Lowering Springs: Fitment by Car

Model names span chassis changes that move spring mounts entirely. "3-Series" covers the E36, E46, and E90/E92 - three different lowering springs (see our BMW lowering springs page for one chassis at a time). The Jeep Grand Cherokee's WK and WK2 generations use different control arms, and even within WK2 the SRT spring rate changed between 2012-2013 and 2014-2017 trucks (see Jeep coilover options for a bigger adjustable drop instead). Check your VIN or door-jamb build tag against the seller's year range before you pay.

A spring set is tuned per corner, not as one number. The GR Supra's Pro-Kit drops 1.7 inches up front and 1.2 inches at the rear; the Grand Cherokee SRT8 does the opposite, dropping the rear more to hold the factory rake. On trucks like the S10 or a classic C10, front and rear use entirely different hardware: coils or drop spindles up front, a leaf-spring swap or shackle kit in back (see S10 lowering kits). Buy both ends from the same line so the stance matches.

Confirm ride-height sensors: SRT, F Sport, and M-badge trims often carry self-leveling setups or adaptive dampers that read spring height, and a drop over an inch can throw a code if the sensor arm isn't re-indexed. Measure sway bar end links separately - a drop past about an inch usually needs shorter links or the bar binds. On unibody sedans where few dedicated lowering-spring lines exist, a coilover kit is often the better-documented option; weigh that against springs with our coilovers vs. lowering springs guide, and budget labor with our installation cost guide.