Brakes do get HOT ~400 degrees actually. What is the symptoms your are experiencing, fading, brake smell, vibration?
No need to rotate the front caliper pistons as you compress the front calipers. That process is only for the rear calipers because of the parking brake mechanism.
the tacoma has calipers on front.
The brake calipers can be the same the front calipers on turbo cars is normally bigger as up to 90% of your braking force is on the front brakes but the back ones are somtimes bigger not always
Could be cheap brake pads.
No
Sticking brake calipers. This can be caused by moisture in the brake fluid which will cause the calipers to rust. Replace the calibers and replace all the brake fluid. It can also be caused by driving with your foot on the brake.
No front brake calipers are to big. If you must calipers can be machined down at a big cost.
Corrosion? Contaminated brake fluid?
The easiest way is with a "C" clamp.
7mm
The 2003 model has different caliper assembly for the brake system of the vehicle. If your Caravan has drum rear brakes, it uses TRW brake calipers. If you have disc rotors in the rear then the front will have "Continental Teves" calipers (Haynes 9-3).
it cost me 650$ for new front calipers and discs, they seased up