I am replacing front right brake caliper on 99 camary the bushings metal end into mount will not go in flush

If you mean the slide pins, then you need to heat them up, and replace the pins and dust boots.
The easiest way out of this situation is just go to AZ and buy a loaded reman caliper. It comes complete. Take your old one with you for a core.

if you mean the slide pins, then you need to heat them up, and replace the pins and dust boots.
The easiest way out of this situation is just go to AZ and buy a loaded reman caliper. It comes complete. Take your old one with you for a core.

Very good idea!

This will ensure confident, even braking. Very important during busy traffic situations, whether you drive in that stuff every day or only once a month. Positive, confident braking cannot be underrated.