Reviving this out of genuine curiosity.
Has any of Wrangler owner ditched BF Goodrich and switched to lighter AT tires like Geolandars or LTX force?
BFG weighs 30 - 35 kgs
Geolanders: 18 kgs
LTX Force: 19 kgs
If anyone has done that, you might not need 4L for hill climb as bigger and heavier tires are counter-productive for sand dune - long hill climb.
I don't know that, but long ago one of my friends installed a simple LED bulb in his car and brought the same 5-10 dhs LED bulb and showed me how to replace it, it was super easy and quick to make a big diff.