Review on ACDelco Professional Rear Coil Spring Set 45H2113: Enhanced Performance and Durability by Thimothy Purnell

I immediately noticed the difference between these springs and the standard springs. There are probably 1-2 more coils and the machine flexed when my 85 lb son leaned on it, now it's fully supported. If I had known about this years ago, I would have changed the stock Altima springs. I would buy them again in a heartbeat. Who would have thought that springs could be changed so easily. 1 bolt per side and the holder will fall off and you pick it up with a new one and put the bolt back in. I probably changed both of them and flipped the tires in 30 minutes and that was my first time.