The Stovebolt Site Forums The Parking Lot Big Bolts 1957 Chevy 6400

I have a rusted out '56 1/2 ton cab spare from my '56 project and it's right hand drive. My question is will the dash from the RHD 1/2 ton be the same size as the dash from a 2 ton 56-59 so I can use it in a RHD conversion of a larger truck from the USA. They didn't make RHD larger trucks in Australia/New Zealand so a conversion is my only possibility.

And is the dash in the Big GMCs from 56-59 the same as the Chev?