The Bilstein 24-186155 is a rear shock from the B6 4600 line, built as a 46mm monotube unit for the rear axle of the 2005 Nissan Frontier LE. Owners on user forums describe the factory rear Bilsteins on these trucks by their yellow finish, and this replacement keeps that same yellow-bodied look. It is a direct, like-for-like swap rather than a lowering or lift component.
Owners on user forums describe Bilstein shocks as an upgrade over stock with a better ride, which is the main reason to choose this unit over a budget rear shock. Because the rear is held up mainly by the leaf springs, swapping these is one of the more forgiving suspension jobs on the truck. Searchers looking for a 2005 Frontier LE rear shock, a Bilstein B6 4600 rear shock, part 24-186155, a 46mm monotube rear damper, or a D40 Frontier rear shock replacement will find this listing matches those terms. Confirm your drivetrain and model year before ordering, since user forum reports of this exact application are limited.
User forums report Bilstein rear shocks installed on 2005 and 2006 Frontier 2WD trucks, and the rear shock is a direct bolt-in replacement. Confirm your drivetrain and model year against the manufacturer's application data before ordering.
Owners on user forums report they did not need to lift the rear tires. They got under the truck and removed the shock with the vehicle supported by its leaf springs, though some owners found it easier with the frame raised.
Rear replacement is a beginner-to-intermediate job. Owners on user forums report needing a 14mm socket for the top nut and a 17mm socket for the bottom bolt, with a pry bar to help seat the lower eye. Expect corrosion to be the main obstacle on older trucks; spray the hardware with penetrating oil beforehand and hold the shock stem while loosening the top nut, since the shock will turn with it. Owners recommend mounting the top first, then compressing the unit with a jack to align the bottom eye. Orientation of the upper insert is described differently across forum posts, so match the new unit to the old one before tightening. Torque specs vary by source, so confirm them against the service manual before final tightening.
