Matt,
the only issue with the bumper(if headlights hoop were specified), when mounted will most likely contact the upper bumper cap. SEE
RED ARROW IN PIC BELOW. Some owners
(not all) had to
notch the upper bumper cap for installation. I new this going in, because I searched the web for
"Nissan Frontier ShrockWorks bumper" pics. Some installations cleared, or barely cleared the cap. Some made slight contact which caused the hoop to rub on the cap.
View attachment 127628
I didn't want to notch the cap, or the loops to make contact. My fix was to fabricate two 1-1/2" spacer plates for the ShrockWorks bumper mounts, to position the bumper forward and prevent hoop-to-cap contact.
As you can see in the pic below, there is at least 1" of clearance.
View attachment 127633
As for front end sag after Winch Bumper installation, it caused a 3/4" drop of the front suspension. The bumper weight is 138 Lbs. The 17K winch is 64 Lbs. 202 Lbs total. Turning the coil-over adjusting rings 2 round brought it back to where it was prior to the Winch Bumper install. On a drive to town and back, I noticed no difference in ride quality.