Hi,
Let's try to narrow this down. First, I attached the wiring schematic below for the starter circuit.
In the pic, I highlighted two fuses I need you to check. In addition to checking the fuses, it's important to confirm there is power to and from them as well. Here is a link you may find helpful for this test:
https://www.2carpros.com/articles/how-to-check-a-car-fuse
Also, there is a starter relay in the under-hood fuse box. If the fuses check good, see if there is another relay with the same part number and switch it with the starter relay to see if that makes a difference. If there isn't one, here is a link showing how to test a relay:
https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit
The idea that the rear main was replaced required the removal of the starter, so make sure the wiring at the starter is tight.
If everything checks good, then have a helper turn the key to the start position while you check for voltage at the small purple wire at the starter motor. If there is power, the starter likely failed.
Let me know what you find
Take care,
Joe
See pics below.
Images (Click to make bigger)
Tuesday, March 15th, 2022 AT 1:16 PM