The standard line doesn't fit tight enough IMO.

You should have an import parts shop in your area, I would try them first and see what they have in stock, most of the franchise stores only carry standard line. The shop I went to sent me let me try out several different hoses, the stuff that fit tight was a German made line w/a braided cloth covering, it ran about $1/ft.

More than tread lightly. Leave it like you were never there, nor anyone else.
'90 X-cab 4.88's 33 BFG AT's, rr ARB, Headers, Ignition upgrade, cold air induction.
'91 X-cab 5.29's 315's BFG MT's, rr ARB, custom bumper and flatbed