Ok , jus got my kits today, and front and rear are installed myself, kinda easy. But im stuck at the sides. I read the instructions, so i went to unscrewed 4 srews on the bottome, 2 infront, 2 on back, but then i could not take it out. The instruction says that you have to slide it forward and pull it out. But unfortunately, i could not slide it, could not move it left or right either.

So guys, any suggestions, or ani ideas. Help me out. Thanks masters