Took about 30 minutes to install. I have to admit that the OEM shocks have put in 150,000 miles which is long overdue for new shocks. I'm not sure if the OEMs were bad, but I've had a lot of wear on the inside of the rear tires. My RAV4 handles corners much better and is much weaker on bumps. I notice the difference for the better with these new shock absorbers. I only did the rear shock absorbers. I'll be making fronts soon. Super happy!