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Vibrations at speeds 75-110 mph

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  • #1

    Vibrations at speeds 75-110 mph

    Hey all, I've noticed after I got my 4.10's put in that the car seems to shake quite a bit only at speeds greater than 75 mph...

    a) Curious if this normal for these gears,

    b) Maybe I need an LS1 driveshaft .... I've heard of vibrations coming from the LT1 driveshafts, even a TSB on em...

    c) Maybe I just need new tires & balance (I do need new tires, I think I have the original 97 tires on here! lol (remember only 24,XXX miles)).

    Any clues? I know this has been addressed somewhat before, but no one has ever mentioned it after getting gears installed....
    1997 Trans Am WS6 Black M6
    370 RWHP / 352 TQ
    CC306 & Comp behives, LT1 Extreme Duty timing set, 1.6 RR's, CSR Elec Water Pump, Pacesetter LT's & ORY, GMMG w/ Ovals, K&N, Air Foil, TB Bypass, !AIR, !EGR, !CAGS, 160 deg thermo, LT4 KM, PCM tuning by Total-ReCal, March Pullies, Pro 5.0, 4.11 gears, LS1 alum DS, BMR strut tower brace, UMI SFC's, LCA's w/relo brackets & panhard
    Tags: None
  • #2
    get a aluminum d/s and have it reblanced
    2009 Honda Civic EX- the daily beater

    old toys - 1983 trans am, 1988 trans am, 1986 IROC-Z, 2002 Ram Off-Road, 1984 K10, 1988 Mustang GT, 2006 Silverado 2500HD

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    • #3
      its probably that new thing they put in cars tellin you, that you are speeding ???
      haha
      sorry had to put it i am bored as hell haha
      scott

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      • #4
        It's probably the driveshaft vibration just coming out because of the gears. Get an aluminum driveshaft. But for goodness sakes, replace those tires!!!!!! They are almost 10 years old now. Even if they're not causing the vibration (very well could be) rubber only lasts so long before it starts to break down. Wolfman can tell you all the dangers you face on 10 year old tires. Replace those suckers!!!
        Dave M
        Life, liberty, and the pursuit of all who threaten it!


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        • #5
          You guys know where the best place to buy an aluminum driveshaft is?
          1997 Trans Am WS6 Black M6
          370 RWHP / 352 TQ
          CC306 & Comp behives, LT1 Extreme Duty timing set, 1.6 RR's, CSR Elec Water Pump, Pacesetter LT's & ORY, GMMG w/ Ovals, K&N, Air Foil, TB Bypass, !AIR, !EGR, !CAGS, 160 deg thermo, LT4 KM, PCM tuning by Total-ReCal, March Pullies, Pro 5.0, 4.11 gears, LS1 alum DS, BMR strut tower brace, UMI SFC's, LCA's w/relo brackets & panhard

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          • #6
            Ebay has them fairly cheap.

            '95 TA A4, 118000 on the clock!
            Borla, Strange 3.73's, SLP CAI, Vortech elbow,AFS Z06 Wheels,White gauges/blue backlighting,blue custom interior,MBA Shift knob,MadZ28 Tune, Intrax springs, Bilstein shocks, ES Trans Mount, Honeycomb taillights.

            13.685@102.11

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