vz ute suspension

[Yamaha Techy]

hey

my vz ss ute tends to grind a bit under the front bumper when going up gutters into a few driveways
not sure if im running stock fe2 suspension like the plate says
ive had a look at the springs.....front appear to be black and rears are yellow
if anyone can help that would be great as i bought from a dealer and they seem to have no clue at all!!!

 

[SS-REX]

Pics would help the yellow springs are most likey to be King springs...

 

[MYVESSV8]

castor rod bush's, control arm bush's, or even strut bush's/bearings may need replacing probably the first 2 as you say from front bumper area, also check sway bar bush's and links