I am: Bob .
Join Date: Nov 2004
Vehicle: 2003 Ford Ranger
Drive Type: 4x4
Total Props: 19
4.0's and 4x4's get the 8.8 axle. Others are 7.5 except:
All Edges got the 8.8 from sometime in 2002 through 2005, regardless of engine and drive.
2006/7 Sports (the renamed Edge) continue to use it too.
The 2000 Trailhead had the 3.0L and 8.8.
2002 FX4's and 2003+ Level II's also have an 8.8 axle assembly but it is a heavier duty version with larger axle shafts, axle tubes and bearings. It comes with a Torsen L/S.
There may be differences for earlier Rangers but the above should be accurate for at least the last 15 years.
2003 FX4 Level II, Supercharged 5.0L V8, Headers,Duals 4R70W auto, BW4406 manual T/C
Aussie Locker, Torsen L/S, 4.10's, Bilstein 7100 rezzies, Cadillac/Mustang rear discs, Duff traction bars
Keypad Entry, Lock LEDs, ABS switch, sway bar discos, Heated seats, Explorer EATC, Trip Computer and consoles
5.0L V8 swap: Click
2003 XLT 2.3L M5OD-R1 reg cab beater, 2011 Taurus SEL, 2016 C-MAX Energi Plug-in Hybrid