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

[lowh07]

they have one for the 4l60E?

No, they don’t mess with those

Jake's Performance

jakesperformance.com

 

[SpareParts]

I run 275/65/18 tire which measures something like 32.9" in diameter, the number that I had to enter to adjust speedo was 31.2" and now its spot on accurate to the GPS values. So if you are wanting to adjust the speedo you can either calculate the percentage difference and subtract that from the current tire diameter registered or just enter the 31.2. I was off also by 2mph and I went from 30.5 to 31.2 and that did the trick. Hope this helps.

31.2 made the speedo register accurately enough verses GPS.

 

[Joseph Garcia]

Something else i have noticed and i can not pinpoint why.
For some reason Cracker now seems to drive extremely smooth after swapping the diff's. Hard to explain.
I did not have any bearing noise before the swap and the old universal joint was good.
Maybe running the same rpm range but with 4.10's the engine is not lugging like before the gear change?
I don't know but it is another +.

It is absolutely the 4.10 gears, combined with a more favorable RPM/torque range. Smooth is a good way to describe it.

 

[Charlie207]

95% finished the bumper. Still have some small things to do, and will probably be reinforcing the backside a bit in the future, but for now it's mounted.

I also want to add some fog lights, and am hoping to fab* up some brackets to allow me to reuse the factory fogs, but they have a goofy mounting system. I might just cut the entire section out of the plastic bumper, and bolt that to some welded-on tabs.

I also have a light bar that was wired into the rig when I bought it, and will fit almost perfectly after I cut out the MOVE logo.

* lol, not even close to being a fabricator

 

[SpareParts]

It looks pretty good to me.

 

[Charlie207]

It looks pretty good to me.

After getting a truck with the GT5 final drive, I'd almost rather have the 4.10s.

 

[SpareParts]

I thought GT5 is 4.10's

 

[Charlie207]

I thought GT5 is 4.10's

It is, don't you have 4.10s?

 

[SpareParts]

Yeah. For about a week now. It was GU6-3.42

 

[07burban88]

95% finished the bumper. Still have some small things to do, and will probably be reinforcing the backside a bit in the future, but for now it's mounted.

I also want to add some fog lights, and am hoping to fab* up some brackets to allow me to reuse the factory fogs, but they have a goofy mounting system. I might just cut the entire section out of the plastic bumper, and bolt that to some welded-on tabs.

I also have a light bar that was wired into the rig when I bought it, and will fit almost perfectly after I cut out the MOVE logo.

View attachment 482775



* lol, not even close to being a fabricator

if one wants said bumper for their 07 Suburban, could ya hook them up? there willing to pay. I'm asking for someone I know

 

[Charlie207]

if one wants said bumper for their 07 Suburban, could ya hook them up? there willing to pay. I'm asking for someone I know

Here is where I got mine (I filtered on a 2007 Suburban 1500, but there is a separate 2500 option as well... not sure what you have): https://www.movebumpers.com/collections/chevy-suburban-1500-2007-2014-products


There are less expensive kits that you weld together, and the Tahoe/Suburban look to have pre-fab options that are more expensive, but you only have to paint them.

 

[Charlie207]

Yeah. For about a week now. It was GU6-3.42

Yeah, I have the GU6 RPO for my Yukon, and the GT5 in my Silverado. They both have the same LY6 engine, and are roughly the same weight. I can definitely feel the difference in acceleration characteristics witht he 4.10s in the truck, and I'm probably going to hunt/peck for that upgrade in the future. I have 33" summer tires, and every little bit of mechanical advantage will help move me faster, and lessen drivetrain strain.

 

[Doubeleive]

new chrome trim piece that clips on the hood of the yukon, $36 on Amazon. By some coincidence it is the same exact part I put on it probably 6 years ago that I probably found on ebay. It's not worth paying $150 for a oem one they get chipped up eventually no matter who made it.
https://www.amazon.com/dp/B088HKW3BH?ref=fed_asin_title

 

[SpareParts]

Yeah, I have the GU6 RPO for my Yukon, and the GT5 in my Silverado. They both have the same LY6 engine, and are roughly the same weight. I can definitely feel the difference in acceleration characteristics witht he 4.10s in the truck, and I'm probably going to hunt/peck for that upgrade in the future. I have 33" summer tires, and every little bit of mechanical advantage will help move me faster, and lessen drivetrain strain.

Swap to 4.10's
So far i have not found a single regret and so far the best mod i have done to my Yukon
I can only imagine how much better it will be when i get back in the woods to have some 4 wheeling fun without the wife.

 

[Doubeleive]

Swap to 4.10's
So far i have not found a single regret and so far the best mod i have done to my Yukon
I can only imagine how much better it will be when i get back in the woods to have some 4 wheeling fun without the wife.

how fast does it go will it still hit 145>?

 

[SpareParts]

how fast does it go will it still hit 145>?
View attachment 482796

I don't know. Doubt it ever did 145mph. Think it tune governed to 106mph?
I'm never in that big a hurry and like to look around a little so i always leave early. At 100mph my eyes are glued to the road though.
Last time i went over 150mph was in a modified 92 Ford probe GT. Kinda miss that car.

 

[Doubeleive]

I don't know. Doubt it ever did 145mph. Think it tune governed to 106mph?
I'm never in that big a hurry and like to look around a little so i always leave early. At 100mph my eyes are glued to the road though.
Last time i went over 150mph was in a modified 92 Ford probe GT. Kinda miss that car.

i'm just givin ya a hard time lol. I have too many tickets I can't drive that fast all the time. I did want to see how fast it "could" go, still had a smidge more but ran up on a cop
who happened to be the only one on the road and surprisingly let me go without a ticket...

 

[Doubeleive]

4.10 with awd might not be too bad but if 2wd I'll just end up chirping the tires at every stop light or corner unless I'm careful

 

[SpareParts]

4.10 with awd might not be too bad but if 2wd I'll just end up chirping the tires at every stop light or corner unless I'm careful

I do plan on having a little fun. Effn motor mounts might get pricey though. Generally i do the playing in the dirt. Less stress on parts.

 

[Doubeleive]

I do plan on having a little fun. Effn motor mounts might get pricey though. Generally i do the playing in the dirt. Less stress on parts.

I put the hummer mounts on mine both sides broke and spilled the acid, there like triple the price now, in the past they have gone up/down like oil but last time I checked they were still like $247