Re: rear stabalizer bar on Vicky
If you are talking about the anti-sway bar, yes I think your '98 should have a 17mm bar. it is thinner than the p71 bar, but I can tell you first hand it definitely makes a difference in the handaling. the end-links for it do wear out, but they are cheap and easy to replace. I've had mine out 3 times for various reasons and can probably change them in 5 min a side blindfolded.
1996 Mercury Grand Marquis GS ~89,000mi, Willow Green inside and out. It's very green.
1998 Chevrolet Malibu Base V6 187,000mi (sold)