1991 Lebaron rear end rattle

I have a 1991 Le baron and the rear rattles. Upon further
investigation I found that the rear sway bar was banging the axle
causing the rattle. how do I stop this rattle.

 

Very common failure on all the K-derivatives except the Spirit R/T and
IROC R/T. On all others, the tubular sway bar breaks at its weld(s) to the
trailing arm channel ends, and/or splits longitudinally. This causes
different kinds of squeaks, creaks, sproings, clunks and rattles depending
on how and where the failure(s) occur(s).

The factory fix is a new trailing arm assembly -- $$$.

The better fix is to have a competent welder remove the failed tubular
bar, clean up the channel ends and weld in a correct-length round piece of
solid spring steel. If the welding is done correctly, this results in a
permanent fix and better handling.

DS

 

How about some more info on this bar, such as diameter and type
of steel, torsional properties etc?

A "correct-length round piece of solid spring steel" covers a
very large range of metal properties!

 

Not really. It's not as though you have to reroute auxiliary power via the
ODN conduits to the secondary EPS relays or anything. All you have to do
is pick or make a good quality steel bar of the correct length. It should
be round in cross section.

Lots of people have figured this out. You can, too.

DS