I chose a 4 post
its moveable, (2 post isn't)
I roll it out to make a mess, (steam the bottom of a car)
I'd suggest a 9k, as its capable of handling your truck too !
I went extra wide, and extra tall to allow my truck to drive under the rack,
I chose a chinese rack, if you look real close, alot of american made racks have some (?) chinese parts!!!!
there are horror stories about failure, most are from lack of proper set up, or lack of maintanence.
my neighbor has had his 57 buick raised for over 4 yrs now, with no issues.
another car is parked beneath it,
your choice......... but do not let BS stories scare you.