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Comprehensive 5-lug 2nd gen lowering info.

Discussion in 'Street Trucks' started by ryanjboutin, Nov 4, 2012.

  1. ryanjboutin

    ryanjboutin [OP] Mob dirt parking lots.

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    5 lug base and X-Runner (XR), front suspension.

    -3" (base and XR) DJM upper/lower control arms.

    Fits all base and XR models.
    The lowest price I've found is $410 shipped from Tony (DJM Direct) on X-Runner Underground (XRU).
    They work by moving the all of the mounting points up 3" via replacing upper and lower control arms (UCA and LCA).
    You will need new ball joints or transfer your stock ball joints to this kit.

    [​IMG]

    I like the MOOG Problem Solver ball joints because they are greaseable.


    [​IMG]

    __________________________________________________ __________________________________________________

    Adjustable control arms.

    __________________________________________________ __________________________________________________

    -2.2" (base) or -1.7" (XR) XII coils

    These coils drop the base model 2.2". 1.7" from the coil and factor in .5" from the stock height XR coil.
    Remember these were designed to drop the XR, so you must account for the height different from stock XR coils to stock base model coils.
    They work by shortening the coil and increasing spring rate via replacing the stock coils.

    Pictured: old skool Sittin Sic 1" drop coils (850 ppi).

    [​IMG]

    __________________________________________________ __________________________________________________

    -0.5" (base) or 0" (XR) XR Bilstein struts.

    Stock for the XR, they drop the base model 0.5" and stiffen the front.

    [​IMG]

    __________________________________________________ __________________________________________________

    -1" (base and XR) Spindle drop spacer.

    Fits all base and XR models.
    The spacers can be made available from .5" to 1.5".
    Most commonly used are 1" drop spacers.
    Good luck finding them, I had mine made by Phil Dammit.
    They work by moving the spindle and UCA farther from the LCA by spacing the LCA and bottom of the spindle via the addition of aluminum spacers and longer bolts.

    [​IMG]

    Install between part 5 and part 18.

    [​IMG]

    __________________________________________________ __________________________________________________

    -2" (base) or 1.5" (XR) SOS drop kit from TundraRacing.com

    Will fit all base and XR models.
    Designed to drop the XR 1.5" then account for natural difference in spring height to get 2" for base models.
    Basically what you're getting is a lower spring spacer.

    [​IMG]

    [​IMG]

    Install between part 6 and part 9.

    [​IMG]

    __________________________________________________ __________________________________________________

    Sway Bars

    These XII Performance sway bars are thicker than stock and reduce body roll.
    Note: base models do not have a rear sway bar.

    __________________________________________________ __________________________________________________

    If you are using lowering springs and spindle spacers the top nut on the strut stem will not thread down and secure the strut to the tower.
    You will need to stack washers or fabricate spacers.

    Before:

    [​IMG]

    After:

    [​IMG]
    __________________________________________________ __________________________________________________

    __________________________________________________ __________________________________________________ __________________________________________________

    In the air: DJM arms, 1" drop coils, 1" spindle spacers, XR Bilstein struts; equalling 6" drop and camber maxed out at 3* of negative camber.

    [​IMG]

    On the ground:

    [​IMG]
     
    Last edited: Feb 5, 2014
  2. ryanjboutin

    ryanjboutin [OP] Mob dirt parking lots.

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    5 lug base and X-Runner (XR), rear suspension.

    -1" (base) or -0.5" (XR) leafs.

    Find a pair of 6 lug (PreRunner or 4x4) leafs and install.
    Because 5 luggers are spring under axle (SUA) we have a taller arch to the springs.
    Because 6 luggers are spring over axle (SOA) they have a shorter arch.
    XR leaf springs are the stiffest, then 6 lug, and lastly base model springs.

    Six lug leaf springs:

    [​IMG]

    __________________________________________________ __________________________________________________

    -2.75" (base) or -2.25" (XR) XII Performance composite monoleaf.

    Replaces leaf packs with a single leaf.

    __________________________________________________ __________________________________________________

    -2.5" (base) or -2" (XR) XII Performance steel leaf packs.

    Replaces leaf packs with less arched leafs.

    __________________________________________________ __________________________________________________

    -0.5" (base) or 0" (XR) Bilstein shocks.

    The taller one is the driver's side to accommodate the weight of the gas tank.
    This is why the infamous "Taco lean" is not overly prevalent on 2nd gens.

    [​IMG]

    __________________________________________________ __________________________________________________

    -1" to -4.5" drop blocks.

    Fits base and XR models.
    Available in a variety of height options.
    For blocks over 3" tall you want a tapered block to return the pinion closer to stock. Meaning the blocks correct the angle of the rear axle.
    Tapered steel blocks with grade 8 hardware and low profile bump stops are preferred from Streetacos.com.

    Pictured are Beefed Taco tapered blocks with offset pin and offset hole.

    [​IMG]

    __________________________________________________ __________________________________________________

    -0.5" Defined Engineering leaf shackles.

    Originally designed to allow droop for 6 lug off road suspension, they lower all 5 luggers and gives more droop.

    Pictured is a stock shackle (left) and a greaseable Defined shackle (right).
    [​IMG]

    __________________________________________________ __________________________________________________
    QA1 adjustable rear shocks.

    TS703 - 18 way adjustable shocks are desirable for any drop.
    I choose to order from Luis at Paradise Racing because they are the cheapest, give him a call.

    [​IMG]

    __________________________________________________ __________________________________________________

    Frame notches.

    Cut the frame and box it; add low profile bump stops if not already installed.
    Add plate to the outside of the frame for added piece of mind.
    This allows room for the axle to travel.
    Highly desirable, almost necessary, for drops over 3".

    Boxed:

    [​IMG]

    Extra plating:

    [​IMG]

    __________________________________________________ __________________________________________________

    X brace.

    Standard equipment on XR models.
    Can be added to base models with fabrication.
    This stiffens the rear suspension and is where the X-Runner name is derived.

    [​IMG]

    __________________________________________________ __________________________________________________

    Sway Bars

    These XII Performance sway bars are thicker than stock and reduce body roll.
    Note: base models do not have a rear sway bar.

    XII Performance adjustable rear sway bar.

    __________________________________________________ __________________________________________________ __________________________________________________

    In the air: Beefed 4.5" tapered/offset blocks, QA1 shocks, 6-lug leafs (minus overload).

    [​IMG]

    On the ground: you will rub the brace that connects the bedside to the bed. Remove the fender liner and bracket, then trim the tabs on the bedsides.
    Note: be careful when cutting the tabs as the sheet metal bedsides are thin.


    [​IMG]
     
  3. ryanjboutin

    ryanjboutin [OP] Mob dirt parking lots.

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    Frequently Asked Questions.

    What's that rotational metal on metal noise?

    Chances are it is the front of the drive shaft rubbing on the dust cap at the transmission output.
    This will correct itself over a few weeks of driving, or you can trim/remove the dust cap be removing the drive shaft.

    __________________________________________________ __________________________________________________

    Is there any rubbing?

    Yes.

    You will rub the rear beside brace.
    See next question for trimming solution.

    [​IMG]

    You will rub the e-brake lines between the cab and drive shaft, depending on how low your drop is.
    I have not found a way around this, yet.

    [​IMG]

    Base model drivers only:
    If you drop it and don't stiffen it, you will stuff and rub stock tires.
    DJM control arms and spindle spacers change the geometry of suspension, not the spring rate.
    Rule of thumb is if you add stiffer springs, you need stiffer struts.
    The base model struts do not like higher spring rate coils and are prone to premature failure when paired as such.


    __________________________________________________ __________________________________________________

    What will I have to trim?

    All you will have to trim are the bedsides.
    Remove the rear fender liner and the 4 bolts holding that bracket, and trim the bedside tabs.

    [​IMG]

    If you're low enough, you might hit the pumpkin on the bottom of the bed.
    Really what you're hitting is the bracket on top of the axle.
    Simply bend it backwards to the backside.

    Before:

    [​IMG]

    After:

    [​IMG]

    __________________________________________________ __________________________________________________

    Smells like burning.

    If you have your exhaust chopped off before the axle, and you don't have a turn down, your hot exhaust will start melting the brake lines. No bueno.
    Chop them off and relocate them to the rear of the axle.

    Note the relocated lines with blue tubing ziptied to them. I cut up a spare vent tube from my dirt bike because the shielding was melted before relocating.

    [​IMG]
     
  4. ryanjboutin

    ryanjboutin [OP] Mob dirt parking lots.

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    Vendor and website list.

    Mag Auto - A dealership in Virginia that sells parts at a wholesale price online. I have not found cheaper parts anywhere.

    Streetacos - aka Beefed Taco from San Diego. Brian is a stand up guy and will help you out. He is a vendor on TW and CT.

    Phil Dammit - Phil is kind of a clown and lives in Arizona. He'll get you those lower spindle spacers from a half inch up to 1.5 inches.

    XII Performance - Pronounced "Twelve Performance." The owners bought the remaining stock of Sittin Sic parts when Shane ended it. They are avid on X-Runner Underground (XRU).
    You can get upgraded suspension components here.​

    Tundra Racing - You can get that SOS drop kit and a drop kit for PreRunners here.

    Paradise Racing - Call and talk to Luis for a good price on QA1 rear shocks.
     
  5. ryanjboutin

    ryanjboutin [OP] Mob dirt parking lots.

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    Reserved 5.
     
  6. the.sight.picture

    the.sight.picture .45%er

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    flux capisitor, magnaflow muffler bearing, extra blinker fluid container. 6 inch wide stacks
    lol wtf dude^
     
  7. ryanjboutin

    ryanjboutin [OP] Mob dirt parking lots.

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    Welcome to the internet.
     
  8. the.sight.picture

    the.sight.picture .45%er

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    I have been on tw today for almost 14 hours on and off TODAY. Welcome to you
     
  9. ryanjboutin

    ryanjboutin [OP] Mob dirt parking lots.

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    There have only been 11.5 hours so far today, so...OYG.
     
  10. dually

    dually Low and slow

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    Not as many as the 98..
    Mods, please make sticky....
     
  11. ryanjboutin

    ryanjboutin [OP] Mob dirt parking lots.

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    It's in the works.

    Am I missing anything?

    Pretty sure I covered the bases.
     
  12. dually

    dually Low and slow

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    Not as many as the 98..
    No not really.. Possibly link 'how to's' or make your own!

    oh, just checked my itinerary i'll be there till the 10th, we'll have to grab a beer.
     
  13. ryanjboutin

    ryanjboutin [OP] Mob dirt parking lots.

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    I'm only unsure on where the SOS spacer goes.

    Such a craptastic idea. I can't find any pics online.
     
  14. dually

    dually Low and slow

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  15. dually

    dually Low and slow

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    Not as many as the 98..
    Looks as though they sit on the bottom perch.
     
  16. ryanjboutin

    ryanjboutin [OP] Mob dirt parking lots.

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  17. Kavik

    Kavik Kavik

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    This is awesome! I like seeing the options all in one place. Great work!
     
  18. weazleburger

    weazleburger Well-Known Member

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    excellent work ryan!
     
  19. 07TacoRidah

    07TacoRidah SHHHH, this is interesting

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    has anyone figured out the BPV issue yet? It's starting to bug me a little (feel stupid when I brake too, looks like I'm being all dramamtic with my stops :( ).
     
  20. Mr.Schertz

    Mr.Schertz Well-Known Member

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    tint,removed badges,custom letter chop and rephrase
    so if I want a minimal drop but a little added performance on handling go with bilstien shocks and struts for a .5 in drop?
     
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