Fitting Revell Hemi Dart Interior Tub to Body

[MILD]

I'm very nearly done with my third build- the Revell 2 n 1 68 Dart. However, the current problem I am having it getting the interior tub to fit in nice and square so the lower part of the fireall (the part attached to the floor) marries up with the firewall that is glued to the body itself.

I've looked through those Darts in the underglass section and all seem to fit quite well sO I am guessing there is something I am missing.

Any advice would be greatly appreciated. I really don't want to have another debaclethat was ftting my 1960 Impala tub!!

Thanks in advance gents.

[MILD]

Thanks to the mods for moving and apologies- I don't usually venture this far south!!

My mistake.