Peugeot 405 gear box questions

[topper]

Greetings all. I am going to have to do a gearbox swop on my 91 Pug 405 GRD. I have been unable to find out what, if any, ratio differences there are between the GR (petrol), GRD (diesel) and GRDT (diesel turbo) gear boxes / drive trains.
Current box is a 5 speed BE3 box.
Can any one shed any light on trans ratios, diff ratios and speedo drive variations?
Thanks.

Neil

[2052NV]

can't give exact ratios etc. but the diesel box will (someone correct me if im wrong) have longer ratios. SO MORE TOP SPEED!

but i imagine it wouldnt be a big difference

[BigPete]

Diesel Pugs I've driven have had first gears for pushing 747s around the airport.