Floor Jack Extension (Page 2/2) blackrams FEB 02, 10:57 PM quote Originally posted by Doug85GT: I learned that lesson the hard way too. Luckily I was not under my truck when it happened. I wrongly thought that since the transmission was in park, that it would keep the truck in place. The transmission slipped as I was jacking up the front end. The truck slid back. The jack came off the cross member and smashed up the radiator as the truck came down. Luckily it only cost me a new radiator. I always chock the wheels now when I lift a vehicle. Sir, it only takes one missed step and the price for missing that step can be very costly. Glad you didn't have to pay that price. Rams