Just to be sure, I just now played to Townes' 'White Freight Liner Blues' from his 'The 
Session' album (which is awesome w/fiddle n banjo n bass n piano!) This is how I learned it:

F
I'm goin' out on the highway
                         C7
listen to them big trucks whine
 F
I'm goin out on the highway
                         C7
listen to them big trucks whine
G
Ah, white freight liner
          F             C
won't you steal away my mind

Well, New Mexico ain't bad, Lord
and people here they treat you kind
Ah, New Mexico ain't bad, Lord
and people here they treat you kind
Ah, white freight liner
won't you steal away my mind



Well, it's bad news from Houston
half my friends are dying
Well, it's bad news from Houston
half my friends are dying
White freight liner
won't you steal away my mind

Lordy Lord, I'm gonna ramble
till I get back to where I came
Oh, Lord, I'm gonna ramble
till I get back to where I came
That white freight liner's
gonna haul away my brain

I'm goin' out on the highway
listen to them big trucks whine
I'm goin' out on the highway
listen to them big trucks whine
Ah white freight liner
won't you steal away my mind

< instrumental break, 1 verse worth, fade out>