not many 232 owners around.
CW sells and installs them, that's where we got the one for our 23SS.
all you need to do is provide the slide's dimensions.
go to Dometic or Carefree, the two slidetopper manufacturers and you'll see instructions on measuring.
in fact, CW's website has the same thing. just measure what they ask for and they'll tell you what one will fit.
and Zoe the Wonder Dog(R.I.P.)
'07 Roo 23SS pushing an '07 Chevy Avalanche
Equalizer WDH and Prodigy BC