Many thanks for the tip, since my son lives in the USA I will get him to follow up.I would talk to the Rover car club of Canada. They have a decent spares stock. Failing that Voking2000 on eBay sometimes has (expensive) NOS LHD boxes.
Unfortunately JW Wadhams are not very reliable. They advertise LHD boxes on their website but they don't have them.JRW has them on their site. Make sure you confirm they actually have one in stock before giving them money though. Manual steering box: LHD - J R Wadhams Ltd
Yeah, I try and avoid them whenever possible. Hence my note about checking availability. As mentioned, Voking2000 on Ebay used to have some NOS ones. Might be worth a message?Unfortunately JW Wadhams are not very reliable. They advertise LHD boxes on their website but they don't have them.
Many thanks, the old box is not repairable, the end bearing shells are completely ruined and there is excessive wear on the worm, there are also other problems.Will keep searching in France for you. Is the box repairable? What is the fault?