Chassis rivet size?

[Howard Wright]

Excellent Greig

Thanks that is just what I needed.  I hope to make up a static snap for below and an SDS fitment for my hammer drill, as Parazine demonstrated in his excellent thread. 

Yep I'll be organising a rivet party in due course.

Cheers

Howard

PS putting box section inside the rails is a good solution but I aim to run as "standard" in VSCC trials and that might just raise too many eyebrows!!