Has anyone else had this problem I was doing the brakes on my truck nd wen I went to push the piston back in the caliper the boot didn't go in wit it I got the piston to come out enough 2 put the boot on again nd it work but I wanna know do u guys suggest getting a new caliper?

 

No. As long as you did not get any dirt into the caliper bore past this seal, you're alright. At the very least, you may have to bleed it if air got in.

Since you did not mention that any brake fluid got past the seal, I'm assuming you're alright.