Need some rear suspension suggestions.

[OldJimmy57]

OK like the title says I need some rear suspension suggestions. First I will give some information on the truck it is a 1957 Chevy 1/2 ton with a 2004 Crown vic front suspension. I have a 2000 ford explorer 8.8 rear end with 3.73's and a trac-loc. I currently have a 68 trailing arm rear suspension that I am trying to install in the truck. I think it is the route I want to go but I am fishing for some pro's and con's on this rear end verses say a 4 link. Main issue I am trying to work around are the wheel sizes. I am going to run 20x16 wheels and the trailing arm rear gives me a little clearance verses the 4 link taking up valuable real estate on the outside of the frame rail. So just needing some info. any advice would be very helpful.