Product Description: The crankshaft strength of the harmonic balancer installation tool is 12.9, made of high-quality 35CrMo heavy steel. The quenching process has been adjusted to that it does not affect long-term use. The is black and rust proof. Customized flange nuts, no need to worry about the wrench slipping during installation! Harmonic equalizer installation tool, suitable for , , Trans Am, GTO, G8, trucks or power road signs. compatible with for all universal and series engines from 1997 to the present (third, fourth, and fifth ). [ Installation and Disassembly ] - The crankshaft can be fully screwed in by slowly tightening the nut until the pulley is in place. The upgraded wrench flat is easy to disassemble without worrying, which is necessary for replacing the engine or upgrading the balancer. A little lubricating oil will smoother to use! Features: material Light weight and durability This is High quality of alloy steel material Easy installation, Excellent fitment and Superior Material Harmonic Balancer Installation Tool with Thrust Bearing & Wrench Flats Specifics: Type: Harmonic Balancer Installation Tool Kit Codition: Material: Alloy Steel Color: As Shown Fitment Type: Direct Replacement Placement on Vehicle: Part Number: 551141 (Please refer to the pictures and check before purchasing) Fitment: For 1997-V8 LS1 LS3 LS4 LSX LS6 LQ4 LQ9 Package Contents: 1Set x Harmonic Balancer Installation Tool Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.