My son Jake and I spent a whole week rerivetting the chassis of my Marmon Herrington gun tractor back together after striping two complete chassis, sandblasting the best bits and fabricating a replica inner skin. I got 7/16 size rivets from a company in the States which are slightly bigger than the original size rivets. The whole chassis was bolted together first and then each bolt taken out in turn and replaced with a rivet. We made a few different spacers using big bolts and screwing the nut onto the rivet or jacks or whatever was suitable to hold the rivet head in tight while we used an oxy to heat the shat and then peened them over with a hammer and dressed them finally with a home made tool. Went together quite solidly although because Jake is a builder he did all the hammering. It was quite satisfying to know it should never rust. One thing I hate on restored vehicles is seeing rust scale between chassis rails or bulging rust scale painted over.
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