OK here goes This is for a frontier which is basicly the same as an Xterra this will work on most CrewCabs and DR's also. Cost that depends on how deep your pockets are I rebuilt most if not all parts with everyone SASing parts are cheeper now.I can not find all my paper work but ballpark I have about 2500-3K in it.

Parts List

1.Front diff = Had to buy all the mounting hardware new.
2. SLR Diff Drop Kit 150.00+ shipping (An Option)
3 Half shaft’s= Had to buy new mounting hardware
4 Knuckle’s = Replace rear seal
5 Rotors/ = Had rotors resurfaced and Replaced all seals and Bearings
6 Calipers rebuilt them and new Pads
7 Auto Hubs =Had to replace missing the C-clip and Star washer =18.00 Dealer
8 Warn Prem. Hubs =150.00 (an option)
9 The hub itself I had to replace 1 with new.= Hub 116.00 Dealer
10 Calmini Steering (An Option) package deal when I bought other parts
Also did mod to Idler arm 150.00
11 Replaced all Tie Rod ends. (not really needed but did it)
12 Transfer Case = Drained oil and replaced 200.00 from Ebay
13 Transmission = Drained oil and replaced filter = Filter kit 27.00=540.00 for the Transmission
14 Transmission cross member
15 Rear Transmission mount =50.00 From Dealer
16 Rear Drive shaft and Front drive shaft= Rear Drive shaft 130.00
17 Full skids= Skidrow skidplate = An option 540.00 from AC
18 LSD Mod to change slip tourq from 135+/- Ft Pounds to 230-260 FT pounds. 100.00
19. Shrockworks sliders 380.00

The things I still need/want
1.Front Bumper of some type
2.Winch
3.Rear or Ft.Locker