So far on my 2002 2wd F-150 I have put coil spring spacers in the front and added the pro-comp add-a-leaf springs in the rear.

The suspension seemed to ride good with my stock 255/65/16's. But now after adding 285/75/16's whenever I go over a bump in the road the suspension rides real rough, like it doesnt want to give.

The rear seems to ride fine, but in the front the ride is real stiff, it feels like my truck is going to fall apart whenever I ride on a bumpy road. Has anyone else had this problem? Please help?