Don,
Yes there is still a front sway bar, don't know what size it is but I'm sure someone else will answer that. The size isn't listed in the factory service manual that I know of.
Rear sway bar was done away with on the 2003 PTs.
Yes larger should reduce lean, transfers more energy to the opposite wheel/suspension components.
There have been mixed reviews/opinions about adding a rear sway bar and handling, again, I'm sure someone who as added one will post their results.
BTW- I sent you an email to your Hotmail address, did you get it?
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John & Terry 
"His" - 2002 Inferno Red Touring Edition
"Hers" - 2003 Electric Blue Limited Edition
Del Val PT Cruisers
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