Few things
1) Make sure don't have a flat tyre

2) make sure you haven't over inflated your tyres
3) make sure the front suspension hasn't sagged to the point of riding on the bump stops
4) check the shocks, if one has leaked all its oil out it might be seizing up
5) check all your rubber bushes one or more might have perished so you are metal on metal
My 2.8 shorty - now sold, and
comments hereMy old dti - now sold
"Life should not be a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming "WOW --- What a Ride!"
This vehicle runs on 100% recycled dinosaurs