Here is a used APPLETON power rack and pinion. It is the 3.0 and is 18 1/4 long.
The item "Appleton Power Steering Rack 3.0 UMP IMCA Wissota Sweet Dirt Late Model" is in sale since Saturday, October 12, 2019. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Suspension & Steering\Steering Racks & Gear Boxes".
The seller is "wilsonmotorsports2012" and is located in Monmouth, Illinois. This item can be shipped worldwide.