Fuel pump lock ring removal tip.
I used something like this
https://www.homedepot.com/p/TEKTON-3...1103/205560102
and this
https://www.homedepot.com/p/Mayhew-1...5602/100126632
That lock ring didn't even try to fight me. 4-6 whacks with that sledge/chisel and the lock ring was loose and less to get it back locked again.





