I think subframe connectors would help for any car, regardless of how it's driven. My passenger side door seal squeaks whenever I get on or off the brakes with how the chassis flexes from the loading (I don't have connectors yet).

1967 Dodge Coronet Deluxe station wagon

1.03" T-bars, QA1 arms/rods, Cordoba/GM Metric/Volare brake & knuckle, XHDs, Hellwig rear sway, 318 Magnum w/ air gap, 727, 3.23s