Re: EF ashtray
The EF and EL ashtrays are interchangable, yes, but to convert to a EL ash tray from an EF one, you will need a balbearing type bolt to fit into the right hand side screw bit, as the right hand side of the EL ashtray doesn't have a screw thing, it's a clip, and it clips into the ballbearing.
I recently performed this 'mod' to XR6Child's EF Futura, after we found a nice clean EL ashtray at Jolly rogers. He spent $17, and i spent $95 on one from ford, because my full face one broke, as back2thefutura stated.
The EL ashtray has a nice smooth openning tray, as well as the lighter on the outside. It's a nicer ashtray/front face piece altogether.. Only thing i don't like about it, is that my old EF ashtray has a nice felt bit in the compartment, while the EL one i got musta been out of a base model, and is just hard ugly plastic. But i can live with that :)