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  1. skyhighsami

    06 GMC Yukon 4 12s ported with 4k+ RMS or 6 12s ported with 7k+RMS

    From the 2nd row buckets back I know 4 12s in a ported box will fit with no issues. The sub manufacturer suggested about 1.3-1.5 cubic feet per sub ported. So with 4 I would be looking at around a 6 cube box and with 6 about a 9 cube box. If I wanted to keep the box under the window line, make...
  2. skyhighsami

    2006 GMC Yukon rear brake caliper

    I have a 14" Brembo GT kit I think. It's a set of 4 piston calipers with 2 piece rotors and SS brake lines. I still have the stock rear disc and calipers but I would like to upgrade them as well. I would like to upgrade just the rear calipers and I found that the Cobalt SS front rotors are...
  3. skyhighsami

    Camber issue with 06 Yukon with drop spindles and Viking coilovers

    My 2006 Yukon is lowered with drop spindles, Viking DA coilovers, 5305 rear coils, DJM rear hardware kit, adjustable panhard bar, and helper bags. I have 275/40/20s front tires and 315/35/20s on widened declad 6 spoke GMC wheels. They are 28" tall and the coilovers are adjusted to about where...
  4. skyhighsami

    LQ9, BBK, Viking coilover, lowered 2006 Yukon

    I am considering selling my 2006 Yukon. It's lowered with spindles, Viking DA coilovers with torsion bar delete, DJM rear hardware kit, Belltech 5305 coils, Belltech shocks, Helper bags, and adjustable panhard bar. Brembo BBK, 20" declad wheels with the rears widened and 275/40/20 front...
  5. skyhighsami

    Worth it to go from 3.73 to 4.11

    I am swapping a LQ9 in my Yukon with worked 243 heads and ported Fast 102 with headers and BTR Stage 3 truck cam. I have a Yank SS3600 converter and 4.11 gears and Auburn diff. My question is will the SS3600 too much converter for the Yukon or should I send it back to Yank to have the stall...
  6. skyhighsami

    S10 body bushings

    Does anyone have any feedback on S10 body mounts on their full-size SUV? Is going with rubber or poly better and how so? Does anyone have any before and after photos? Is the swap really noticeable? My truck is lowered with Viking coilovers and spindles with DJM hardware kit and Belltech 5305...
  7. skyhighsami

    06 Yukon is still in the air and I can't wait to get it down

    My Yukon is lowered with spindles and Viking coilovers in the front. Belltech 5305 5" drop coils and Air Lift bags. Brembo front brakes with bigger rotors. I haven't decided what I'm doing with the back yet but when they get done today I'll drive it like this until I get my Trailblazer back and...
  8. skyhighsami

    Question on the rear cargo sub enclosure

    I have been doing a great deal of reading on this and building an enclosure on the left side. Is the right side a mirror of the left side? My installer made an enclosure with the 13TW5 in the back if my wife's 04 Yukon XL. Could an enclosure be made on the left side but inside of sitting behind...
  9. skyhighsami

    Swapping body mounts for S10 mounts

    This is something I heard about a long time ago and I keep seriously considering doing it but have never pulled the trigger. Well in the next couple of weeks all of the drivetrain will be removed from my Yukon so now is as good of a time as any. I was going to order the 12 S10 metal cups, 12 S10...
  10. skyhighsami

    Freshing up front suspension

    I have a 2006 GMC Yukon with 237k miles on it now. As soon as I get my Trailblazer back I am making TONS of changes to my Yukon. My question is it feels loose and wonders on the road and also suffers bump steer. It is lowered with adjusted torsion bars and has some temporary Titan 18" wheels...
  11. skyhighsami

    06 Yukon considering 03-06 Sierra front end

    I am making some changes to my Yukon. Caddy D pillars, roll pan, rear wiper and roof rack shaved. The truck is lowered with 8" and 11" wide 20s with big brakes and a built motor transmission and rear end. I'm stuck on the front end. I don't want to do a Denali clip because it's too luxury for...
  12. skyhighsami

    Finally going to try and run some low 13s

    I have had several GMT800 SUVs but I've never been able to keep them long enough to do what I've always wanted, make a performance oriented fullsize SUV. Finally the time has come with my current one. I ordered Tony's lowering kit and it's about 4.5"-5" with new shocks and adjustable panhard...
  13. skyhighsami

    I've seen some Yukon with Sierra front clips

    I know the Yukon and Sierra shared the same front end for a while. But there were a couple years where some parts were changed and I can't remember those years. Please let me know because I like that Sierra clip.
  14. skyhighsami

    2006 GMC Yukon 5.3 to LY6 swap question

    Long story short air have some nice spare parts from 2 other builds. I have this LY6 that I wasn't sure what to do with. If I got the Lingenfelter 24 to 58 conversation box and dropped the LY6 in with a healthy cam, the 1 3/4 headers merged to the 4" exhaust I have. The Yank SS3600 stall, built...
  15. skyhighsami

    Hopefully will get a fullsize TBSS or GMT800 Tahoe RST built

    I have always wanted a Tahoe/Yukon to perform as good as a stock Trailblazer SS or better. Then GM introduced the Tahoe RST but I have always loved the GMT800 body style. I have gotten close improving everything but the power before selling it. Now with my 06 Yukon I am in the process of...
  16. skyhighsami

    It's been awhile since I posted. Wheels, brakes, suspension drop

    I have an 06 Yukon with spindles, keys, DJM hardware and 5305 coils and airbags going into day. I had 24s and hated them. I'm looking for wheels big enough to clear the GMT900 brakes with a tire around 31.5-32" I also really don't want some sumo wrestlers for wheels. I have True Forged on my...
  17. skyhighsami

    I have a suspension, wheel, and brake question

    My 2006 Yukon is lowered with keys and spindles up front. The DJM 5305 rear springs and hardware kit. No helper bags have been installed yet. However my sway bar endline is broken causing the sway bar to hit the exhaust. I am in the process of finding 22-24" wheels and run a 31.5-32" OD tire. I...
  18. skyhighsami

    2019 Tahoe/Yukon brakes on GMT800 SUV

    I saw someone made a post of swapping 2019 Tahoe brakes on their GMT800. They have 4 piston calipers and larger rotors but I can't find that thread so I know what to get.
  19. skyhighsami

    Lowered Yukon bump steer with 24s

    Are people running steering stabilizers on lowered GMT800 with big wheels? I'm lowered with 4"-5".on 24x10 wheels with 305/35/24 tires. I didn't know if the steering stabilizers helped and were worth the money
  20. skyhighsami

    Best brake upgrades

    My Yukon needs brakes bad. I'm seriously considering C6 Z06/GRANDSPORT calipers and 2 piece 15" front rotors and 14" rears but 22" wheels are required I believe. I've also seen GMT900 components used as an upgrade. If Brembo calipers from 5th and 6th Gen Camaro is possible please share all the...
  21. skyhighsami

    06 Yukon 5.3 to LQ9 swap

    Swapping the tired 5.3 for a LQ9 I'll have freshened. Swapping the 317 heads out for 243s and s Fast 102 truck I'll likely have port matched or optimized together. So I increase the compression more than a 243 equipped LQ9? Exhaust will be 1 3/4" primary long tubes with 3" piping off the...
  22. skyhighsami

    06 Yukon dropped spindles, shocks, 5305, adjustable Panhard bar, shocks...what's next

    I still have air bags to install in the rear coils but haven't gotten to it yet. I have 305/40/24 tires that I'd like to go shorter and maybe a little more narrow. I have a Trailblazer SS and would like to do what I can with either swap bars and upgraded bushings to sharpen the handling as much...
  23. skyhighsami

    Want to buy F&R BBK, upgraded sway bars, and Esky D pillars

    I am looking to upgrade my brakes without breaking the bzck both front and rear. Sway bars since my truck is lowered 5" already, I'd like to improve handling. Finally I would like the smooth Escalade D pillars for my 2006 GMC Yukon. Color doesn't matter since I will respray it. Thanks Skyhighsami
  24. skyhighsami

    Braking upgrade for 06 Yukon

    This is my 2nd 06 Yukon. My first was lowered on 22s with 14" rotors and 3 piston SSBC calipers. This time around I am 4.5" and 5" lower with 24x10 and 305/40/24. I was curious if the Tahoe RST, Camaro, Corvette, any other vehicles with performance oriented brakes
  25. skyhighsami

    I thought I would share my performance 06 Yukon build

    My DD a 2006 GMC Yukon has a 217k mile 5.3. I have an iron LY6 iron block, good crank, LS2 rods and pistons left over from my LS2 in my Trailblazer SS, 243 casting heads milled to bring me to 11.3-11.5 CR, 1 3/4" headers, 3.5" exhaust left over my Duramax with a Borla muffler SI/SO, Yank SS3600...

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