The 'E' Type Forum

I'm fitting a E Type fabs 5 speed gearbox to my E that currently has a 3.07 axle ratio.The cars original tyre size was 6.40 x 15 on original rims - 5" wide I believe. I want to achieve circa 2500 RPM at 80 MPH / 130 KPH and an not sure what diff ratio I need to change to 3.54 OR 3.31 - I will be usi...

when fitting the Fossway front callipers in this article did you have to change the size / diameter of the brake cylinder as the amount of brake fluid to be moved may be different ?
Colin