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  1. #1
    Veteran pajeff02's Avatar
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    Black & Blue
    '02 WS.6 / '07 Suburban

    K-member swap and upgrades

    It's finally time to start on the winter upgrades... despite the complete lack of anything "winter" happening in the northeast, so far. Lots of parts to swap out this time as I just placed a couple of more orders this morning. The list looks something like this:

    UMI Tubular K-member
    UMI Tubular Upper and Lower Control Arms
    Prothane Motor Mounts
    New GM Replacement Fender Liners
    R1 Concepts Premium Slotted Rotors
    Hawk HPS Brake Pads
    Russell Performance Braided Brake Lines
    B&M Deep Transmission Pan
    GM Oil Pan Gasket
    GM Oil Drain Plug

    If all goes well, I may add the Burkhart Chassis tubular front bumper support and longer wheel studs on the front to the list as well. I'd like to shed a few more pounds off the front end for the track. Also, after hearing how Chris broke a couple of front wheel studs last year at Numidia, the new studs would be more for future insurance than anything else.

    I started a couple of days ago by washing the car and rolling it into the lift bay. After removing the wheels, I photographed the areas that will be worked on just to note the location of the brake lines and wire harnesses. The stock K-member is a large piece of stamped and welded steel that takes up quite a bit of real estate under the front of the car. UMI's K-member is an absolute work of art and I am looking forward to a side-by-side comparison with the stock piece. I'll also be dropping both on the scale to see the difference, along with the control arms. The oil pan gasket turned out to be the source of a weep that I originally thought might be my rear main seal. While swapping the transmission last year, I found that the rear of the motor was bone dry and that it was actually the pan gasket leaking. I will need to fabricate a brace to hang the engine from in order to change out the gasket -- probably use a piece of rectangular steel tubing or something.












  2. #2
    None Shall Pass Knight's Avatar
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    Black
    99 WS.6 - Modified

    Subscribed!

  3. #3
    Veteran 35th-ANV-SS's Avatar
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    Red
    02 35th LE Camaro SS

    In!

  4. #4
    Spaz is My Mentor SMWS6TA's Avatar
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    Navy Blue Metallic
    98 T/A w/ mods, 00 FBVert

    Me too

  5. #5
    autoconnectionllc.com 02transamce's Avatar
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    Montgomery,Ala
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    2,435

    2007 Corvette
    Ebony

    Here we go!
    2007 Corvette...stock...

  6. #6
    Veteran pajeff02's Avatar
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    Black & Blue
    '02 WS.6 / '07 Suburban

    Ordered a set of Moog upper ball joints and poly tie rod boots from Advance Auto Parts. On-line orders through today had 15% off with a $50 coupon coming on my next order over $100. Not a bad deal.

  7. #7
    Senior Member cpop98ws6's Avatar
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    Black/Black
    98 WS6/04 Sierra Dmax

    I'm in! Looking foward to seeing the weight difference between the stock parts and the tubluar parts.

  8. #8
    11 years of bangin gears cammed goat's Avatar
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    Phantom Black Metallic
    2004 GTO M6

    I'm watching this one as well. Rectangular steel tubing with two heavy duty chains should help. I dunno if your engine has the same setup as mine with the one loop in the front and rear though.

  9. #9
    Senior Member tatertot91's Avatar
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    Sunset Orange Metalic
    2001 Camaro SS

    In this one, would like to see what you shed off

  10. #10
    Member pop6482's Avatar
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    Red/Black
    1989 Camaro IROC

    Wish I had a lift like that in my garage. It's not much fun trying to put a tranny in laying on your back in a puddle of fluid. UMI makes great stuff. Have fun with the swap!
    1989 IROC: 6.0 LQ4/T56, Torquer V2, PRC Stage 2.5 5.3L Heads, FAST 78mm TB, SPEC stg. 2, Stainless Works LT's, e-cutout, Magnaflow, Moser 12blt w/4.11's, BMR subframe connectors, strut tower brace, UMI lca's, panhard, torque arm

  11. #11
    Spaz is My Mentor SMWS6TA's Avatar
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    Navy Blue Metallic
    98 T/A w/ mods, 00 FBVert

    Jeff you figure out how you're going to support the motor up yet or are you going to drop the whole thing and use a engine lift?

  12. #12
    Veteran pajeff02's Avatar
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    '02 WS.6 / '07 Suburban

    That's my next step -- now that I have looked everything over and read through the installation instructions I am going to come up with a way to hang the engine. But for the fact of the oil pan gasket issue, I would simply support the engine on my transmission jack.

  13. #13
    Veteran pajeff02's Avatar
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    '02 WS.6 / '07 Suburban

    Kind of a late start today, but made some good progress on the tear down. I looked everything over one more time before beginning with the sway bar end links. Although it is not required, I elected to remove the sway bar as well to free up some working space under the car. The end links were unbolted and after removing them I then pulled the rubber splash guard and the metal bracket on the driver side that sandwiches the sway bar bushing bracket. The sway bar is hollow and weighs a lot less than what it would appear. The K-member is attached to the unibody by 6 large bolts, 3 on each side that run along the frame rail just inside the suspension. These will be unbolted right before the K-member is dropped -- so for now they stay put. I removed the cotter pins from the tie rod ends and also removed the wire harnesses for the ABS on each side while I was working in that area. The small cooler you see in the pic is for the power steering fluid. I previously removed the cooling unit from the upper radiator hose (as they have been known to fail) and installed this one in its place.














    Once the sway bar was dropped from the car, I began removing the brakes. I unscrewed the lines at the union with the rubber brake hose and then quickly plugged them off with a rubber vacuum cap. I also unbolted the brake line clamps and the brackets at the K-member. As I am removing everything, I simply unbolted the caliper brackets and pulled the brakes as an assembly. The rotors were then removed and set aside as they will be replaced with new pieces from R1 Concepts.














    I also knocked the wheel studs out of the axle flange as they will be replaced with 2-1/2" long aftermarket studs. I sharp blow with a large hammer is all that is needed to pop them loose. The replacement studs have larger splines and I will install them with stud and bearing mount style Loc-Tite. I backed the nuts off on each of the tie rods until they were flush with the stud. A sharp blow with a hammer popped them both free and does no damage. I do have the tools for removing them as well in the event they refuse to break free. The tie rod ends were then removed and angled up into the wheel well opening to keep them out of the way. I removed the cotter pins from the upper and lower ball joints and then loosened all of the nuts. With the upper ball joint nuts backed off, I then tapped the end of the stud with a hammer and popped them free as well. The spindle arms were then pulled free of the upper control arm and the shocks were unbolted. There is very little pressure on the suspension when it is at full drop so there is little danger -- unlike most other vehicles where you have to compress the spring to remove the suspention components.












  14. #14
    Veteran pajeff02's Avatar
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    I also unbolted the lower control arms, but it appears that the K-member has to be lowered to remove the rearmost bolts. Therefore, they were simply left hanging for now and I then moved on to the motor mounts. The front of the motor mount bolts are about impossible to get to. On the driver side the alternator is in the way and on the passenger side the AC compressor sits in front of it. Also, on the passenger side the starter blocks access to the nut, so it must be removed. Two 13mm bolts secure the starter in place and need to be removed. Also, the low oil level sensor harness needs to be unplugged to create room to drop the starter. Once free, the starter was then pulled out of the bellhousing and angled up to allow access to the wiring. The large 13mm nut on the left and smaller 8mm nut in the center must be removed to release the wires before the starter can be pulled out. Do not allow the starter to hang from the wire harness!

    Once the starter was removed, I tried a variety of extensions, swivels and sockets in an attempt to get at the engine mount bolts. Nothing seemed to work and I was contemplating the effort that would be required to remove the alternator and starter... but then decided to try my ratcheting 18mm wrench. Using a piece of pipe, I was able to get enough leverage to break the nuts both free and with the weight of the engine on the mounts, the bolts did not turn at all. Although it was slow going, the nuts eventually backed off enough that I could turn them by hand. This proved to be a good stopping point for the night as I now need to come up with a way to hang the engine in the bay.















  15. #15
    Veteran pajeff02's Avatar
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    I ordered up a set of Moser P/N 8255 wheel studs this morning. Summit now stocks them and with free shipping they were around $22.50. The studs are 2-1/2" long (about 1" longer than stock) and will match the wheel studs installed in my rear axle last year. With the stock wheels mounted to the car the black plastic lug caps can still be installed.

  16. #16
    ʢ ൧ ൨ ൩ ൪ ൫ ൬ ൭ ൮Ր Ց Ւ Փ Smittro's Avatar
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    2008 Hummer H3

    Looking good Jeff!

    What sway bar end links are your going with?

    I changed up to the Moog HD units they are much heavier than stock and come with harder link bushings.

  17. #17
    Veteran pajeff02's Avatar
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    I have the stock links with a set of poly bushings for right now.

  18. #18
    ʢ ൧ ൨ ൩ ൪ ൫ ൬ ൭ ൮Ր Ց Ւ Փ Smittro's Avatar
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    Quote Originally Posted by pajeff02 View Post
    I have the stock links with a set of poly bushings for right now.
    I see, well imho for the 9 bucks or so I'd get the Moog links and use them with your poly's.

    I easily broke all 4 stock links when I went to auto-x tires.

    I know you don't run that type of tire but I was really surprised how easily the stockers broke.

  19. #19
    Veteran pajeff02's Avatar
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    Good idea -- I'll see if I can get a set locally. Thanks!

  20. #20
    ʢ ൧ ൨ ൩ ൪ ൫ ൬ ൭ ൮Ր Ց Ւ Փ Smittro's Avatar
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    Quote Originally Posted by pajeff02 View Post
    Good idea -- I'll see if I can get a set locally. Thanks!
    Sure! I got mine through advanced auto, sorry I don't think I have the part numbers anymore.

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