PRW SFI BAlancer P/N 2431841 which balance weight.

MOPAR SB 360, Chrysler, 1971-92 18.40 oz 2391012
MOPAR SB 360, Chrysler, 1993-97 10.72 oz 2391013
MOPAR SB 340, Chrysler, 1972-73 3.68 oz 2391014

from there catalog