I have a front and rear sway bar on my short bed step side '68.
Adding the front sway bar made a HUGE difference in handling. It made it much more fun and safer to drive.
Adding the rear sway bar also helped but was less noticeable. One thing to watch out for is how big of a sway bar you put where. If you have a rear wheel drive vehicle you want a bigger sway bar in the front and a smaller one in the rear to prevent understeer. It's the opposite for a front wheel drive setup.
All in all, a great mod. Best bang for the handling buck!
Great job on the install. Very clean truck.