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

[swathdiver]

What is the factory driveshaft critical speed (driveshaft rpm)?

Thought it was 4556 for our XLs but if that was so Wes would've blown up a 100 of them! Have read that the critical speed of the front one is 5000 rpms but that puts our top speed in the 130s.

Was trying to calculate it mathematically but was not sure about exact lengths (tube or ear to ear) and tube thickness. I'll revisit this someday unless someone beats me to it and saves my eyes!

 

[Sparksalot]

Kicked theothertwin out of the driveway. Brought thethirdtwin in.

 

[Tonyrodz]

Kicked theothertwin out of the driveway. Brought thethirdtwin in.

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When did you get the new addition? So you have 3 now? PPV also?

 

[Sparksalot]

When did you get the new addition? So you have 3 now? PPV also?

Picked it up today. It’s an LT. I traded one of the PPVs. Got what I paid for it 2 years ago.

@Rocket Man will be glad know the fleet has intact glass.

 

[RooTBeeRthe1st]

Kicked theothertwin out of the driveway. Brought thethirdtwin in.

Congartulations!

 

[Geotrash]

Congrats!

 

[Drwinlied]

New motor mounts in. Tomorrow it is getting a professional shine up. Lots of little scratches accumulated over the last year.

I'm hoping the detailer fixes all the rust, installs a new kooks longtube headers/full exhaust, does a transmission build, dod delete, cam, and throws on a blower...but my gut tells me he'll just do the detailing.

 

[iamdub]

I'm hoping the detailer fixes all the rust, installs a new kooks longtube headers/full exhaust, does a transmission build, dod delete, cam, and throws on a blower...but my gut tells me he'll just do the detailing.

I take it your wife doesn't casually pass by and see your forum posts over your shoulder?

I'd like to think that TYF is a place where we can share our deepest, darkest, naughtiest secrets and dreams in confidence.

 

[RooTBeeRthe1st]

New motor mounts in. Tomorrow it is getting a professional shine up. Lots of little scratches accumulated over the last year.

I'm hoping the detailer fixes all the rust, installs a new kooks longtube headers/full exhaust, does a transmission build, dod delete, cam, and throws on a blower...but my gut tells me he'll just do the detailing.

Where'd you get my build plans???

 

[Drwinlied]

I take it your wife doesn't casually pass by and see your forum posts over your shoulder?

I'd like to think that TYF is a place where we can share our deepest, darkest, naughtiest secrets and dreams in confidence.

Haha nope. I've thrown many motorsports parts and ideas at her she is numb to it by now. Plus I was pretty clear at the start that we always have separate finances. We can have a joint account strictly for mutual purchase things (mortgage), but we won't ever have all of it together. That would be insanity. Now we get to be ignorant of each other's stupid purchases and be all the merrier for it haha