TRS-4000 Nylon Arm Lock Extrusion for arm length adjustment. For Serial Numbers 411091and above.

NOTE:  This part is no longer available.  Please see the new version 31000044 without bolt holes, we are sure sure that 31000044 will work on your unit, but we want to give you the option to see if you can modify your unit or the part to make it work for you.  NOTE NOTE NOTE  - if you modify our part we will not accept it as a return!