If you have "commercial" 5.43 diffs then you can comfortably run a bigger tyre (usual caveats regarding arch clipping under bump/full lock apply) If you are blessed with caravelle 4.86 diffs then maintaining the rolling radius is gar mote important.
Sent from my S60 using Tapatalk
'85 syncro 'velle resto, '90 SA Microbus project, '95 SA Microbus 2.6i