Jack stands will probably make it easier but I installed mine with just the front wheels up on ramps (it was tight under there). Install was straight forward and I had no problems. I don't know the torque specs, I just put some anti-sieze on the threads and tightened them down good. Also, after a day or two of driving I went back over all the bolts with the wrench again. I did also run a bead of high temp sealant around the inside of the drivers side bell flange per the MRT instructions and so far have had no leaks. Good luck on the install, I also picked up a bunch of mid range power.