3J Historic Ford English

3J Driveline limited slip differential unit based on the "historic" Salisbury type limited slip differential. It is more basic in design than our NXG unit and as such cannot be fine-tuned for individual applications. With stronger housing and end-plates thanks to our unique treatment process. We recommend that you check for correct fitment before purchasing. Ultimate Specification upgrade available - includes the installation of sintered plates for further performance gains and quieter operation.