Thanks for the advice. Dave was right (unsuprisingly
), there were loads more entries in the Summit online catalogue, though the KYB entries were a bit confusing. Both types for Challengers were listed as 'fronts'. After a bit of furtling round the KYB site, I can advise the correct numbers for anyone looking to buy KYB's in the future, are:-
Front: KG4510
Rear: KG5512
Through Summit, the KYB's are $27 each. The Koni's are $99 each. which unfortunatley is a bit too expensive for me. Hopefully the KYB's will be a big step forward from my current leaky old air shocks.