Quote:
Originally Posted by MatthewKlein
The driveshaft spins at the same RPM for a given mile per hour. If the vibration is at 40mph under acceleration but not at 40 mph cruise the driveshaft balance doesn't sound like the problem.
It could be a u-joint that's binding under acceleration. Or it could be a misalignment when the pinion angle changes under acceleration. It has to be something that changes when you accelerate.
If a tire is out of balance it shakes at that speed under acceleration or cruise.
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Good points- thanks
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Will Rivera
'69 Firebird 400/461, 290+ E D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears
‘66 Lemans, 455, KRE D-Ports, TH350, 12 bolt 3.90 gears
'64 LeMans 400/461, #16 Heads, HR 230/236, TKO600, 9inch Rear, 3.89 gears (Traded)
'69 LeMans Vert, 350, #47 heads: Non-running project
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