Bad Vibrations! HELP!!!
Thread Starter
Joined: Feb 2001
Posts: 752
Likes: 19
From: Westminster, MD USA
Car: 91 Firebird 'vert, 91 Formula
Engine: 5.7, 5.0
Transmission: T56, T5
Axle/Gears: Auburn w/ 3.73's, 3.42
Bad Vibrations! HELP!!!
Okay, I have yet to figure this out. At 60mph I get a horrible vibration that doesn't go away as speed progresses. I've checked pinion angle, driveshaft balance, wheel/tire balance, lift bar adjustments, u-joints, etc. & it's still exactly the same. Any suggestions or ideas before I take it to a frame shop? The car was in an accident over the winter before I bought it, I had a shop install a new front crossmember & control arms (guy hit a steel construction road plate) but vibration is coming through the rear (feels like a bad u-joint). Plus my new Lakewood lift bars are cracking at the axle mounting brackets! Maybe related, I don't know but I'm at my wits end here! Thanks!
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'91 Z28 1LE; 355, Sportsman II heads, Edelbrock TPI w/ 58mm TB, Tremec TKO 5-speed, 3.73's & much, much more
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'91 Z28 1LE; 355, Sportsman II heads, Edelbrock TPI w/ 58mm TB, Tremec TKO 5-speed, 3.73's & much, much more
Junior Member
Joined: Mar 2001
Posts: 46
Likes: 0
From: northwood,staffordshire,England
Car: 83 berlinetta
Engine: 305
Transmission: th 700
HI I had a problem sounds like it could be same & belive it or not just balancing the rear wheels cured it. could be worth a try for small bucks. ifit works let me know.
Supreme Member
Joined: Nov 1999
Posts: 2,860
Likes: 3
From: NE
Car: 82 camaro SC
Engine: 350
Transmission: 700r4
Bent axle? If you have a grinding sound with that vibration it might be a bearing.
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82 camaro--original steering wheel, brake/gas pedals, seats--everything else modified
82camaro
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82 camaro--original steering wheel, brake/gas pedals, seats--everything else modified
82camaro
Thread Starter
Joined: Feb 2001
Posts: 752
Likes: 19
From: Westminster, MD USA
Car: 91 Firebird 'vert, 91 Formula
Engine: 5.7, 5.0
Transmission: T56, T5
Axle/Gears: Auburn w/ 3.73's, 3.42
Yo, wassabi! I'll give you a ring, I was thinking maybe I could throw your 2 rear wheels on just to see if it's still there...mine are balanced but you never know...4-3/4" cowl hood came the other day!
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'91 Z28 1LE; 355, Sportsman II heads, Edelbrock TPI w/ 58mm TB, Tremec TKO 5-speed, 3.73's & much, much more
------------------
'91 Z28 1LE; 355, Sportsman II heads, Edelbrock TPI w/ 58mm TB, Tremec TKO 5-speed, 3.73's & much, much more
Supreme Member
Joined: Jul 2000
Posts: 1,686
Likes: 0
From: Naperville, il usa
82 your sig is hillarious
oh and something to do with steel driveshafts above a certain speed also does it for ya,
im going new shaft and alignment.
gluck,
and 82, sure it is (pulls head back inside window)
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91 FireBird 305 V-8
no true mods,
ghetto rigged cold air intake,
"My G/f Once Wanted To Break Up Because Of Competition With The Car."
GheTTo Riggers INC.
We Make Mcgyver look Like Crap
oh and something to do with steel driveshafts above a certain speed also does it for ya,
im going new shaft and alignment.
gluck,
and 82, sure it is (pulls head back inside window)
------------------
91 FireBird 305 V-8
no true mods,
ghetto rigged cold air intake,
"My G/f Once Wanted To Break Up Because Of Competition With The Car."
GheTTo Riggers INC.
We Make Mcgyver look Like Crap
Thread Starter
Joined: Feb 2001
Posts: 752
Likes: 19
From: Westminster, MD USA
Car: 91 Firebird 'vert, 91 Formula
Engine: 5.7, 5.0
Transmission: T56, T5
Axle/Gears: Auburn w/ 3.73's, 3.42
Well, 82zm6 & I tore apart my rear this weekend hoping it was just bad wheel bearings but instead discovered a broken tooth on the ring gear. Definitely a vibration maker I'd think. Also discovered both mounting brackets on my Lakewood Lift bars were cracked....WTF is next!?!?
------------------
'91 Z28 1LE; 355, Sportsman II heads, Edelbrock TPI w/ 58mm TB, Tremec TKO 5-speed, 3.73's & much, much more
------------------
'91 Z28 1LE; 355, Sportsman II heads, Edelbrock TPI w/ 58mm TB, Tremec TKO 5-speed, 3.73's & much, much more
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