REPLACEMENT PART NUMBER: RS16933LH RS16933RH Trailer ramp springs fit shaft 1.5" in diameter.
SPRING SIZE: 4" long ears, 1/2" steel round bar, 1-5/8"+/- inner diameter. 1 x Left Trailer Coil Spring + 1 x Right Trailer Coil Spring.
EASY LIFT RAMP: Trailer coil springs provide 90° of deflection and 2000lb of torque, making it easy to lower and lift heavy-duty trailer ramps.
FUNCTION: Trailer ramp coil springs help support the ramp and raises or lowers it as needed, reducing manual effort and increasing operational convenience.
FOR ROUND PIPE: Trailer Ramp Springs are designed for use with round pipes, not square pipes, which can cause the ramp springs to bind.