Some of us are probably quite aware of 'front-to-back' coil spring swaps with Wranglers (TJ) and Grand Cherokees (ZJ). Most noteworthy is the TJ swap since the factory rears are very close to KJ specs. Has anyone attempted a test-fit of ZJ rear coils, or TJ front coils in the back of the KJ? Looking at 'installed height' data from Moog, the potential is ~3" lift with a few different spring rates. I'm not spending $250-300 on lift springs. Hoping to see if anyone has tried before I go junkyarding. https://www.moog-suspension-parts.com/u ... prings.asppart#, load rating, relaxed length, installed length.... TJ front3224: 719#, 16.39", 11" 3226: 834#, 17.25", 11" 3228: 650#, 16.18", 11" ZJ rearCC721: 572# 14.16", 11" TJ rear3229: 653#, 11.28", 8" KJ rear81057: 605#, 11.1", 8" (specs from AC/Delco equivalent 45H2137)
_________________ Hers: 2005 KJ, V6/6spd/NV242J/3.73/posi, 2" Teraflex, ¾" cradle drop, KK forks, 22½" hub-to-flare, RRO arms, 245/75R16s, 260,000km Mine: 1993 W250, Cummins/5spd/NP205/3.54, Lockright, ~3" lift, 315/75R16 Duratracs, extra smoke, more noise, 374,000km
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