all shocks do is keep vehicle from moving up and down floating after a bump, etc,
just for the ride quality
sometimes theres too many springs on a vehicle such as a 1 ton dually to even need shocks cuz the leaf packs dont even flex enough to do anything but bounce the rear axle over the bumps
pointless to have shocks then,. they would never be compressed except when you loaded the truck down with a load of something
i was reading somewhere that gm was advertising why in 73 they put the shocks staggered opposite directions and on opposite side of the axle tubes and it was something to the effect of it helps keep the axle housing form turning or bouncing or something
i dunno
personally i think the best is the 72 older setup but move the tops of the shocks closer to axle so they are vertical
then they can be most effective that way
you would think
who knows
everyone will opinionate on shocks stuff liek this
shocks are jut there for ride quality, and thats it, and on alot of leaf spring rear vehicles(those with a ton of leaves like 8 or more) i dont see the point of having any, theyre never gonna travel unloaded anyways, loaded either
once i removed the shocks from an old 68 pickup with coils rear and drove it down the street like 35 or 40mph and that damn whole back of truck would never quit riding liek a a boat going over wind driven waves, it was nuts, would never stop traveling up and down the entire drive haha, it was funny as hell though,
definitely have to have shocks on lighter springed vehicles, for sure!
whatever works.., or seems right to you :d
i dunno if any of the info will help you but good luck