Calling all 4/6 drop trucks

[bcj67chevy]

I'm getting ready to design my tube frame for my 67, adding c4 front suspension and a 4 link. need help with a coulple of measurements so that i can set my frame ride heigth.

How far is the bottom of your frame off the ground and what size tire do you have?

Also you roll pan guys. Whats the measurement from the bottom of the frame rail to the top edge and the lower edge of the roll pan?

Thanks everyone in advance,
Bryan