Pulling to left under braking

Hi
As the title suggests My 89 GQ wagon is pulling to the left under medium to high braking. Ive just replaced the front brake pads and rotors with bda slotted. While doing this I noticed the right caliper was leaking, the dust boot was cracked and the piston was rusted beyond repair so I just put in a new aftermarket caliper.

Ive bled the system a couple times with new fluid.

Could the missmatched calipers be a possible cause or should I look for something else first?

Yep. Get the same type for the other side. If the aftermarket unit has a different volume of fluid or piston diameter, it will have different pressure applied to the rotor.

Yeah that was my own thought as well, thanks for the confirmation.

How’d you go with this?