If dropping the transmission, it is wise to place your 6 ton stands under the axles (as wide as possible) rather than the frame. This allows you to get the Jeep higher for better access to rolling the transmission out from under the Jeep without having to raise the jack stand as high as you would have to under the frame. Since the brakes and gearing will hold the rear stationary, I usually jack up the front first under the front diff.... Yes the front diff is offset, but just jack it up until the passenger tire is off the ground, then place a stand under that side, then set the other stand to the same height, and lower onto the first, then place the second, and finish lowering. Then go to the rear and jack up the rear at the rear diff. When pulling a transmission, it's a good idea to set the rear a few inches higher than the front because the transmission will be sitting at a downward angle, and it makes it easier to remove and re-align when you're ready to reinstall it. Before crawling under a vehicle sitting on stands, make sure your stands have all legs on the ground, then grab a bumper and try to shake it...make sure it's solid. This all assumes you have a floor jack.