3-Inch Rear Dual Rate Spring Kit for 4Runner, FJ & GX

About this part

3-Inch Rear Dual Rate Spring Kit, fitment-checked

Dual rate rather than single: the spring runs soft at first and firms up as it compresses, which is what lets a 3 in. lift stay comfortable unloaded and still cope with weight in the back.

Coverage is the Toyota 4Runner from 2003-2024 in Limited, SR5 and Sport trim, the FJ Cruiser from 2007-2014, the Lexus GX470 from 2003-2009 and the GX460 from 2010-2023 across Base through Ultra Premium. A dual rate coil solves the problem single-rate springs create at this height — either too stiff empty or too soft loaded. 3 in. of rear lift, Lifetime warranty recorded, 37 lb boxed, with a downloadable installation guide.