When looking for suspension improvements, i.e. "sway bars" the proper terminology should be used..
The bar that is used on the front end of most vehicles, pickup or car.. is actually a bar to control body roll.. Not a sway bar..
This type of bar is generally attached to the frame with insulated brackets on both frame rails, the outer ends are attached to the suspension components via a flexible link.. Generally 3/8" threaded rods with washers and rubber bushings..
A true sway bar is generally found on vehicles that have coil springs front and/or rear.
This type of bar is also generally called a "panhard" bar.. In reality it's purpose is to keep the chassis inline with the body..
A true sway bar is attached to the frame, at one point, then attached to the axle on the opposite side.. This type of bar allows the body to move up and down, but limits the side movement...
Ford started using the "anti body roll" bar on the front of the '40 fords. Ford started using a sway/panhard bar on the rear of the '47 Merc's.. Attached near the right backing plate and the left side of the rear cross member.
I have always fostered the opinion that Ford adapted the use of the rear sway bar when they went to the longer shackles on the late '40 cars.. The earlier short shackles really limited the axle movement... Ergo, no need for a sway bar.
The front "roll bars" used on early cars is generally quite small, 5/8" compared to the late model vehicles, 1" plus. As car bodies got larger and heavier, a more robust bar was needed..
It is very important to insure that the body and chassis is in alignment before installing a sway/tracking bar.. If the two components are misaligned, the vehicle will go down the road like a "crab".. It is also important that the body be at it's normal ride position. Lowing the front and/or rear of the body, after the bar is installed will alter the chassis alignment.