rick 4001/4003
marshall IBS series amp most likely with the gain up full and alot of treble/high mids
ampeg 8×10 (live) or 1×15 (you’re living all over me)
stainless steel roundwound strings, i know lou uses DR hi beam 95-s nowadays.
believe it or not, in a jar was not recorded on his rick, it was on another bass… some gibson type.
you’ll have a hard time getting lous tone from the 80s-2005 with a pbass or a jazz I think… alot of his tone comes from the way that ricks chime out chords, they just sound excellent. also a fuzz pedal is the opposite tonally to what you want to use, go for amp distortion or a crazy overdrive pedal but not fuzz.
use a fat pick and strum near the neck.