battery cable nut size help (2 Viewers)

[nomadsurfer]

I need to replace the neg battery cable since the terminal clamp cracked on the FJ62 . Anyone know the wrench size for this hidden mofo nut? Any advice on an easier way to loosen?

 

[OSS]

AC compressor needs to come off first then it's sitting out in the open. 19mm I believe on a FJ60