Roller track rivets

[terrford]

Am trying to install new roller tracks for the front brakes on my '30 coupe. Having read all the advice here I gave it a shot.

Used an acetylene torch to heat the end of the rivet and went at with an air hammer.The rivet starts to mushroom but doesn't go far enough to tighten on the roller track. I beat on it until the little tool that comes with the kit started to deform.

I'm wondering if the "peened" end of the rivet is too long. Does anyone have the dimensions of the rivet used on the roller track?

Thanks,

Terry