Ian, I think your car is from the era when MMC bought some offshore low grade leaf springs & the issues you describe, other owners have had

This firm used to be (may now be back) the original OE manufacturer, using pukka quality steel & hand forged in the heartland of proper heavy engineering

Owen Springs, Rotherham, tel 01709 710700

Owen (I think) now supply MMC and probably aftermarket suppliers like Mulfab, but Caveat Emptor


Jon M