gravity5
+1y
It really depends on how high you drive and what type of driving you do. For a smooth riding truck that you need decent lift out of, a leverage setup is great, but it will wear bushings out faster.
For hard driving, and perforance cornering, the bag over axle is better.
But even then it depends on bag size, brand, wheel weight, rearend weight, rear suspension type......
I personally run a 4 linked rear, triangulated ( front and back triangulated, which sucks ass) and 6 inch bags on the outside of my frame, inside my wheels.....and I love it. But then again my truck is considerably heavier than the old mazdas.