The Superlift for the XK & WK is made up of four different Superlift kits (3 parts kits plus the EGR Module).

5150 Kit Box, Jeep Wk/Xk 4" '05-'06 Grand Cherokee '06 Commander 4Wd
5151 Kit Box, Jeep Wk/Xk 4" '05-'06 Grand Cherokee '06 Commander
5152 Kit Box, Jeep Wk/Xk 4" '05-'06 Grand Cherokee '06 Commander
5154 EGR Module, Jeep WK/XK 05-07

5150:

01-515 Coil Spring, Single 05-06 Jeep Wk/Xk Rr 4"
01-88200 Shock Cylinder-Bulk Gas 27.92/16.50, Jeep Wk/Xk
1-011-5150 Brkt, Cradle Mod. Frt 05-06 Jeep Wk/Xk - Raw
55-004-5150 Brkt, Frt Differential 05-06 Jeep Wk/Xk - Zc
55-013-5150 Brkt, Frt Shock Mt. Dr 05-06 Jeep Wk/Xk - Zc
55-014-5150 Brkt, Frt Shock Mt. Pa 05-06 Jeep Wk/Xk - Zc
55-017-5150 Link, Frt Sway Bar - Zc 05-06 Jeep Wk/Xk
55-022-5150 Spacer, Pre-Load Frt -Zc 05-06 Jeep Wk/Xk
55-027-5150 Brkt,Frt X-Member 05-06 Jeep Wk/Xk - Pc
55-103-5150 Brkt, Rr Diff Uca - 05-06 Jeep Wk/Xk - ZC
55-206-5150 Brkt, Rr Track Bar - Zc 05-06 Jeep Wk/Xk
55-209-5150 Brkt, Track Bar Support 05-06 Jeep Wk/Xk - Zc
55-29-3400 Powdercoated, Brkt, Rear Sway Bar Link Hummer H2 - 90 degree heim

5151:

66-01-5150 Knuckle Adapt., Dr-Mach. 05-06 Jeep Wk/Xk
66-02-5150 Knuckle Adapt., Pa-Mach. 05-06 Jeep Wk/Xk

5152:

55-028-5150 Brkt, Belly Pan - Pc 05-06 Jeep Wk/Xk
77-5152 Hardware Bag, 5152 Kit Grand Cherokee/Commander - (TAPE TO PLATE)

5154:

EGR Module, Jeep WK/XK 05-07

I can get you the first three parts (5150, 5151 & 5152) within one week in most cases. The EGR Module is ordered separately and takes longer to get but you do not need it at the time of the install and can plug it in later.