someone who has factory G50 HD rear leaf packs

[Fast68Chevy]

i need to know soemthing from someone who stil has their G50 leaf type HD spring packs mounted under their truck

on each end of the top leaf of the HD add-on packs there is a round rubber bumper stop that is similar to ones found on the brackets mounted by the axle tube U-bolts onb coil spring trucks with the G60 aux spring set ups,

i need to know how far above the end of the top leaf that the bumper stop bracket is mounted with the truck at rest and unloaded.

wish i had a digicam,,,,,,

thanks for anything