LS Harmonic Balancer Installation Tool Crank Pulley Install Tool 551141 Compatible with GM 1997-UP V8 LS1 LS2 LS3 LS4 LSX LSA LS6 LQ4 LQ9 with Thrust Bearing & Wrench Flats

Works great with some high pressure grease, but didn't come with any instructions. Easy enough to figure out. It is one time use on the thrust bearing, maybe that should earn it a 4 star but it's cheap enough to replace the thrust bearing only when needed. Possibly operator error because I used a cheater bar and put some weight on it to make sure the pully was completely set. 5 stars either way and makes install super easy and tool removal is even easier! Threads fit 2011 silverado 2500HD 6.0 perfectly

Great tool , arrived fast and worked perfect.Lubed the outer bore and anti seize inner bore on the balancer and lightly lubed tool threads.Installed tool finger tight , snugged with a 12mm backed off a hair and walked the nut down with a 24mm while holding the tool stud with the 12mm.Walked in no issues, tool felt smooth and sturdy.

Works great! Easy to use great quality for ls engines.

My standard harmonic balancer installer would not work on the Gen V 5.3L engine I was working on. This tool worked perfectly.

Works on an ls1/ls6 as should, but don't expect to get more than one use out of the bearings. It comes with two, but I've done two installs and both broke.Go out and buy 6 more washers so you can get a wrench on there without the main nut being inside of the balancer.Thread the tool as far into the crank as you can, then hold the end with a small wrench (13mm if I remember), and use a 24mm to push the balancer on. If you use a socket and turn the main nut, you will be turning the entire tool, forcing it further against inside of the crank.

Used it to install dampner on 2012 gmc 5.3 liter.Worked perfectly using socket and ratchet to draw pulley onto crank. Remember to grease the threads.

Great inexpensive tool to get the job done, I've used it several times and have no complaints.

Nice easy to use tool great for the money