i bought a used trailblazer with 24.9 apr, its for the wife. anyways, i am having a hard time getting the passenger seat to slide back and forth. do i need to replace the tracks? or maybe the lever?

 

Try sitting in the passenger seat and use your body to move it back or forward. Try some silicone lube on the rails. I had an older car that was that way. It sat in one position for years and a good jerk helped it start moving again. Good luck.