This is the H&R Sport Spring kit, part 29744-1, for the 1993–1998 Jeep Grand Cherokee ZJ with the 6-cylinder engine. H&R lists it as a front and rear lowering set, with the manufacturer's application data showing about 1.75 inches of drop in front and 1.5 inches in the rear. Compared with stock springs, it gives a lower stance and a tighter, more planted feel in corners, at a price well below coilovers. Buyers searching for a ZJ 6-cyl drop-in lowering spring that keeps the factory shock setup usually want this kind of balance. For the best results, pair the springs with shocks that are rated for the lower ride height.
The ride height change depends on the rest of the vehicle, so confirm the drop on your own Jeep after installation. Owners on user forums commonly recommend replacing worn stock shocks at the same time, because the stiffer springs can wear them out faster and the stock dampers may not control the new spring rate well. Fitment is specific to the ZJ 6-cylinder chassis, so match the part number to your year and engine before ordering. Because a ride height change alters suspension geometry, plan on a professional wheel alignment after the springs go in.
The manufacturer does not require it, but owners on user forums frequently report that worn stock shocks struggle to control lowered springs. Many recommend replacing shocks at the same time for a more controlled ride.
Yes. The manufacturer states that alignment should be checked after any ride height modification, and that you should follow the factory service manual specifications to get as close to factory alignment as possible.
The manufacturer says H&R springs should be installed matching the orientation of the factory spring being removed. If a spring is the same at both ends, the closer-coiled end goes up.
Replacing these springs is a hands-on job that involves lifting the vehicle, supporting the suspension safely, and working with spring-loaded components. Owners on user forums advise having a helper and marking the original spring positions before disassembly. Before you start, check the installed spring orientation against the factory spring, and plan for a wheel alignment once the work is complete. A detailed ZJ-specific install sheet was not confirmed during research, so follow the factory service manual procedures for your vehicle.
