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PostPosted:Thu Apr 28, 2011 2:06 pm 
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Big Block

Joined:Sat Aug 23, 2008 11:47 pm
Posts:87
Car Details:1998 Camaro, V6 3.8, Auto, Red, T-Tops
Location:Scotland
Back at last, been some few months!!
Got tranny replaced and seemed to be ok.
But when driving it home noticed that the car starts vibrating when going over 65ish mph and gets worse the faster I go!
Just wondering if its anything to do with the new tranny?
I'm going to get a tyre replaced and get all the wheels rebalanced at the same time (with the weights inside the wheel, looks better) and see if that makes any difference.
Out of interest, drove the car at speed when it was doing the vibration, slipped the auto into neutral but still vibration.
I'll post back after wheels have been rebalanced.

Regards
DS


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Car starts vibrating at high speed

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PostPosted:Thu Apr 28, 2011 2:48 pm 
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Big Block

Joined:Mon Oct 05, 2009 10:00 pm
Posts:122
Car Details:tube framed 68 camaro
Location:WHITEHAVEN, CUMBRIA
you really dont wanna be sticking an auto box into neutral at speed !
as for the vibration, it's possible that if you turn the prop round 180 degrees, it will disapear........

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PostPosted:Thu Apr 28, 2011 3:00 pm 
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Big Block

Joined:Sat Aug 23, 2008 11:47 pm
Posts:87
Car Details:1998 Camaro, V6 3.8, Auto, Red, T-Tops
Location:Scotland
Quote:
you really dont wanna be sticking an auto box into neutral at speed !
as for the vibration, it's possible that if you turn the prop round 180 degrees, it will disapear........
Oh, jesus, read about the neutral thing on one of the other forums, some cr*p advice about!
Hopefully no damage was done!!
By 'prop', I assume you mean the driveshaft?

Regards
DS


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PostPosted:Thu Apr 28, 2011 11:33 pm 
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Big Block

Joined:Mon Oct 05, 2009 10:00 pm
Posts:122
Car Details:tube framed 68 camaro
Location:WHITEHAVEN, CUMBRIA
yeah, unbolt the drive/prop shaft from the diff, rotate it 180 degrees, try it again.

_________________
I KNOW WHERE YOU LIVE......

Image

I'M JUST TOO DAMNED TIRED TO BOTHER CHASING YOU !


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PostPosted:Fri Apr 29, 2011 8:17 am 
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Big Block

Joined:Sat Aug 23, 2008 11:47 pm
Posts:87
Car Details:1998 Camaro, V6 3.8, Auto, Red, T-Tops
Location:Scotland
Cheers for that biff, I'll post back how it goes :thumbup:

Regards
DS


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PostPosted:Sun May 01, 2011 2:17 pm 
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Big Block
User avatar

Joined:Thu Nov 05, 2009 1:58 pm
Posts:479
Car Details:'99 Z28 A4 Modified :D
Best ET: 12.0 @ 116 mph (0-60ft of 1.8 s)
Location:Leiden-Netherlands (car isnt though :( )
glad the box is in and the car is on the road

i also vote for drive shaft too if the wheels are all balanced up ok.

this is what mine does too but only after about 80 mph as I pulled out my drive shaft when i replaced the axle and didn't mark the orientation in the gearbox end

if a 180 turn doesn't help, you might have to slide drive shaft out of gearbox tail housing and try a 90 deg rotation. you may not cure the vibration fully as if you think abut it the gearbox will have worn in a particular direction in the other car and your drive shaft and axle worn in another way in your car so don't worry too much as long as its not bone shaking :O


oh... whats all this about not putting box in neutral at speed???

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'99 Z28 A4, 253 LS2 heads, 228R TSP cam, Patriol Dual Springs, Double roller timing chain, LS6 ported oil pump, OBX LTs, 3" True Duals, LS6 intake, 42lb/hr injectors, SLP lid + bellow, EFIlive COS 3 Speed Denisty Tune (self tuned), 3200 Circle D stall, CAI mod, KYB AGXs, Eibach Pro Front Springs, UMI panhard, LCA + Brackets, Strut Brace, Custom Subframe connectors, WS6 axle with 3.42s, 18" American Racing Rebels, US mirrors, 93 tail lights, 3.5 inch custom cowl hood. Mickey T's Street DRs on Vette-ZR1 wheels for the strip !
Best ET: 12.0 @ 116 mph (on a 0-60ft of 1.8 s)
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PostPosted:Thu May 05, 2011 2:02 pm 
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Big Block

Joined:Sat Aug 23, 2008 11:47 pm
Posts:87
Car Details:1998 Camaro, V6 3.8, Auto, Red, T-Tops
Location:Scotland
Cheers for the advice yet again :thumbup:
Had the tyres all balanced and all is ok now :clap:

"oh... whats all this about not putting box in neutral at speed???"
I assume doing this isn't actually a problem?

Kind Regards
David


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