This product is a Lower Steering Column Intermediate Shaft for 1987-1991 Ford F150, F250, and F350 Pickup trucks. It is an OEM part manufactured by Ford and is compatible with interchange part numbers 37.FD8690, 237.FD8688, and 237-FD8691. The specific Manufacturer Part Number is not provided in the listing. This product falls under the categories of Gearboxes, Rack & Pinions, Steering & Suspension, and Car & Truck Parts & Accessories on eBay Motors.