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  1. tx tahoe z71

    Best year for NNBS Tahoe?

    I picked up about 1-1.5 mpg in the city and highway from the tune. But the drivability is much improved, as well as low end and mid range power. And the 6 speed shifts much more predictably than before, it doesn't feel like it's searching for the right gear anymore.
  2. tx tahoe z71

    Best year for NNBS Tahoe?

    5 and a half years later... We ended up holding off on getting her a new car for a while, but picked up a black 2009 Tahoe LT 2wd 5.3 flex fuel for a song in June. Really nice and much improved over my 2003 Tahoe Z71 in terms of ride quality and cabin noise. Granted, I have a blower, cam and...
  3. tx tahoe z71

    Timken vs AC Delco

    Hubs typically go out pretty quickly. My hub started making a slight noise at the beginning of a 180 mile one way trip and was grinding really bad at my destination.
  4. tx tahoe z71

    Sound coming from Right Rear

    You open up the differential for a gear swap, limited slip swap or anything else?
  5. tx tahoe z71

    Sound coming from Right Rear

    You'll have to give more info than "a sound." Grinding, whining, thumping, squeak, rattle, etc. is it metallic? In a straight line, turning, both?
  6. tx tahoe z71

    Timken vs AC Delco

    Timken for hubs is the way to go
  7. tx tahoe z71

    New z71 owner from TEXAS!

    Welcome over. Clean Z28! Post up your swap when you do it.
  8. tx tahoe z71

    Tire suggestions for 2009 Tahoe Z71 4x2

    I prefer Michelins as well. Can't help you on the larger size though.
  9. tx tahoe z71

    What can I do with a 2003 Tahoe?

    Great tips from ezdaar above in post #14. On efans, I installed the 2005+ OEM fans and noticed NO seat of the pants difference NOR change in fuel economy. But I did notice my ac cools down much faster than it did prior, so I'm happy since we have 100*+ summers. So take my experience for...
  10. tx tahoe z71

    What can I do with a 2003 Tahoe?

    Shorty headers are a waste of money, people who have installed them said there is little to no difference. Money is better spent on a tune, intake, cam, diff, etc. Cat back is more for sound. The stock exhaust isn't hugely restrictive, especially at stock power levels. I'm still running my...
  11. tx tahoe z71

    Truck Has No Balls

    Bottom line, the 4L60E is a weak transmission and should never have been put in a 5-6,000lb. vehicle. GM's solution to give these weak transmissions some more life is torque management. Some last longer than others and put up with more abuse. I killed one 60E on stock power and another three...
  12. tx tahoe z71

    Truck Has No Balls

    Is that directed at me?
  13. tx tahoe z71

    Truck Has No Balls

    Torque management simply reduces engine timing, therefore reducing power, during upshifts to prolong the life of the transmission. It is not pulling power all of the time. With my first tuner, not Wheatley, he took it out completely and my transmission lasted 6 months before it started...
  14. tx tahoe z71

    What can I do with a 2003 Tahoe?

    Headers are ok, but they are loud IMHO. I hear a lot more valve train noise inside the cabin that I didn't before. And even with the big body 22" Magnaflow, it was wake up the neighborhood when I started it loud. Had to add a second 7" round muffler. I also lost 1.5 mpg by adding them, even...
  15. tx tahoe z71

    Drivers floor wet !!

    Same problem. Haven't solved my mystery leak either. In for ideas.
  16. tx tahoe z71

    07 Tahoe with ticking and oil leak

    Do you have AFM? If so, the ticking is likely a collapsed AFM lifter. Be prepared to spend ~$2,000 for that repair. They will likely try to upsell you on a new oil pump, which I would decline if you get the repair done soon before the oil gets contaminated with metal pieces. Use Wix 51522...
  17. tx tahoe z71

    centric front end

    Use Moog, it's better than oem if not the same. Get it from Rock Auto and take them the parts. They'll charge you $80 for an upper ball joint and you can get it for $45 from Rock Auto. Times 6-8 parts, it adds up. Don't know anything about Centric, unless it's the same Centric that makes brake...
  18. tx tahoe z71

    2012 LTZ Tahoe in need of brakes

    Centric rotors, check Rock Auto. You can get slotted if you want. Drilled are for looks IMHO. I use Hawk pads, but they are dusty.
  19. tx tahoe z71

    Loud deep exhaust for a 2003 tahoe?

    It's going to get MUCH louder after long tubes. Put the headers on first, then plan your exhaust. I added a second muffler, Magnaflow 7" round, after I put my headers on because it was so loud with just the 22" big body Magnaflow.
  20. tx tahoe z71

    Magnacharger 19 or 23 on E85 ?

    I'm running E85 on stock lines with no issues. Setup is Walbro 450 with Racetronix hotwire kit (previously oem flex fuel pump with Kenne Bell boost a pump, but upgraded and ditched the BAP after it killed a third oem pump). 75# fuel injector connection injectors custom built by Jon (contact...
  21. tx tahoe z71

    New poster lots of supercharger questions?

    Definitely spring for the custom Autocal tune over the canned tune. Go a step colder on spark plugs, I recommend NGK TR6 gapped at .035", changed every 15-20k miles. Skip the shorty headers
  22. tx tahoe z71

    Broken Motor Mounts

    I got the part for $90 on ebay, part number 15854941, same number for diver and passenger side. Check your application though, I heard they had two types of engine mounts. If you aren't doing it yourself, expect $400-800.
  23. tx tahoe z71

    2008 tahoe hybrid 218,000miles

    If it has active fuel management, those lifters are known points of failure. Had one lifter go bad on my wife's 2009 Tahoe with 178k miles, cost $2500 to replace. Replaced all the lifters on the drivers side while they were in there. BUT a passengers side AFM lifter could still fail at any...
  24. tx tahoe z71

    Broken Motor Mounts

    Just replaced the driver's side on my 2009 Tahoe 2wd. Took me about 3 hours, with 30 minutes spent trying to work the old mount out and fit the new one back in and another 30 minutes trying to get the bolt holes to line up between the engine and mount. Tips that worked for me: All bolts are...
  25. tx tahoe z71

    E85 fuel!

    E85 is all I use in my 2003 Tahoe. On my application, Magnacharger at 10psi, e85 is worth about 40rwhp due to the higher octane allowing for more timing safely as well as the cooling properties of it.

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