The first instance of Truckin' is a jam (the 1:40 one) and the second time its the regular song with the vocals and all (the 9:54 one).
10/19/74 Set Two:
Uncle John's Band [8:34] Big Railroad Blues [4:25] The Race Is On [3:02] Tomorrow Is Forever [5:50] Mexicali Blues [3:17] Dire Wolf [4:16] Sugar Magnolia [5:47] > He's Gone [12:08] > Truckin' [1:40] > Caution Jam [4:25] > Drums [10:40] > Truckin' Jam [9:54] > Black Peter [9:47] Sunshine Daydream [2:52]
