OBS to LSx conversion

[RPM Graphics]

i would think the line would work. i put an 02 F-body 4l60e in my 96 & i used my 96 lines, just had to bend them a little to fit. the angle they go into the trans is a little different.
i know you're talking about a truck trans but if the f-body is the same i would think the newer truck is the same.
my 96 also has 2 sets of holes. i actually used the forward set on one side & the rear set on the other & my trans lined up perfect in the center. if i would have used both rear holes it would fit but the trans mount stud was all the way against the front of the cross member.