It was on an old Harvard Lampoon Radio hour that Hunter S. Thompson is told by a spaced out hitchhiker that the Grateful Dead were performing on a barge in San Fransisco Bay and they were gonna cut it loose and play 'Truckin'' until they hit Hawaii. The same episode has a dead-a-like song about a biker. I haven't heard that for twenty-five years at least but it was pretty damn good.
I'm checking this out now ...It is agreed that the band’s longest uninterrupted performance of the song took place on December 6, 1973.
Love Phils feedback stuff.
Its a very out there version ...
And then right into Eyes !