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  1. C

    exhausting question

    thanks guys! thats what i was thinking to is it would make it too loud and make it obnoxious. looking at it i wouldnt even consider it a muffler. it is literally a giant pipe with 2 triangles welded on the inside with 2 holes drilled in the triangles. its also over half the size in length of the...
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    exhausting question

    hey guys, i have a question. i have a buddy of mine that has a blackwidow widowmaker "neighbor hater" muffler that hes giving me for free (he hears my yukon start and says it needs to be louder haha) my question is has anyone ran this muffler and if so how is the drone say at about 3k while...
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    upgrade questions

    ya ive been contemplating regearing for some time now but dont know if it would be "worth" it given the upgrades ive done on the ole yukon. i just worry about the 8.5in being "weak" but i guess im just over thinking it. weve used the yukon for 3 years now to tow the camper and it does just fine...
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    upgrade questions

    i was under the impression that the 4.10s would be too much if i daily drive it. my commute to work is about 10ish miles of up and down a mountain and about 7 miles of highway and the thing gets 11ish mpg as it is i didnt want to lose more lol i do tow a 26ft camper about 6-7 times a year so the...
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    upgrade questions

    i think 4.10s would be a bit much for daily driving around where i live. while towing would be awesome but i think the 3.73 would be the best. which i could definitely replace the gears in a 9.5in 14 bolt but didnt know if it would be worth the hassle or am i over thinking this and just...
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    upgrade questions

    ya its an xl. i figured the front diff is limited to the factory diff cause how its designed/mounted. im a capable of doing the gear swap on my own just didnt know if it would be easier or more beneficial to swap the entire diff out with something a bit bigger with the 3.73s already installed...
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    upgrade questions

    thinking of using these https://www.rigidaxle.com/products/2009-up-gm-8-25-8-6-front-rear-ring-and-pinion-gear-package-w-master-bearing-kits?_pos=1&_sid=e2c839ee8&_ss=r&variant=42339169239262
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    upgrade questions

    hey everyone, i have a question, im looking into doing some "upgrades" on the yukon (12 denali, stage 1 cam, tune). thinking of doing 3.73 gears but wondering if it would be possible to put 2500 differentials or what upgrades could be done to the factory diffs in the yukon? not looking to tow...
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    GM 6L80 Transmission Information Thread

    ok one more question, ive tossed up the idea of putting a fan on the cooler with a thermo switch to come on at 180 and off at 165 just to keep the temps down in traffic or give it some extra air flow. would this be a good idea or am i over thinking it? @NickTransmissions
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    GM 6L80 Transmission Information Thread

    hey quick question, i hope its in the right section, i have a 12 yukon denali (135k on the clock now, "new" jasper engine at 96k then again at 120kish then lifter/cam replacement, torque converter replaced at 96k with gm oe converter) afm delete, vvt delete, stage 1 cam, hp tune (adjusted the...
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    Let's Talk GMT900 DriveShafts !

    Where do you guys purchase your u-joints from?
  12. C

    2012 yukon denali hot idle engine tick/noise

    Well drove it around for the week before our trip and tuned the transmission and changed the oil everything looked great. We drove 400ish miles yesterday to go to the beach and we towed our 26ft camper down and it did great. The whole drive up and down hills the trans temp stayed 160-180 and...
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    2012 yukon denali hot idle engine tick/noise

    If I remember correctly they started doing the thermostat on the trans in 14. Mine doesn’t have that since it’s a 12. Before the tune/cam install, my trans temp stayed around 150-160. Idk if it has to do with the fact that the tune I got also tuned the TCM and changed things in the trans but I’m...
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    2012 yukon denali hot idle engine tick/noise

    hey guys. Quick observation, I’ve noticed that since the install/tune my transmission temps are higher then they used to be. Is this normal or should I be concerned? It was 85* degrees yesterday and just normal driving around it got to 190 it did t stay there but only dropped to like 180. I have...
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    2012 yukon denali hot idle engine tick/noise

    well guys i got the parts from jasper last week (the "new" lifters) i got them out of the box and they were noisy straight away. good thing i ordered my own parts. i got the cam, lifters, springs and push rods installed. put it all back together to find the tank end on my radiator had busted...
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    2012 yukon denali hot idle engine tick/noise

    Well I ordered the BTR stage 2 truck cam, Delphi lifters vvt delete it all showed up today. I started pulling it apart last night only thing left is pull the valve covers, rockers and heads. Then I can pull the cam out the front. Hopefully I like the cam enough to keep it lol
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    2012 yukon denali hot idle engine tick/noise

    Well I wish I would have seen this before I ordered it all lol oh well at this point lol
  18. C

    2012 yukon denali hot idle engine tick/noise

    I’m going to call hp tuners and see what they say. And I have an electric torque wrench that does angle (I’m a master Honda tech so I needed on) so the angle part isn’t a problem. I’m planning on ordering the parts today and starting on it this evening.
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    2012 yukon denali hot idle engine tick/noise

    honestly the only reason i want to do hptuners is i already have the tune interface so i dont have to buy that i just need the tune. i might go with the autocal from black bear but we will see what hp tuners says before i go that route. i think the BTR stage 2 truck cam is the cam that would be...
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    2012 yukon denali hot idle engine tick/noise

    ok so ive got it pieced together for the most part. got a btr stage 2 truck cam (https://www.michiganmotorsports.com/camshafts-brian-tooley-btr/brian-tooley-racing-btr-stage-2-truck-camshaft-kit-4-8-5-3-6-0-6-2-ls-ls1-lm7-lq4-lc9/) vvt delete kit...
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    2012 yukon denali hot idle engine tick/noise

    Well the good thing is it won’t take me that long to get it torn apart since I’ve had it apart before and I have another vehicle I can drive so I have 19 days to get it apart and replaced. So figured I could get it torn apart and order whatever I need and then have some time to drive it around...
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    2012 yukon denali hot idle engine tick/noise

    Ok. I will piece the exact “kit” this evening and go from there. I have a tsp stage 1 low lift truck cam in the cart on tsp’s website. This isn’t exactly what I want to be doing at the moment but I tow a camper and I have to take it to the beach in 3 weeks so I either do all of this before we...
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    2012 yukon denali hot idle engine tick/noise

    Here’s the kit that I was looking at. https://www.glennsautoperformance.com/products/gen-iv-truck-dod-delete-kit-w-texas-speed-tsp-truck-cam-kit
  24. C

    2012 yukon denali hot idle engine tick/noise

    ok so every cam "kit" ive looked at doesnt say anything about replacing the pushrods. given its all "stock" and the ls7 lifters are the same size, are the pushrods an issue? and id like to have some faith in this engine but given this is now the 2nd jasper engine, i dont know how much "faith" i...
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    2012 yukon denali hot idle engine tick/noise

    Also if I’m removing the lifters to “check” them I’m just going to replace them. No point in removing all of the stuff to just check them. And since I’m there figured now would be a good time to replace the cam and tune it.

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