WTB new rear leaf spring bushings original

[eat]

hi
I removed my rear bushings and installed a set from
daystar
and now my rear end is moving around when I let off
the gas the drive line slams up in the
slip yoke and now I feel a wobble and they feel mushy
I have a 1972 chevy cheyenne longhorn one ton big
block with a turbo 400 and eaton corporate rear end 410
with a detroit locker

you have any thing that would help or know where to get original ones
or better replacements
please let me know

I did the cab ones at the same time
but just want to get the rear ones fixed first then get the others back to normal also