25264 Harmonic Balancer Puller: Compatible with GM LS engine models: 5.3L, 5.7 LS1, 6.0 LS2, 6.2 LS3, 7.0L, compatible with Chrysler, Dodge, Jeep engine models: 3.5 L V6, 3.6L V6, 4.7 L V8, 5.7 L V8, 6.1 L V8. Not applicable to 1997 or earlier general LT (5.7L LT1<4) series engines (threaded holes), not applicable to 2018 and newer Coyote balancers.
551141 Harmonic Balancer Installer: Upgraded with Trust Bearing, Work for Camaro, Corvette, Trans Am, GTO, G8, LS Truck, Or LS Power Road Signs. Compatible With All GM LS And LT Series V8 Engines From 1997 To The Present (3rd, 4th, 5th Generations). This tool will not work for 1991-1997 LT1 Gen 2 5.7L engines. Includes: 1* Threaded Rod, 2*Washer, 1*Thrust Bearing, 1*Flange Nut