The shop looked at the vehicle for a good hour, they think it might be the lower motor mounts going bad. Is this a tough DIY project to replace them? Also is their any way to lube the strut mount? The reason I dont think it is the strut mount is it only pops when im backing out of my driveway (my drive way is on a hill) the steering wheel is straight and when I give it the gas to back out I here the popping noise it only pops one time I put it in drive hit the gas and it pops one time other than that it only does it occasionaly after I hit the gas after a red light. Last thing been looking for the quickstruts cant find them anywhere for my van would you know where I could get them and the part number? Thanks