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    My 2003 Yukon build

    $1200 Don't know what it's rated at but at least 600hp since I told them I would be making that or less and they assured me it would hold up to that.
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    My 2003 Yukon build

    Got the new custom built driveshaft . New tail housing on the transmission installed, new pinion yoke on the diff and the new driveshaft is installed. Went with this one piece aluminum shaft. 0.125" wall thickness. Inland truck parts and service in Austin built it for me. Hopefully in a week...
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    My 2003 Yukon build

    Unfortunately I didn't record a video of that. He was slowly making his way up the revs, each run a bit more, then looking at the data on the laptop. This happened at 5400rpm , later on the full run will be to the redline at 7000rpm Here is a video of the damage underneath (no audio)
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    My 2003 Yukon build

    So the dyno day didn't go as planned. Driveshaft blew up on the dyno at about 5400 rpm and 96mph . It was quite the bang when it let go. It also took out the tail shaft housing. Now I'm going with a 2 piece shaft. My dyno guy told me he had never had one blow apart on the dyno, he said they...
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    My 2003 Yukon build

    With the Holley high rise intake and the lines and wiring behind it I can't even get my hand or fingers back there
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    My 2003 Yukon build

    I also installed an oil catch can while I had the intake off It separates the oil from the air and then reroutes the air back into the intake. At the bottom of the catch can is a drain After I had done the electric fan conversion I noticed the voltage being a little lower than I was...
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    My 2003 Yukon build

    Relocated the oil pressure sensor from the back of the engine to the side of the oil pan where the oil filter is. That way I don't have to remove the intake manifold if I have to change the sensor again. The 2 foot harness extension makes it a simple plug in deal
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    My 2003 Yukon build

    I know, but wasn't thinking about that at the time. I might replace the seat with a sport seat in the future. Something more side support and less weight
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    My 2003 Yukon build

    BTW I'm to big ( 6'6") to work under the dash. I was bitching and cussing the whole time , taking off the old brake pedal and booster and installing the new ones. :mad:
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    My 2003 Yukon build

    Some more work done lately. Eibach sway bars and did the hydro boost conversion. Hoping to finish it all up this weekend. A couple of more small things then, fluids
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    My 2003 Yukon build

    It's pricey, for sure. But good brakes are a safety item that can safe your life. Besides, the truck is paid for. I can get a new truck, make payments etc or put some money in this one and build it the way I like it . Plus, I like the look of that body style better than the newer ones.
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    My 2003 Yukon build

    Brake upgrade. Wilwood 16" big brake kit with 6 piston calipers. I also got the parts for the hydro boost conversion. Installing the brakes is pretty straight forward. They tell you to put Loctite 271 on the bolts, which would have been nice to include in the kit, since it's something needed. No...
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    My 2003 Yukon build

    Just a small update. I changed the exhaust tubing and muffler setup. At first I ran it like I had it before the build, with the Flowmaster muffler and 3" downturn after the muffler. But Honestly that was to loud for a daily driver. The headers and no cats really made that thing loud. Now I run...
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    My 2003 Yukon build

    There will be a dyno video and graph. The MAF is stock, or are you talking about the throttle body?
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    My 2003 Yukon build

    Your truck sounds great. I haven't decided yet whether or not I am going to change my exhaust setup or not. I decide that once I drive it for a while and how I like or dislike the sound, especially inside the truck
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    My 2003 Yukon build

    Don't know the power at the wheels yet, that comes when we dyno tune it. The exhaust is Speed Engineering long tube headers and a Flowmaster muffler with a down turn exit
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    My 2003 Yukon build

    Today I was able to finish the last bits of the install and fire it up for the first time. Love how it sounds. Next is let it run longer and drive it around for a bit to make sure the transmission shifts and the rear end gets settled in, then dyno tuning time Short clip of it running
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    My 2003 Yukon build

    I also got the electric fans and harness kit. Most of the work is now done. What's left is making some fuel lines to put the fuel pressure regulator in line and mount it somewhere convenient. And the vacuum lines and wire harness from the old intake need to be made look pretty and re routed a...
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    My 2003 Yukon build

    So the engine in my '03 Yukon XL decided to crap out on me last summer and I have been gathering parts and building it up since then. The whole process was pro longed due to the pandemic and parts being on back order etc At first I just wanted to put a rebuilt LQ4 in it that I had sitting in my...
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    Empty the tank with fuel pump

    The whole point of it is to not do that but use the fuel pump to do it. The fuel lines are disconnected, no engine in the engine bay.
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    Empty the tank with fuel pump

    2003 Yukon. Engine and transmission are out of the truck. I need to empty the fuel tank and want to use the fuel pump to do that. is there a fuse in the fuse box for the fuel pump , where I can put 12v to it and just run the pump and drain the tank with it?
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    00-06 4-5/5-6 Drop kit

    ok. i was just wondering
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    00-06 4-5/5-6 Drop kit

    How can you lower a tahoe/yukon that much in the back and still have any usable suspension travel? It looks like there is only about 6+inches between the axle and the frame on a stock truck, so by lowering the truck that much, you are almost axle on frame. I'm going to bag mine, so I'm not...

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