This is a 24-spline free wheel locking hub designed as a replacement part for Series III vehicles.It is compatible with the following models: 109 Series III 2.3L petrol (1971–1983, specifically January 1981–June 1983), 109 Series III 2.0L diesel (1971–1983, specifically January 1981–June 1983), 109 Series III 2.5L diesel (1979–1983, specifically January 1981–June 1983), 109 Series III 3.5L V8 petrol (1980–1983, specifically March 1980–June 1983), 88 Series III 2.3L petrol (1971–1983, specifically October 1971–June 1983), and 88 Series III 2.0L diesel (1971–1983, specifically October 1971–June 1983).It fits vehicles with 88-inch and 109-inch wheelbases, including Series III and Series 111 models.The hub features 24 splines, 6 mounting bolts, and a mounting pin spacing of 95.25 mm.It is manufactured to match form, fit, and function.Installation instructions are not included.Professional installation is recommended.Due to variations in and screen settings, color may differ slightly from images.Manual measurement may result in a tolerance of ±1–2 mm.