My first RC model was an Outlaw Ultima Truck. I finally got sick of busting gears, everytime I tried to run it. The Ultimas came with some unadjustable plastic tie rods, but they weren't used. You should be able to replace the missing tie rod with a good quality turnbuckle. You eou either need to find one with ends that will fit the balls on the Ultima, or find ball ends that will fit the new turnbuclle, and can be bolted in, in place of the stock ones.