Quote Originally Posted by HK1837 View Post
There was no uprate from XU4. Only a downgrade from normal. Springs are the same. Reduction in GVW is wholly because of the tyres. Exactly the same today, where you have to fit load rated tyres to load carrying vehicles.
I don't agree with you there Byron.

Standard Van, Ute and One Tonner had six leaf rear springs.... XX7 and XU4 had four leaf rear springs. Shock absorbers were the same until HZ where regular and heavy duty rear are listed for 60,70 and 80.

Just changing the tyres would do little to improve ride comfort....