This is a replacement pinion for the Titan Steering Racks that we carry (custom and stock). Ratio of this unit comes out to be 1.97" of rack travel for every rotation of the pinion. This is slower than the ratio we normally supply.
We also offer the original 9 Tooth 12DP Steering Pinion (Part No. 1808-001), which retains the 2.54" per turn ratio normally supplied on our racks.