These tie rods are made from 3/4" x .065" wall chromoly tubing, and feature 3/8"-24 LH and RH threaded tube ends. The LH threaded tube end has a machined line to identify it. Stock length for our MTX chassis is 38.75". Stock lengths for the SST wing axle is 36.75", and the SST non-wing axle is 39.75". We also offer custom length tie rods. When ordering a custom length, please put the overall end-to-end length desired in the note field when completing your order.