Re: Any idea what could cause this???? 86 k5 vibrating
Might want to get a angle finder and measure your driveline angles. Do this on level ground. Mine had a similar problem and it turned out my pinion angle was way too low. I fixed mine when I did the shackle flip when I lifted it. You want equal and opposing angles.
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Rob Z.
1975 K5 350/465/205/D44/12b 4" lift on 35's- RIP
1991 K5 8.1L/NV4500/241/D44/14b FWC Camper
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