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300 Blackout

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About 300 Blackout

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  1. Yes. I have a 2014 Sierra and upgraded the projector along with installing HIDs.
  2. Yukon Axle Shafts Ordered

    It was made by Shaftmasters. imiller74 runs the same driveshaft. https://shaftmasters.com
  3. Yukon Axle Shafts Ordered

    I rarely drive my truck over 70mph and didn’t notice the shake with my 3.42 gears. After getting 4.56 gears, the shake was pretty obvious at 70mph. One of the most reputable shops in the area installed my gears and replaced all of my bearings with Timkens. They echoed all that has been said on this thread and notified me the original gears weren’t properly shimmed. They also said it’s a pretty common finding on our trucks. I upgraded to a 5” diameter, 0.125” thick aluminum driveshaft with the goal of increasing the critical speed rather than to address the shake. I also installed the Raybestos police rotors. After installing these components, the shake was nowhere to be found up to 85mph (hadn’t driven any faster). Two months ago, the truck’s frame was bent in a crash and replaced. Part of the frame replacement required all suspension components to be removed and reinstalled. Every single bolt was torqued to spec and marked with paint across the bolts. There is no shake up to 100mph and I won’t drive any faster (it should be noted that at that speed with 4.56 gears the driveshaft is spinning the equivalent RPM as a 3.42 gear driving at ~120mph). I’m running Cooper STT Pro 275/65R20. It’s a 34” diameter, wide-lug tire when new. The wheel/tire combo weighs 115lbs each. I wish I would have been more methodical in evaluating the results of each change I made to the vehicle to determine exactly which component solved the shake and at what speed. There may be a lot of merit to the theory that steel driveshafts would help eliminate the shake. In my case, the truck is performing great with an upgraded aluminum shaft.
  4. Gauge Pod

    I don’t have it. If you look at the right side of the gauge pod there’s a cutout where you have access to the hazard button. I’m looking for a dual version of this or to retrofit two gauges on the upper right and left corners of my instrument panel. I’m going with gauges from Speed Hut because I can build custom gauges that look very similar to the factory gauges in the instrument panel. Their wideband gauges are available for a variety of wideband sensor/processor combinations. I’m going with PLX for my wideband.
  5. Gauge Pod

    Steering column. Ive found that sometimes they don’t list our trucks as being compatible with the products when they are. This is one case where auto meter doesn’t list it as being compatible but Jegs does. Everything that I’ve found regarding gauge pods that is made for the 2500 can also be used in the 1500. https://www.jegs.com/i/Auto-Meter/105/15009/10002/-1?ymm=4294829560+4294829741+4294829282 I’m preparing to mount gauges also and have been doing a bit of reading. You can prime and paint the black pillar pod mount. If your interior is grey, the recommended paint is “SEM Color Coat Medium Grey.” I will be using the “SEM Sand Free Adhesion Promoter“ to prep the ABS plastic for paint on a triple pod pillar mount.
  6. What have you done to your K2 today?

    Nice! You’re gonna feel like you have a whole new truck with how it drives after the gears and now these.
  7. What have you done to your K2 today?

    Mine looked similar also. 70k and it was filthy with a bunch of metal.
  8. What have you done to your K2 today?

    Same way a head stud and nut can make it through a 10 ply tire. No pics, but it happened. Brutal
  9. What have you done to your K2 today?

    That’s what I have and it’s a completely different truck. Make sure you break them in properly just in case you didn’t know they need to be broken in. Once they are good to go, turn off traction control and do a straight line pull in 4x4 if you have it. It’ll probably make you laugh and say what everyone else who swaps gears says, “why didn’t I do this sooner.” Let us know what you think about it once they are installed.
  10. What have you done to your K2 today?

    Those look great! I’m not usually a fan of aftermarket tail lights but those are really nice.
  11. What have you done to your K2 today?

    Installed new front O2 sensors. I used my old sensor plug to lengthen the new passenger side sensor so it didn’t rest on my long tube headers. I also covered the wires with a heat resistant conduit and zip tied them out of the way. I’m pretty happy with the result.
  12. You are correct. I replaced my factory projectors in my 2014 Sierra with Morimoto projectors. Totally worth the effort of the install.
  13. L83 Engine Buzzing with Tick

    Now that I think about it, when I first bought the truck, it had a non-dexos 0W-20 in it. It burned a couple quarts in 1,000 miles so I changed it to dexos Gulftec 0W-20 and added a quart of Lucas oil stabilizer. It didn’t burn a drop of that over 9 months and 5,000 miles. Come last October and I switched to Valvoline Advanced MaxLife 0W-20. Great wear properties but it’s a volatile oil and I had to add a quart and a half over the last 2,500 miles. I found an old video from October when I heard a buzzing noise that I assumed was my transmission at the time. Perhaps it’s no coincidence the noise was first observed around the time of that oil change. This engine had a tough life in its first 65k. It spend its days in northern Canada and I’m sure all of the sub-zero cold starts took their toll on the tight tolerances of the engine. I’m gonna thicken it up tomorrow and see what happens.
  14. L83 Engine Buzzing with Tick

    Thanks for the info and pics. My truck was built late 2013 so it’s possible I have one of those early, noisy pumps. I don’t ever recall it being this loud though. And what confuses me is it isn’t always the same volume. Sometimes it’s loud and sometimes it’s barely noticeable. I haven’t been able to pinpoint under what conditions it’s loud and what triggers it to stay quiet. I just did an oil change after only 2,500 miles and cut apart the oil filter to examine it for any metal. I learned a couple things. Changing the oil didn’t do a thing for the noise. There wasn’t even the slightest trace of visible metal anywhere in the filter or filter media. Mobil M1-212a filters are of excellent construction and quality. I installed a Fram Ultra XG10575 after changing my oil just in case there was an off chance the Mobil filter was somehow vibrating and causing the noise. It wasn’t and the new filter made no difference in sound. Both the Fram Ultra and M1 filters are great and I’d have no problem running either of them. I’m gonna mess around with the viscosity a little and see if that has any impact. Nothing crazy, just thicken it up a little and see what happens. I’m not well researched on the validity of using a heavier weight as the engine gets more miles on it but it stands to reason that tolerances likely have opened up a little after 75k and perhaps a 30 weight would be a better match.
  15. GM Factory Catch Can

    Perfect! That’s exactly what I was looking to see. Thank you! Based on the location and shape of the canister, it seems it would stay quite warm, promoting evaporation of water and fuel while allowing mostly oil to return to the oil pan. I also wonder what the impact on oil life and performance are to have this returned to the pan. As long as the engine isn’t subjected to constant short trips and is run on the highway regularly, my guess is most of the fuel and water vapor will get burned off. Interesting.

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