I broke the differential in my 1997 Discovery 1, and as I got further into the repair, the project snowballed. In this video, I go into the details of setting up the rear Terrafirma TF450 e-locker and Ashcroft HD gears.

00:00 - Intro
00:25 - Disassembly
02:04 - The Damage
02:37 - Stripping the Housing
06:00 - Dummy Bearing Races
06:42 - Drilling Housing for Wiring
07:45 - The New Parts and Why I Chose Them
09:23 - Pressing Bearings
10:41 - Installing Ring Gear
14:15 - Pinion Height
19:24 - Pinion Preload
21:15 - Backlash and Gear Mesh
26:20 - Outro


In Part 2, I'll install it in the Disco, along with the Ashcroft ATB and Ashcroft HD 4.37 gears in the front.