpers in the front. This is a Texas RWD truck with 126k miles. Not sure if I expected them to be worse or better. Hopefully it calms down some of the bounciness that I was associating with the 5100's. Easy job and despite 15153958 listed as for 4x4 and another # I found for RWD, these that I pulled off have the same part # and I'm the original owner.

JounceBumper.jpg
Preety sure they're designed to last longer than that. Looks like the Texas heat got to them.
Get back to us and let us know how the ride difference is with new ones.
 

Rocket Man

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Swapped out new jounce bumpers in the front. This is a Texas RWD truck with 126k miles. Not sure if I expected them to be worse or better. Hopefully it calms down some of the bounciness that I was associating with the 5100's. Easy job and despite 15153958 listed as for 4x4 and another # I found for RWD, these that I pulled off have the same part # and I'm the original owner.

JounceBumper.jpg
I believe they're the same for all the NBS. That's the number for the ones on my 02 Denali AWD. Those look even worse than mine were at 130k. Those should help.
 

Tonyrodz

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Preety sure they're designed to last longer than that. Looks like the Texas heat got to them.
Get back to us and let us know how the ride difference is with new ones.
X2. I have my replacements ready to go too. I'd like to know if it's going to make a difference.
 

mattbta

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I believe they're the same for all the NBS. That's the number for the ones on my 02 Denali AWD. Those look even worse than mine were at 130k. Those should help.

I have seen 15153959 as being for Z-71 that are stiffer as well and I may try those if these don't help out much. I believe that would make me a tad higher in the front and probably need an alignment.

Will report back after getting some more miles/seat time on these current new ones.
 

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