The original clips snapped in & were very difficult to remove without breaking the tabs.. When I had an R/T SE I put my trim back on using the much more commonly available clips that use a nut on the back side... Getting the nuts started was tricky but certainly not impossible..

The clip design I'm referring to is shown in the ad below but they are to big...

http://cgi.ebay.com/ebaymotors/Molding-C...5#ht_2494wt_872

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