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Bed Bounce 2017 SR5 4x4

Discussion in '3rd Gen Tundras (2014+)' started by jswann01, Nov 1, 2019.

  1. Nov 1, 2019 at 8:34 AM
    #1
    jswann01

    jswann01 [OP] New Member

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    Put new bilstein 5100s on the front (top setting) to level and added 275/75 R18 KO2s. Since I have noticed a lot of what I'm calling bed bounce. Bumps seem to reverberate from impact to the suspension on the back of the truck. Anyone else have experience with this and know how to fix it? Truck didn't do it stock (at least not noticeably). Messed with the weight in the tires to lessen the impact but no change. It's significant. The truck turned into a tuning fork. Initially leveled and was 7/8" short on the left front. Put shims on the coil-overs and it sits level at all 4 corners. Didn't have the bounce until it was leveled at all 4 corners by the shims (2 x 1/4" plates). Thoughts?
     
  2. Nov 1, 2019 at 8:48 AM
    #2
    Basskrazee

    Basskrazee Pop

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    AFE mass air intake TRD rear anti sway bar Headwaters seat covers TRD Pro grill Bilstien 6112 coil overs Bilstien 5160 rear shocks Consol vault
    Go back to stock
     
  3. Nov 1, 2019 at 8:50 AM
    #3
    14CRWMX

    14CRWMX New Member

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    I would replace rear shocks as well
     
    Tundyfundy, Rica25 and jswann01 [OP] like this.
  4. Nov 1, 2019 at 8:51 AM
    #4
    COMiamiFan

    COMiamiFan Super Secret Elite Member #3

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    Search bar is your friend
     
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  5. Nov 1, 2019 at 8:57 AM
    #5
    belanger9

    belanger9 New Member

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    TRD Dual Exhaust, TRD Pro Grille, TRD Pro headlights, New Rims (AT tires to follow once the stock tires are worn out), Bilstein 5100's on the front raised 2", Aries running boards, diamondback tonneau cover, Black emblem overlays, Bed Liner on the chrome bumper corners, 32" LED Light Bar in the hood bulge and 30" in valence, Pop n' Lock tailgate lock
    5100's won't change how the bed bounces compared to the front. Mine had the bed bounce from day one, was very noticeable on concrete roads. I much rather have the bed bounce than the entire truck feel each one that much more.
    What tires did you change from? K02's being a tougher AT tire will be that much stiffer and have a rougher ride than any of our stock tires.
     
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  6. Nov 1, 2019 at 9:22 AM
    #6
    jswann01

    jswann01 [OP] New Member

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    Changed from the stock minivan tires (Michelins), new ones are 10-ply so expected the ride to change. Didn't expect it to bounce the way it does.
     
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  7. Nov 1, 2019 at 9:27 AM
    #7
    WNY PAT

    WNY PAT New Member

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    I put a 2/3 kit and tires on my 2017. It stiffened the ride up quite a bit. I also have a 2019 that’s a lease... which is completely stock. The 2019 is noticeably softer on bumps and much nicer to drive to be honest. The 2017 looks a lot better tho - sits about as high as a 3/4 ton GM HD truck. Trade offs I guess.
     
    Rica25 and jswann01 [OP] like this.
  8. Nov 1, 2019 at 9:34 AM
    #8
    TopShapeCabrio

    TopShapeCabrio New Member

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    I have no experience with aftermarket suspension & spacers but I know tires...your LT 10-ply tires are the problem....even when you decrease the PSI, they will still run ruff....my personal opinion: LT tires are good if you trailer something heavy on a daily basis (big enclosed trailer or big camper)....P275/75 R18 KO2 would have been more than adequate...definitively an upgrade to stock tires...
     
  9. Nov 1, 2019 at 12:24 PM
    #9
    LT75

    LT75 Seasoned Pro

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    I think it is just coincidence. KO2’s will not absorb the road like the other tires or Maybe your stock shackles seized. They are very prone to do that. Change them to poly bushings and see if it helps or get new shackles all together. They will improve the ride quality.
     
    jswann01 [OP] likes this.
  10. Nov 1, 2019 at 12:29 PM
    #10
    Black Wolf

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    Swap out the crappy OEM rear leaf bushings. Swap in poly bushings.
     
    jswann01 [OP] likes this.
  11. Nov 2, 2019 at 1:30 AM
    #11
    TopShapeCabrio

    TopShapeCabrio New Member

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    curious...what are OEM rear leaf bushings made of? Thx.
     
  12. Nov 2, 2019 at 4:21 AM
    #12
    Black Wolf

    Black Wolf AMAROQ, Inuit Stealthy Mythical Beast

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    The problem isn't so much what they're made of. The problem is they're press fitted. No play at all. That problem combined with the trapezoidal layout of the rear leafs contributes to the excessive bed bounce.
     
  13. Nov 2, 2019 at 4:25 AM
    #13
    TopShapeCabrio

    TopShapeCabrio New Member

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    Good to know ... which poly do you recommend? which poly did you install?
     
  14. Nov 2, 2019 at 4:28 AM
    #14
    Black Wolf

    Black Wolf AMAROQ, Inuit Stealthy Mythical Beast

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    Energy Suspension. Sold by Toytec and 4W Parts. Used them on my 07. Have a new set ready to go on my 14.
     
  15. Dec 2, 2019 at 11:42 PM
    #15
    Tundyfundy

    Tundyfundy Petunia The Tundra, and her sidekick Colbie

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    SUSPENSION: Bilstein 6112 coilover (1.9") w/ Powder Coated Springs and Spring Perch (TRD Red), JBA Upper Control Arms, Bilstein 5160's w/Billet Aluminium Reservoir Brackets, +3 Coachbuilder Shackles, Diff Drop Kit, Carrier Bearing Drop Kit, Brakeline Extensions, ABS Extension, Poly Bushings for Leafs, Coachbuilder Shims (2 Each Side), Coachbuilder Bumpstop Extensions, TRD Rear Sway Bar, TRD Front Sway Bar, Air Lift 5000 airbags w jounce bumpers. WHEELS AND TIRES: BF Goodrich KO2's 275/70/r18, BORA wheel spacers 1.25", TRD Wheel Caps,TRD Valve Stem Caps, Spare Tire Lock PERFORMANCE: Bullydog GT Tuner(Performance Tune), TRD Intake, TRD Dual Exhaust (with Modified Exhaust Hangers for Levelling Tail Pipe),TRD Brake Pads, TRD Oil Cap (US), TRD Radiator Cap, TRD Oil Filter, Optima Yellow Top Battery PROTECTION: PNP Engineering Type 4 Rock Sliders (With Full Dimple Plate) , TRD Skid Plate with ReadyLift Spacer Kit, Victory 4x4 LCA Skid Plates INTERIOR: Husky Liners X-Act (Front and Full Coverage Rear and Front Weather Beater Trans Hump), Interior LED Bulbs, WheelSkins Genuine Leather Steering Wheel Cover(EuroPerf), Clazzio Genuine Leather Seat Covers(BLK/DRK GRYwith custom stitching and embroidered headrests), Clazzio Seat Heaters (Front and Rear), Entune Startup Screen MOD, Entune Off Screen Mod, Tinted Windows with Windshield Visor, AJT Key Fobs,Eagle Claws Floor Mat Clips, Bodyglove Visor Organizer EXTERIOR: LED Brake Light Bulbs, LED Rear Turns, LED Reverse, LED Plate Lights, LED Cargo Lights, LED Third Brake Lights, LED Front Marker Lights, LED Fog Light Bulbs, Lamin-X Fog Light Covers (Yellow),2018 OEM LED Headlights, iHacker harness, VLED Universal Puddle Lights, VLED Interior Footwell Lighting (Front and Rear), NSV Lightbar, Painted Red Tow-hooks, Bed Rail System, Blind Spot Mirrors, Hitch-safe, Tailgate Lock, wheel Locks, Tail-gate lock. SOUND: Noico 80Mil Sound Deadening and Noico 170 Mil Thermal Insulation (All 4 Doors, Roof, Floors, and Rear Panel, Dash). Hertz Uno K170's Component Speakers (Front Doors with Upgraded Sail Panels)), Hertz Uno K170 Coaxial Speakers (Rear Doors), JBL C1-075ct Tweeters (Total 4) in Side Dash and Center Speaker, JBL Stadium 5 Amp w/Remote Bass Adjustment Knob and Amp Rack, 12" Infinity Reference Subwoofer in Custom Enclosure w/ “TUNDRA” Logo, Fast Rings Foam Speaker Rings System(4 Doors), Fix 86 DSP
    I also felt a more choppy bumpy ride with KO2’s. I went back to the shop and had them rebalance and Realign the truck and it rode smooth after that.
     
  16. Dec 3, 2019 at 9:41 AM
    #16
    cch2a

    cch2a New Member

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    I have a 2017 Crewmax 4x4 with 5100s all around. Front on middle setting with 275/70r18 KO2s. I felt like bed bounce decreased compared to stock. It definitely rides stiffer but I like it, was too floaty stock. Weird how the same truck and similar setups react differently.
     

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