I need to tow my WS6 about 3-4hrs to a fab shop. Can this truck pull it off, or am I going to need a plan B?

 

No reason it can't, its still a full size single cab short bed. Does it already have a hitch installed?

 

Few years back (ok 5-6 years lol) Used to pull this car to track 4-5 times year. (6 hours round trip) 5speed/4.8L setup.

 

Its got the hide a hitch that came with it from Regency.
How much does that car weigh in the pic?

 

It will pull it with no problem, these 5-speed trans are low geared along with factory 3.73 will pull it with ease. But keep in mind our trucks are very light so a trailer and car push it around on stops and hills.