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    Novice Looking for some advice on sub/amp combo.

    Need some advice from the audio guys here. I am adding the rear factory sub box to my 03YXL. I have a Kenwood amp KAC 5204, that is 4ohm Bridged (150w x 1), and can also produce 2ohm (75w x 2). I have a 8" DVC sub ( MB Quartz DS1-204) that according to the manual is wired either 8ohm (+/- jumper...
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    Yukon XL regear

    No comparing them at all, like I said, "all things being equal" If for his vehicle, it was a factory option for the higher gear ratio, and there is a posted increase in capacity then it should be an easy upgrade. I do believe with the "Max Trailering Package" option it tows somewhere around 8k...
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    Yukon XL regear

    If all things being equal if your truck, if you have the lower ratio (3.23) and you increase the ratio to (3.46), you would increase the towing capacity to the higher amount as it would have if it had come from the factory. You could go to an even higher ratio, but at the point you are limited...
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    Full Float Rear End?

    I dont think you will find a bolt in full floater axle. I have 2500 Yukon XL and it is a completely different chassis than the 1500 version. The 2500 has a leaf spring rear end, so you would have to fabricate brackets to make it work in a coil over application. I have the 6.0 version and those...
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    Need Help - with fuel sending unit

    That is an informative video. Definately helps to determine where the problem is. I have to imagine someone has experienced the same symptoms I have and how it was addressed. In other words, how do I go about troubleshooting the wiring harness or gauge cluster since it is determined it isn't the...
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    Need Help - with fuel sending unit

    Well, I was able to drop the tank this weekend and the sending unit tested out perfectly 41 ohns to 250 Ohms and contacts were good. SO now what? I have heard a ground? ALso that perhapss I need to clear the PCM or gaueg cluster??
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    Need Help - with fuel sending unit

    03 6.0 YXL 2500 - It is a long story, but I ll keep it short. After fueling my truck, the low fuel indicator light stayed on - while the gauge did not increase reading AND the info center now reads "--" and not indication of level "low" or tank level. Could it be a coincidence with the fill-up...
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    2001 8.1L Suburban Full straight pipe.

    I commented on Youtube.. but Ill ask here as well: I have an 03 6.0 2500 YXL, I was thinking of "reverting" to a single 1500 Y-Pipe since there are so few options for the crazy dual pipe setup on the 2500s. Do you have an update? I dont want something super loud, just a performance increase -...
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    What's That Whine?

    I had a similar issue, it was being caused by the rear seat entertainment control. I adjusted the plug into it and it worked. Try "persuading" it by bumping the rear hinge area of the console if you have RSE.
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    Anybody used Summit's new line of LS truck cams?

    I recently found out about Summit's LS truck cams. I have had good experience with their branded products in the past. https://www.summitracing.com/search/brand/summit-racing/product-line/summit-racing-pro-ls-vortec-truck-swap-camshafts
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    Whishh noise when shifting?

    I will have to try.
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    Whishh noise when shifting?

    I dont recall this noise from when I bought the truck, but there seems to be a whishhh noise when it shifts. I am trying to note exactly when it happens. It is most notable when i am cruising at lower speeds. If I am accelerating hard I dont notice - kind of happens when it is alternating...
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    4" tailpipe that fits Yukon XL 2500

    Following
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    Autoride shock lifespan?

    I was wondering what the lifespan of the autoride shocks is. I know how to tell on the rear "air-ride - leveling" shocks, but on the fronts? My Yuk is a 2500 so I actually have electronic shocks all the way around with no air. Traditional style shocks get bouncy, but I have heard the autoride...
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    Autoride or Bilstein 5100 shocks?

    How did you know it was time to replace? I have an 03 6.0 2500 with autoride. Right now I am at 165k Miles, but it seems to ride ok. It is definitely rougher than my old autoride Tahoe, but I cannot determine if it is because of the suspension or old autoride.
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    Question about Steering Wheel controls and OnStar system

    Easier to replace factory radio with bluetooth function. You will use the speakers, just not the Onstar Mic. BTW the Onstar mic is located next to your mirror console w/ a/c controls. It is NOT the round disc above the drivers seat. That is the ATC ambient temp sensor. My last Tahoe had it cut...
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    Billet T-connectors for heater cores

    THere are two fo these on the truck correct? Are they different part numbers or the same?
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    Flush or change trans fluid

    Hey, just wondering if you ever got around to the fluid change and how did you do it.
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    Flush or change trans fluid

    Damn, I Was thinking about my 2500. Yeah, definitely not that much fluid with the 4L60E, But they still hold a lot more than the pan does.
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    Flush or change trans fluid

    DUPLICATE
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    Flush or change trans fluid

    Yes, it is safe. You dont want to run out of fluid of course, but you arent going run it dry if you shut it down when you see some bubbles. If you have the 4L80E you do have a lot of fluid in there like I said it is somewhere around 14 qts or 3.5 Gallons. There is a lot more in there than what...
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    Flush or change trans fluid

    Pretty sure that is the pressure style - where the fluid is exchanged by an external pump. Usually those are ok for vehicles that are regularly maintained. Most transmissions in non fleet vehicles dont get changed as often as they should. You are going to hear a couple dozen methods of how to do...
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    Flush or change trans fluid

    If you decide to flush, Dont use the machine pressure feed style - let the pump do the work, so you dont force contaminate through the transmission, (At least that is the consensus). I used a 3/8 OD poly tube into the cooler return line and it fit perfectly. Was much easier than I thought it...
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    Catalytic Converter(s) Question

    Makes sense, Only indicating more that there might be a problems since the temps read differently from each other.
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    Ring & Pinion Pattern Second Opinion

    Current Pinion shim is .033 while the one on the oem gears is .020. The patterns are fairly rounded, and I think the appearance of closeness to the root is a lighting issue. I have been up and down with the pinion shims, and the patterns are fairly even (coast & drive). Once I go either way, the...

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