Wow- haven't seen one of them in awhile ! ...that's Pure AJ's right there.... I'm not 100% certain, but that chassis may have been used under the Oscar Track Cleaning Vehicle and/or the Tow Truck ?
1970s AJ's Brass Pan Chassis
Wiper Blade Style Pick Up Shoes. Aluminum Wheels with Glued On Silicone Tires. Plastic Pinion Worm Gear, Meshed to a Twisted-Plastic, Axle Crown Gear. Stamped 'Made in Hong Kong.'