Update : No longer available. This axle is believed to have a 3" drop compared to a stock axle, and features built-in bosses for shock mounting. Dropped tie rod ends (Speedway type 910 48640) are generally required to permit the tie-rod. Kingpin centre to centre = 50 1/2". Spring pad centre to centre = 29". I also separately have unfitted speedway disc brake conversion, all hardware, without the Ford spindles/stub axles. The reason is i bought an1949 F2 that was going to be lowered builder go as far as fitting the dropped axle then abandoned. I bought with rest of the kit as well as the old axle but then decided to go stock for the resto. The truck is now gone but I have these customising parts for sale which I believe are all Speedway brand and applicable to F1, F2 and F3.Collect or can package for your courier. Chris 07980068107.