Dan McCormack adds: Back when I was involved with my 1966 Dodge Charger there was a lot of confusion about ordering new sway bar bushings. I dont think we ever nailed down an exact date of when they changed, but all the early 1966 Chargers had this style of 1965 sway bar. Sometime during the run of 1966 cars Mopar switched to the later style bar with the links that attach to the lower control arms.
The 1962-1965s all used clamp-on style front sway bar. The later-designed sway bars (1966 up) are usable if you change the lower control arms to versions with the sway bar tabs, but welding on the K member brackets is necessary.
A 1962 Plymouth with a factory-installed sway bar had the same sway bar as those used on 1963 to 1965 B body cars and had the bracket mounting holes drilled in the K-member, no matter if the Mopar was shipped from the factory with or without the front sway bars. The motor mounts are different on some of the 1962 B body Mopars (see below), but the rest of the K member should be the same; the lower and upper control arms, spindle, torsion bars and steering box all interchange. While the 1962-1965 K-frame was the same, what was different on some of the early 1962 Dodge (and perhaps 1962 Plymouth) B-body 318 Poly V-8 engines, a Floating Power motor mount was used. This type motor mount, a large biscuit, would interfere with some header installation (e.g., TTI). So the old-style biscuit would have to be changed to the Insulator/Bracket type to install the headers.
Some people apparently call the early factory clamp setup ineffective, but those installing it on their 1962-1965 B Body Mopars report a good improvement in handling. Indeed, there must have been some reason for Chrysler's engineers to redesign the sway bar design for the mid-to later 1960s models, though exactly why is not clear (i.e., engineering reasons versus cost saving measures).
Thanks to Nico O., Bill P., Dodger, Ollie, Nick T., Stan K. for their input.
Nico writes: I have an aftermarket front swaybar on my 1964 Plymouth Sport Fury from Firm Feel. As I recall, I had the K member out for welding up the seams and while it was out we welded on the K member brackets. I also used later model control arms that had the sway bar brackets on them. Also, the whole K-member is powder coated black.
Photos by Nico of the aftermarket sway bar on his 1964 Plymouth Sport Fury
February 17, 2008; updated February 24, 2008; July 22, 2011; May 26, 2015