ITS NOT THAT HARD!!! If u take off the intake pipe from the throttle body u can see the top of the mount, if u can get somebody underneath to take off the engine side mount then take off the body mount replace and leave loose and put the engine side back on then with the body mount still loose u have a little room to play so get the bolt back into the mount then tighten it all down
I love my 88 duro mounts its a different car with them, yeah theres cabin vibration but i like it, the car roasts them through first and half a second no problem, i dont know if i've ever spun the tires before the mounts haha