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  1. #1

    Default BED HOP Gone After I switched the MUD TIRES out for ALL-Terrains? Anyone know why?

    I'm curious to why when i had my cooper stt's i had bed hop around 40-45mph and now since i installed the nitto terra grapplers same size 325/60/r18 there is no bed hop,lower road noise,smoother ride i know this is normal but the bed hop i don't get that? Anyone with answers would be much appreciated because i have no clue how that changed the difference. Also i don't rub in the front anymore either i can fully lock it without any rubbing which i love!

    2008 Chevy Silverado Ext. Cab Lt Z71 5.3 V8
    7.5 Inch Rough Country Suspension Lift
    RBP Replica Grille Black w Chrome Rivets
    Recon Smoked Cab Roof Lights
    N-Fab Powdercoated Gloss black Cab Length Nerf Steps
    5% Tint over 20% all the way around / 5% Eyebrow Strip
    AVS Smoked Window Visors
    Z71 Stickers Black & Metallic Silver
    Tow Mirrors / Smoked Turn Signals
    XM Satellite Radio Fin / Color Matched
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    Power Acoustic Tweeters
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    Smittybilt Bull Bar / Color Matched
    Custom Rolled Edge Exhaust Tips / Color Matched
    Custom 2.5 Inch Cat Back True Dual Exhaust
    Flowmaster Super 40 Series Dual in / Dual out
    Magnaflow Tru-X Pipe
    K&N Air Filter
    18x9 Rockstars Machined Black
    Center Caps / Color Matched
    33.13.50 Nitto Terra Grapplers
    New Front Wheel Well Liners
    Eagle Eye Black L.E.D. Tailights
    Eagle Eye Black L.E.D. Third Brake Light / Smoked
    Eagle Eye Black L.E.D. Halo Projector Headlights
    Notto HID Kit 10,000k Low beams
    Recon L.E.D. Light Bar
    Buschwacker OE Style Tailgate Cap
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  2. #2

    Default

    Maybe one of the coopers was out of round, maybe even more than one.
    :cool:

    2005 Chevy Silverado Z71 Crew Cab
    6" Skyjacker lift w/Edlebrock dual front remote resoviour shocks, single rear remote. Rancho skid-plate.
    17" x 9" M/T Classic Lock Wheels, 35" BFG A/T or M/T tires
    4.10 PercisionGears w/factory locker, T/A Performance rear-end cover
    Banks CAI intake, ported throttlebody, JBA coated headers, over-sized Magnaflow cats, Magnaflow cat back exhaust, Diablo tuned
    B&M aluminum deep transmission pan
    Warn brush guard w/Warn 9.5 XP winch, PIAA bulbs, Line-X bedliner, AWS Black tool chest, Extang tonneau cover
    Weather Tech floor mats
    Cover-Craft seat covers
    Dash mat cover
    Formula One window tint
    One black Lab in rear seat.
    :glasses:

  3. #3

    Default

    What do you mean by out of round? well idk what the deal was they had good tread left maybe 35% sold for $300 today but what are you saying they were uneven or somethin?

  4. #4
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    Enkeiavalanche's Avatar
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    Default

    Did you put the Oval tires on again????
    08 Z71 Avalanche Mods to date: K&N CAI,Hellwig Swaybars and End Links, Corsa Sport Exhaust, Superchips Programer,IPCW LOF & 3rd brake light and tails, AMI Gas door,Show Hooks and Door locks, Enkei Wheels, with Pirelli tires, StreetScene Bowties, Grant Steering wheel,Muth signal mirrors,SSBC Big Brake kit,Huskyliner Mug gards,Floor mats and Hood shield, McGard Lug nuts and locks, Bedrug, Cervini's Ram Air hood,35watt HID Fog lights, Sylvania bulbs all around ZXE's Highs and Lows, WhiteNight Back up lights,Sirius and HD Radio, SnugTop sitting on deck now Got a Softopper on now,Tempress Boat Hatches.... New Bilstein shocks are on... New Mods coming soon..... X

  5. #5

    Default

    I put some Nitto Terra Grapplers on 325/60/r18 i bought from a guy for $60 for a set ha.

  6. #6

    Default

    Were either of the rear wheels out of balance? When you bought the tires did they sit mounted in one spot for a long period of time? Those are just two things I could think of why a tire would give a vibration. Other than as asked before if they were out of round.

  7. #7
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    stephan's Avatar
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    Default

    Quote Originally Posted by Rockstarrchevy81 View Post
    What do you mean by out of round?
    This would be high or low spots on the tires that don't allow the tire to run smooth. Not all tires are perfectly round & some are worse than others. The worst cases need to be trued up. The tire/wheel assembly is mounted on a machine & the high spots are cut down even with the lows. And I agree with STB this was most likely an oor tire rather than a balance problem. Could also have been flat spots like Aloxydaddy is talking about.
    Last edited by stephan; 06-14-2011 at 01:17 AM.
    1988 Chevy C-3500 2wd (no pic)
    350 c.i. 5.7 L Stock Block, 4 Bolt Mains
    L-31 Vortec Heads, Edelbrock Cam & Intake,
    Holley 650, Flowtech Headers, Magnaflow exh.
    Jet Trans 700R4, B&M Ratchet, 4:10 gears,
    3" susp. lift kit "shadetree"
    No rev limiter, No speed limiter lol


  8. #8

    Default

    oh okay i agree then ha i know i would much rather have all-terrains on my truck now with it being lifted compared to a mud tire being that it made my truck shake, road noise, and the all around ride was a comfortable. I will probably buy a new set of Nitto Terra Grapplers 35 12.50 end of this year or next year.

  9. #9

    Default

    When you get around 33"-35" and above in tire height you have more of a chance to get a tire that is out of round, don't ask me why but we ran into this alot. We just sent the tire back to the distributor. Thats one reason I run BFG A/T's or M/T's, we had good luck with them. BFG has been making those tires in large sizes forever so I think they have them fiquired out on howto make them round and to last.

  10. #10

    Default

    Yeah i was actually looking at the BFG AT KO's my buddy has them on his truck and i've always like the way they look with the tread design but they are really exspensive compared to the Nitto Terra's which i am thinking about getting some brand new off of www.rimzoneonline.com for $912 which isn't bad for 35 12.50's and they have free shipping i havent found a site online that is cheaper than them do you know anywhere else that is cheaper and offers free shipping on tires?

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