73-76 Sway bar?

Thanks so much guys, it's definitely from a later a body. Would there be any need to upgrade to a larger bar? This Duster is going to be a cruiser but there's a lot of curvy roads in SE Ky. I have the big block T-bars and rebuilt stock suspension. This sway bar looks interesting. Would it be overkill?

http://www.summitracing.com/parts/hel-55905

Not overkill.

Should fit well. I worked with Hellwig on the prototypes for that sway bar. I took 4 tries to get a really excellent fitting sway bar.

Just jack up the front end a bunch to feed the sway bar through the kmember. Need to take on tire off to help you feed it through. The attaching hardware is very sturdy and all the nuts and bolt needed come with the kit. Took me about 1 1/2 hours to install mine that has existing sway bar.

http://www.forabodiesonly.com/mopar/showthread.php?t=96315