This listing is for a 3.54 Crownwheel and Pinion 11/39 for the Ford English AXLE . Manufactured by one of the best spiral, bevel gear manufacturers in the world, established in 1955, TUV Certified TS EN ISO9001 - 2008. To original Ford Setting x 18 NiCRMO5 Material, all ratios individually finished by lapping, matched and numbered as a set. We can build this into a complete Diff, Please enquire. Ian Evans 07971 551927.Overseas, Scottish Highlands / Islands + Ireland please enquire on Postage cost prior to purchase