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

[R3cord303]

Biggest problem is the bearing caps which deflect under extreme stress and cause the bearing to go. A girdle is a must-have imo for high hp applications. I have a TA Performance girdle on mine. It has load bolts that keep the bearing caps from deflecting.

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OOooooooo do you have a link or part number for that? I'd love to put one on mine.

Wynjammer. It was sort of experimental on my part as well as Al Martin's. lol

I still have it and was considering modding the bracket to fit the LS accessory bracket and throwing it on the Tahoe. I'd have to study the compressor map and the 5.3's airflow dynamics, but the rough idea is that I could get 6-7 psi out of it with the pulley intended for 10 psi on the 4.3. The FlexFuel injectors would easily support it so it'd be a cheap little kick. I almost wanna bolt it up just to hear it.

I was looking at one for mine before finally admitted to myself that if I was going to continue driving as much as I had been, that a bigger vehicle would be a good idea. A Focus had pulled out in front of me at an intersection, and to quote Eminem, by the skin on my teeth/hair on my nuts I avoided the accident (and of course the dash cam, while it was recording, the SD card was screwed up and i didn't have footage). I was also looking at the bigger injectors they have. That said, I love how much better the LS platform is than the Vortec platform, just from an architecture standpoint! 6 bolt mains! No more distributors! Plastic intake manifolds rather than metal! Intake air temps within 3 or 4 degrees of outside air instead of 20+ with the intake on the s10!

 

[Staggered 02]

I picked one up from B&M, polished it had it powder coated etc.. I've had it on the Crew Cab for well over 2 years now. Excellent product. I purchased and installed a Moser Cover on the SS. That's been on for over 4 years. Excellent product as well.

 

[Rocket Man]

I picked one up from B&M, polished it had it powder coated etc.. I've had it on the Crew Cab for well over 2 years now. Excellent product. I purchased and installed a Moser Cover on the SS. That's been on for over 4 years. Excellent product as well.

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I doubt either one will work on ours due to the panhard bar. I had to use the TA Performance low profile with a QA1 panhard bar which has a bend in it.

 

[Rocket Man]

OOooooooo do you have a link or part number for that? I'd love to put one on mine.

The TA low profile is the only one I’ve found that will work with a panhard bar.
http://taperformance.com/proddetail.asp?prod=TA_1807A
But you also need the QA1 5262 panhard which bends around the diff. for clearance.
https://www.amazon.com/QA1-5262-Pan...t=&hvlocphy=9032956&hvtargid=pla-693856670157

This combo fits but barely.

 

[Doubeleive]

The TA low profile is the only one I’ve found that will work with a panhard bar.
http://taperformance.com/proddetail.asp?prod=TA_1807A
But you also need the QA1 5262 panhard which bends around the diff. for clearance.
https://www.amazon.com/QA1-5262-Pan...t=&hvlocphy=9032956&hvtargid=pla-693856670157

This combo fits but barely.

ya there's like a 1/4" of space

 

[swathdiver]

That aint bad. Sticker on mine says max legal trailer weight is 10,000 with a load distributing hitch with a tounge weight of 1,000. Just gotta load it correctly, watch sway, be careful with wind, standard stuff. Gonna be a while before we buy one and honestly a 3/4 ton burb would be perfect

Like Tom said, that's your hitch capacity, not the truck's. I think yours would be 6,700 tow rating and a GCWR of 13,000 pounds.

 

[R3cord303]

Like Tom said, that's your hitch capacity, not the truck's. I think yours would be 6,700 tow rating and a GCWR of 13,000 pounds.

That’s lame. Why’s OE equipment showing two didferent numbers?

 

[swathdiver]

That’s lame. Why’s OE equipment showing two didferent numbers?

Lots of things have different maximum ratings. Our transmissions, wheels, axles, hitches, etc. Some items can handle more weight than others.

The numbers on the hitch are for it only. As installed, it can handle more weight than our vehicles are rated to tow for, which is good, wink wink!

 

[R3cord303]

Lots of things have different maximum ratings. Our transmissions, wheels, axles, hitches, etc. Some items can handle more weight than others.

The numbers on the hitch are for it only. As installed, it can handle more weight than our vehicles are rated to tow for, which is good, wink wink!

I 100% agree. Just seems silly as no other vehicle I hooked a trailer up to had a sticker out back like that.

 

[iamdub]

...That said, I love how much better the LS platform is than the Vortec platform, just from an architecture standpoint! 6 bolt mains! No more distributors! Plastic intake manifolds rather than metal! Intake air temps within 3 or 4 degrees of outside air instead of 20+ with the intake on the s10!

Don't forget about the upgradeable fuel system. I never could get the fueling right and melted a piston one night pulling an SRT-4. Swapped in an 8K-mile 4.3 and started collecting LS swap parts. There were a few developments that came out soon after that mishap- modified GM 4.3 marine manifold, modified Edelbrock 2114 manifold and slightly larger poppet nozzles for the spider injection.

 

[Staggered 02]

The TA low profile is the only one I’ve found that will work with a panhard bar.
http://taperformance.com/proddetail.asp?prod=TA_1807A
But you also need the QA1 5262 panhard which bends around the diff. for clearance.
https://www.amazon.com/QA1-5262-Pan...t=&hvlocphy=9032956&hvtargid=pla-693856670157

This combo fits but barely.

Yes, that is correct. I found out after the fact that Spohn Performance makes a panhard bar that has has that angle to clear for aftermarket diff covers. I may change them both out down at some point in the future. i haven't decided yet. None of my vehicles see severe conditions but it's nice to have.

 

[Ilikemtb999]

I need an adjustable panhard bar that’ll clear a nice diff cover....

 

[MajorJakkov]

well with the EPA recently hammering on tuners and PPEI giving up on the offroad/racing tunes, my autocal is probably not very useful for the L5P duramax. unfortunately, i'll probably end up keeping the stock DPF bulls***.

anyone interested in the BBP autocal? i posted a while back that i have some VLEDs 5000k LED low beams for a tahoe/burb/avi as well. didn't seem to find any takers

 

[R3cord303]

Don't forget about the upgradeable fuel system. I never could get the fueling right and melted a piston one night pulling an SRT-4. Swapped in an 8K-mile 4.3 and started collecting LS swap parts. There were a few developments that came out soon after that mishap- modified GM 4.3 marine manifold, modified Edelbrock 2114 manifold and slightly larger poppet nozzles for the spider injection.

Wynjammer actually sells bigger fuel spyders for the 5.7/4.3! Just have to have the stock replacement walboro fuel pump. Alternativly, you can micky mouse swap the marine intake. I’m not sure when they started selling the injector spyders. One thing I do know, is that swapping an ls is more cost effective than the marine intake.

Edit: re read your post and saw you already mentioned the marine intake and maybe the wynjammer injectors are the slightly larger ones you mentioned. I’m still waking up, sorry for any confusion

 

[Rocket Man]

Yes, that is correct. I found out after the fact that Spohn Performance makes a panhard bar that has has that angle to clear for aftermarket diff covers. I may change them both out down at some point in the future. i haven't decided yet. None of my vehicles see severe conditions but it's nice to have.

Spohn doesn’t make one with a bend, at least not that I know of, I looked believe me. They make an adjustable to center the wheels left to right but it’s straight. If you found a Spohn with a bend Id sure be interested to see it. Post it up.

I need an adjustable panhard bar that’ll clear a nice diff cover....

I looked, and looked some more. I had a Spohn adjustable but it didn’t have a bend and when I bought the TA Performance girdle there was no way it was going to fit so I sold it. I contacted Spohn and they didn’t have a solution.

 

[Doubeleive]

Spohn doesn’t make one with a bend, at least not that I know of, I looked believe me. They make an adjustable to center the wheels left to right but it’s straight. If you found a Spohn with a bend Id sure be interested to see it. Post it up.

I looked, and looked some more. I had a Spohn adjustable but it didn’t have a bend and when I bought the TA Performance girdle there was no way it was going to fit so I sold it. I contacted Spohn and they didn’t have a solution.

When I was looking for one I could have sworn I had seen a photo of a Spohn with a bend, then when I went to there website they didn't have one it seemed like maybe it was something they had sold at one time but took it down for whatever reason or I could have just been seeing things

 

[Rocket Man]

When I was looking for one I could have sworn I had seen a photo of a Spohn with a bend, then when I went to there website they didn't have one it seemed like maybe it was something they had sold at one time but took it down for whatever reason or I could have just been seeing things

I really looked at Spohn, I love their stuff. Even their custom stuff where they build it to your specs doesn’t offer anything with a bend. I emailed them and wasn’t impressed with their answer which basically wasn’t any help. The QA1 was the only one I was able to find. So I am curious if anyone else has found a different one, especially a Spohn. Someone needs to make an adjustable with a bend around the diff.

 

[R3cord303]

Does anybody do a Wattslink to replace the panhard bar? That way it doesn’t move at all laterally thru the suspension cycle?

 

[Sam Harris]

well with the EPA recently hammering on tuners and PPEI giving up on the offroad/racing tunes, my autocal is probably not very useful for the L5P duramax. unfortunately, i'll probably end up keeping the stock DPF bulls***.

anyone interested in the BBP autocal? i posted a while back that i have some VLEDs 5000k LED low beams for a tahoe/burb/avi as well. didn't seem to find any takers

I’m interested in your autocal

 

[iamdub]

Wynjammer actually sells bigger fuel spyders for the 5.7/4.3! Just have to have the stock replacement walboro fuel pump. Alternativly, you can micky mouse swap the marine intake. I’m not sure when they started selling the injector spyders. One thing I do know, is that swapping an ls is more cost effective than the marine intake.

Edit: re read your post and saw you already mentioned the marine intake and maybe the wynjammer injectors are the slightly larger ones you mentioned. I’m still waking up, sorry for any confusion

Yeah, the larger poppet injector spider didn't come out until years after I went through all my BS. And, yes, an LS swap is MUCH mo betta. When I was messing with it, the LS swap was still only for the ballsy ones with deep pockets. I hassled Scott Hamlin for the longest to help me with mine, even "under secrecy". After I got into supercharging, THEN he decided to start doing them for the public. Now, with plug-and-play harnesses, purpose-built headers and more info than you will ever need, there's no reason other than maybe sentimental to mess with the 'ol Vortec if you want that level of power and reliability.