(How To) 99-02 Sierra To Denali Conversion

Discussion in 'Exterior' started by RedXray, Jun 11, 2013.

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  1. RedXray

    RedXray Dwell set @ 28º to 32º

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    Parts Required

    1 Denali Bumper Cover GM12479754
    1 Reinforcement Bar GM15060470
    1 Filler GM88937235
    10 Retainers (push pins) GM15149708
    7 Retainers (push pins) GM14093088
    1 Fog Lamp Left GM16531085
    1 Fog Lamp Right GM16516335
    6 Nuts (Fog Lamps) GM11609411

    I found everything on Amazon and e-Bay, LMC had the push pin retainers.
    I bought the bumper cover and grill used.

    Remove the plastic cover over radiator

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    Remove lower valance (2 bolts and push pins)
    Remove bumper cap (pull off or to save tabs squeeze with pliers from the inside)

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    Remove grill (One 10mm bolt - turn grill locks counterclockwise to release)

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    Pull Grill end clips out of fender

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    Remove the Two Upper Bumper Bolts 17mm socket (marked green in photo leave the red ones)

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    Remove both lower bolts 17mm socket

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    Now we have everything off except the two rubber fillers under the parking lamps. Go ahead and remove those. They are to long for the Denali parts.

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    Now place the Re-Bar on the frame horn brackets and use two of the original sierra bumper bolts in the upper re-bar. Start but do not tighten all the way yet.

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    Install two original sierra bumper bolts in the lower re-bar. Now you can line up and adjust the Re-Bar to the right or left. I used a tape measure to center, measuring off the front of each fender. Now tighten the 4 re-bar bolts.

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    Attach the original sierra outer bumper brackets on each side

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    You need to move both the lower grill retainer locks down to the next slot. Be careful not to damage the power steering cooler while removing the drivers side.

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    Pull the tape off the filler and line up the holes in the re-bar to the fillers slots... then stick down on top of the re-bar.

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    Carefully work the covers tabs over and on the other side of the re-bar repeat on each side at the wheel opening.

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    Test fit the grill and look at the lines between the cover and grill shell. If you are happy with the fit remove the grill and install all the push pins into the cover, replace the grill, headlights, corners, fogs and lower grill.

    You can see the wavy gap between the grill shell and the cover. This was a test fit without the filler. In the last shot you can see the perfect gap with the filler installed. Dam piece of foam was $89 but mine needed it.

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    It actually took me longer to post this "How To" than it did to do the conversion! lol

    Mine is still in prime, all smoothed and ready for the basecoat/clearcoat

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    Notes:

    I had an Issue with the left (drivers) side being a little low. Since there is no height adjustment... with the Re-Bar off, I took the (large) handle out of my floor jack, placed inside of the drivers side frame horn bracket and tweaked it up about 1/2 an inch. This was the key to getting the gap perfect. You will know if you need this adjustment when you test fit the grill... and the grill shell to bumper cover gap is off. This test must be done with the filler in place to see the actual finished/adjusted gap.

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    Last edited: Jun 11, 2013
    greencaravan likes this.
  2. NoStopN

    NoStopN Rusty Hinges, porn star

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    Awesome write-up. This may come in handy for the Sierra I plan to pick up today.
     
  3. GMCjj

    GMCjj GMFS Member

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    Nice, thanks for posting this I was gonna ask how easy it was to swap them over in your other thread. This will come in handy when I swap over the wifes bumper to mine.
     
  4. 1clean99

    1clean99 "God Damn Buick Regal"

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    sweet write up and truck looks good!

    i actually saw a yukon the other day that had a denali grill but still had the yukon bumper..looked ugly.
     
  5. LOCLRNC

    LOCLRNC GMFS Military Member

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    Jesus nice write up man, need finish picture of bumper painted
     
  6. Jrcengineering

    Jrcengineering GMFS Member

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    Awesome write up. I think its the first on doing this swap.
     
  7. RedXray

    RedXray Dwell set @ 28º to 32º

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    Thanks Guys!

    After fighting bugs shooting the base yesterday evening I woke up early this morning hoping for less bugs. I was able to get another coat of base on after scuffing the three critters out of the cover. Then I had just enough time to shoot the clear before the sun peeked out behind the trees (can't spray hot panels). Got about 20 min of sun bake before I moved the bumper cover in the A/C. Had one small bug down low near the bottom...off the crown. It should be undetectable after a cut & buff. I'll be shooting the clear on the mirrors this afternoon.

    ETA: I've been running on three hours of sleep as I'm not a morning person lol.

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  8. RedXray

    RedXray Dwell set @ 28º to 32º

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    Cut and buff... 1000 grit, 2000 grit, Meguiars M105, HD Polish with a Griot's Garage 6" Random Orbital (DA) Buffer

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    Test with the M105 and a Orange CCS Pad and HD Polish with a Gray CCS Pad. It cut the fresh (32 hour) SPI Universal Clear like butter. So this was the combo chosen. Usually a wool pad on a rotary buffer is the norm for buffing out the sanding scratches. The SPI Clear sanded so easy I decided to go with a less aggressive route, so the DA and foam pads were used.

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    Finished

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    Still need to cut & buff the mirrors.

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    Well I'll be done when I clean up this mess... tomorrow... the old mans tuckered out! Not really just enjoying a cold beer, the mess can wait.

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    Last edited: Jun 14, 2013
  9. saenz

    saenz A Proud Texan

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    i see the bug :crazy:

    looks good!
     
  10. RedXray

    RedXray Dwell set @ 28º to 32º

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    Thanks

    The bug's itsy bitse legs cut right out with the 1000. As I said earlier it would be undetectable :buffer:

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  11. Jrcengineering

    Jrcengineering GMFS Member

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    Looks great !
     
  12. niner

    niner Niner

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    I love how the front end look on our trucks, so I was not sure about this mod.
    Looks very nice Red!
     
  13. mcnasty jankinson

    mcnasty jankinson Banned From GMFS

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    Looks good red!
    Any plans on an HD hood?
     
  14. 02 Chevy

    02 Chevy White Power!!!

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    Looks great man! Love the way the billet grill looks in the bumper. How far away from Myrtle Beach are you? I need my back bumper painted :anitoof:
     
  15. tony_416

    tony_416 GMFS Member

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    What's the difference between 03 - 06 sierra? and. ..... Will bumper hit the ground on a 4 6 drop?
     
  16. tony_416

    tony_416 GMFS Member

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    Oh, and your ride looks Fucking TIGHT!!!!
     
  17. RedXray

    RedXray Dwell set @ 28º to 32º

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    Thanks Guys!

    Thanks Man! I just ordered the RST Tailgate Spoiler and I'm thinking more along the lines of the Goodmark Cowl induction hood. The HD would also be nice.

    174 mi

    I'm retired though :D

    Yes it is low enough to drag and hit parking stops. The welded on frame horn brackets are different on the 03-07 Sierras.

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  18. 05silvycrew

    05silvycrew GMFS Member

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    Looks absolutely amazing! I love the fact that 99% of people who see it one the street won't even consider that it didn't come that way from the factory. Very nicely done!
     
  19. Cook

    Cook Masshole

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    Amazing
     
  20. Jrcengineering

    Jrcengineering GMFS Member

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    Cant wait to see pics with the spoiler !
     

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