thanks for the advice, will call them and see what they say.

i also have the option of a t34 roller bearing turbo on a .63 housing which i'm trying to find the identity of, led to believe its an owen developments unit but has no numbers they can match.is there any way to tell if it is roller bearing just by looking or would i have to fit it and see.

i'm certainly interested in this unit if it is what it says