If you still have the lever arm dampers at the rear you could try a heavier weight oil. Cheaper than changing to telescopic shocks. Need to try this with my '76 car, particularly when loaded with Madame and a large'ish suitcase.
Cheers,
Graham (G4FUJ)
Sold L44FOR 4/4 Giallo Fly '11 MINI Countryman Cooper D All4 '90 LR 90 SW
