Outer Limits 4x4 Board

G'day guys

I currently have 4.55:1 ratio diffs under my diesel hilux. What ratio is the best for good economy when highway cruising with half a load on the back.

depends on what tyres your running too- on stock 205R16's the 4.3's are the best comprimise of power and economy, but on 33" muddies 4.3's are going to leave the old 2.8D feeling very athsmatic

I went to 4.8's with my turbo 2.8 running 33's or 35's. Puts the speedo pretty close too.