Steele Rubber will repair the
Spring Seat/Pivot Bushing . No part, service only. But costly.
tclederman's, above post suggestion
3100 torque-tube rear axel bushing (spring to axle) is the most cost effective way.
You just have to clean out all of the old rubber inside of the
Spring Seat Housing then press, pound, hammer, in the
bushings. Here are the
RUBBER WASHERS (spring seat
Seal) 1929-54 Master Parts Catalog, Group# 5.404, Part#
597267 Chevs of the 40s has them
HERE Steele Rubber has them
HERE Once you replace bushings you have to seat them.
Rear Bushing Seating instructions below:
Page 1 Page 2 The bushing has a inner metal sleeve so when tightening the eye
bolt the ears on the axle will not collapse inward.
Stock Spring Seat from 1954 Chevrolet 3100 Panel Truck, (No blocks)
Pic
ONE Pic
TWO 
