USPS doing their part to eliminate old Mopar parts

I save the 1" and 2" thick flat styrofoam packing sheets and use that on all 6 sides to completely box in a manifold like that in a flat rate box, wrap the ends of the box in duct tape and send. I sent brake spindles, dust shields and caliper brackets in a med flat rate boxes several times. No issues. Very rarely, like "never" have I shipped anything to anybody and had it show up broken or missing. Even shipped 69 cuda grilles UPS. We all know how fragile those damn things are. I removed the signal lamps and shipped them in a seperate box. Used a double walled corrugated box. Think 1/2" thick then used that 3" wide foam sheet to completely box everything in from all sides. Put $1,000 insurance on em. Arrived perfect shape