A/C outside fan slow and compressor trips breaker

Gibson package unit. Outside squirrel cage blower fan hums, will spin slower than normal when started by hand. I assume a capacitor is bad.
Is this correct?

When I switch on the compressor the breaker trips after a few seconds. Not sure about the evaporator fan. Power goes off to fast.

I have installed a new main panel breaker and a new contactor with the same results. I have switched out the sub panel breakers (breaker still trips when compressor is turned on) Power supply seems good.

I swapped heater power supply wires from sub panel to unit with the same results.
Not sure if compressor is fried or what.

I think I see three capacitors on this thing.

Should I replace the blower and the compressor caps?

Can you help give me some ideas to try.
Thanks
Offgridman

 

What is the voltage going to the unit? You'll need to test the compressor motor for a grounded winding. Scratch a clean place on the larger tube going to the compressor. Make a sketch of the wires where they connect to the compressor teminals. Remove the wires and one at a time ohms test each pin [on the compressor] to the clean place on the tube. If you get a reading the compressor motor is grounded.