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  1. Rayyy

    Leaking windshield fluid reservoir

    Realized the windshield fluid reservoir is leaking on my 2004 1500. I marked where it’s dripping from. Looks like the connection to the tank. Can I get away with just replacing the grommet?
  2. Rayyy

    Big brake retrofit for 2500 trucks?

    As I’m sure you’re all aware of the big brake swap possible to simply bolt on the larger rotors and 4 piston calipers from 2019-2021 Silverado onto 1999-2014 1500 trucks… But, I’m wondering if a similar upgrade exists for the 2500 trucks? I believe the 2019+ Silverado/Sierra 2500 trucks also...
  3. Rayyy

    Question about center bore sizes

    I bought a set of wheels from friend of a friend a while back, which he told me were “GM bolt pattern” 6 x 5.5 I installed them and they seemed to fit fine. Recently, I noticed my neighbor’s Dodge Ram truck… He has the same wheels… I realized the rims on my truck are from a Dodge Ram! The bolt...
  4. Rayyy

    Any muffler experts here? (Tone of Flowmaster 50 Big Block vs 70 Big Block II)

    As the title suggests, I’m wondering about the tone (not so much the loudness) of the Flowmaster 50 Big Block VS the 70 Big Block II I know that the Flowmaster loudness scale corresponds to the model number (lower number = louder) Yet, somehow the “quietest” Flowmaster (Big Block 50) has a...
  5. Rayyy

    Please help- P0455 Evap Emission

    2004 5.3L Vortec 4x4 So, I’m driving along, and get a warning ding and a message on the cluster that says “Tighten fuel cap” Once, I pull over… I check the fuel cap, it’s tight. I’ve driven 1/2 the tank, so if it were loose, I probably would have received this message sooner, no? Once, I...
  6. Rayyy

    Anyone running a Pro Charger on. 5.3 or 6.0?

    Wondering if anyone here has experience running a Pro Charger on a 5.3 or 6.0 Vortec? If so, what are your thoughts? What worth it? What is your MPG like?
  7. Rayyy

    Used engine flush, now rear main seal leaking.

    Wondering if someone can shed some light… I used a can of Liqui Moly engine flush before an oil change, the oil came out goopy and super black, so it seems like it did clean out gunk/sludge from the engine. However, now my rear main seal is dripping big time, and I’ve read disclaimers that...
  8. Rayyy

    Need help… Crank/no start + Really bad MPG

    2004 Vortec 5.3 4x4 It never, ever starts on first try. Cranks, but no start. However, starts right up on the second attempt every time. Also, truck seems slightly sluggish. It still pulls at WOT, just seemingly not at 100% power. MPG is a wopping 8.1MPG (confirmed by calculating manually...
  9. Rayyy

    Help with e-fan swap

    Wondering which harness plugs into which fan?? One fan has 5 blades, while the other has 7, but both plugs are the same. One harness plug has yellow wire and black wire, while the other has a green wire and a black wire. Which one goes to the 5 or 7 blade fan??
  10. Rayyy

    Possible to replace wheel studs without taking off calipers?

    I just finished replacing all four calipers and rotors, broke in the pads, and realized I wanted to replace the studs too ‍♂️ Is there a way to hammer them out and replace them without taking off the calipers/rotors?? Or do I have to take everything off again?
  11. Rayyy

    How unique are Key Fob frequencies?

    I'd like both my NBS trucks to be able to unlock/lock with the same key fob... Is this possible? Could I look up the serial number of when of the modules, and order it to match?
  12. Rayyy

    Anyone in the Bay Area with a HP Tuners cable?

    I’m just trying to activate the electric fan, so don’t want to buy the $400 interface cable. Wondering if anyone in the Bay has a cable we could use once I buy the HP Tuners credits?
  13. Rayyy

    Does anyone know a way to measure actual torsion level/lift??

    How do I know exactly how much I'm raising the front up from stock setting if the previous owner played with the torsion bars? Is there a way to measure certain suspension bits instead of simply measuring from the fender to the floor? Maybe between bump stops? If so, what is the stock spec...
  14. Rayyy

    Fluid recommendations differential / trans / transaxle ?

    I’ll be changing the fluids in the transmission, font/rear differential, transaxle/transfer case… and wondering which fluids the cool people are using? I’m thinking of using Amsoil: Front diff: Amsoil 80w-90 Severe Gear (2qts) Rear diff: Amsoil Sever Gear 75w-110 (3qts) Transaxle: Amsoil...
  15. Rayyy

    New style VS old style PCV?

    Apparently there is an old style PCV and a new style… Does anyone know which one is which? I think the one with the small hole is the old style… but, can someone confirm?
  16. Rayyy

    Anybody running Power Stop brake calipers?

    Reading some reviews on the Power Stop SP4918 brake calipers, which come "powder coated" red... Several people show photos suggesting that they are not powder coated at all, but rather merely painted... and flaking after a year's time. One individual showed a sticking caliper after one winter...
  17. Rayyy

    Are PPV brakes better?

    18R2246 OR 18R2246PV ? Do PPV brake calipers provide better stopping power? Same piston size? And I know PPV brake pads are different, but are they interchangeable with regular pads?
  18. Rayyy

    Early Gen Tahoe brake calipers VS Later Gen Tahoe brake calipers?

    Does anyone know the difference between NNBS brake calipers (part# 18FR2246) vs the NNBS brake calipers (part# 18FR2660)? The older 18FR2246 calipers only came on 2007-2008 NNBS trucks/suvs, but the newer 18FR2660 came on 2009-2013, and even up to 2019 on the Tahoe. I pretty sure these will...
  19. Rayyy

    Can I wire in dash cam from double power source?

    I’d like the dash cam to turn on automatically when I turn the key to ON, but would also like to be able to turn on the cam with the key out, using a rocker switched I installed. My question is: could I tap into two different fuse locations in the fuse block, and wire them in tandem to the same...
  20. Rayyy

    Which safe/stronger? Longer studs or hub adapters?

    I’d like to throw on some 12mm or 15mm wheel spacers, and was going to install some appropriately longer studs to retain the same amount of threading on the lug nuts… Is this safer/stronger than hub adapters? I just don’t want my wheels popping out too far, given that hub adapters come in much...
  21. Rayyy

    2019+ Silverado caliper substitute??

    Does anyone know the difference between the 2019+ calipers (part# 13536580 and 13536579) commonly talked about on this forum, and the ones recommended by Summit Racing as "similar substitute parts??" I'm in the process of sourcing all of the parts for the 2019+ Silverado big brake upgrade, and...
  22. Rayyy

    Stabilitrak retrofit?

    Wondering if anyone knows what it would take to retrofit Stabilitrak into an NBS truck? And also, given that Stabilitrak uses the brakes to do it's thing, would it be affected by upgrading the brakes to NNBS or T1 front calipers/rotors? Would it even be worth it? Has anyone been in a scenario...
  23. Rayyy

    Best way to achieve 4” lift?

    Or better question… How to achieve 4” front lift on NBS 4x4 with torsion bars? Torsion keys only go up to 3”, and seems the only lift spindles available out there are for 2WD only? The Bilstein 5100 options seem to only be designed for either 2”-2.5” front lift / 1” rear lift or 4” front lift...
  24. Rayyy

    Help with Bilstein 5100 and 2" lift

    I'd like to lift my NBS Yukon XL by 2"-2.5", and wondering if anyone can help answer a few questions... I will be installing Z71 springs (Moog 81069 rear), and initially considered the Rough Country 2" lift kit, which comes with 2" torsion keys (front) and 2" spacers (rear), along with longer...
  25. Rayyy

    T1 suspension on NBS?

    Does anyone now if the T1 springs will retrofit on NBS/NNBS models?

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