I will order some 5mm x 16mm SS rivets. I have one of the large double lever riveters, with 2 foot long handles which copes with up to 10mm diameter rivets, so 5mm SS will be no problem. I suspect these rivets were replaced with too short and soft rivets at the time of the chassis change. I will also order some fibre washers to go between the body and the chassis but I did wonder if a long strip of the double sided adhesive industrial bonding tape might be a better idea than the fibre washers.
Thanks for information guys.
