Rear shox are interchangeable throughout the RWD range, front shox match the spring diameters, loosely speaking there is 1 for Sprint and 1850 models and 1 (with smaller dia spring seat) for everything else.
I think there were several different shock rates available originally but most are now just sold as "Dolomite" so are probably best fitted in pairs to avoid discrepancies in rate.
Steve
'73 2 door Toledo with Vauxhall Carlton 2.0 8v engine (The Carledo)
'78 Sprint Auto with Vauxhall Omega 2.2 16v engine (The Dolomega)
'72 Triumph 1500FWD in Slate Grey, Now with RWD and Carledo powertrain!
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