my 70 k10 is steering dangerously

[scottmitchellrose]

So... the front driveshaft spins slowly even when in 2 high. never goes away- not 'residual'. when the front is in the air and truck is in neutral i can lock the front right tire by engaging the spicer. cannot lock the tire on driver side when engaging spicer in same conditions. The steering pulls to the right often out of nowhere- like a 'ghost'. the ball joints seem good, and the leaf springs are good/ attached. Frame is good/ solid. Any ideas?