As Jason states. The Sandman lineage starts in HQ as XX7, and becomes XU3 around 10/75. These all have load rated tyres. The new Sandman introduced in 10/75 had the XX7 option code transferred to it. This basically gives you two Sandman option codes after 10/75, and only one prior to that. Not sure why GMH did this. It would have been much less confusing if the new package with passenger tyres was called XU3, to closely match it's non-Sandman commercial vehicle with passenger tyres - XU4.

Bit of trivia there for anyone having a trivia night - If you optioned XU3 in a HQ Sandman what would you get? Answer down a page.





















Neutral headlining!