rear sway bar?

On Susp Conn site I see 5906 (is this tubular or solid) & 6905 (rear 1"). What's the deal with the different PN's?

We offer solid heat treated bars and tubular sway bars. Some like the solid heat treated chrome-moly sway bars, others like the weight reduction of the tubular bars. We are the only aftermarket manufacturer with the capability to offer both. Here's our p/n's for Mopar A-Body applications:


55906 1-1/8" Tubular FSB 67-72 Mopar A-Body

5906 1-1/8" Solid 4140 FSB 67-72 Mopar A-Body


55905 1-1/8" Tubular FSB 73-76 Mopar A-Body


5905 1-1/8" Solid 4140 FSB 73-76 Mopar A-Body


We just put an extra "5" in front of the solid p/n for the tubular p/n

For the rear there is only one option for the Mopar A-Body

6907 3/4" Solid 4140 Adjustable RSB 63-76 Mopar A-Body


THe 6905 is an old p/n that was replaced by 6907