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700r4  
swinter
New User | Posts: 5 | Joined: 12/07
Posted: 08/03/08
05:49 PM

I have slight vibration at highway speeds. When I changed to 700r4 from 350 trans, I moved cross member back accordingly, should I have dropped it some to eliminate vibration?  


 
55Guy
Enthusiast | Posts: 583 | Joined: 08/07
Posted: 08/05/08
12:21 PM

Sounds like maybe the driveshaft wasn't balanced properly for the conversion.

Where did you get the driveshaft?  


 
fatty77
New User | Posts: 36 | Joined: 03/08
Posted: 08/10/08
11:07 AM

It could be the drive shaft or you might want to double check your degree of angle on the motor. If it is carburated you should be at 3 degrees down towards the tranny. When you moved the crossmember back did you check this?  


 
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