dumb rear end question

[HandyAndy]

my pics are on the desktop at home...............

but there is a thread titled " question about Saturns/Fabbys rear end" in the bodywork section, last thread on 2nd page.......

that thread shows the rails & a drawing of the boxed tube needed for fitting a GRP tub.

hope this helps (soz, can,t do linky things )

cheers
andy