Skip to main content

Remove Differential Cover and Drain Fluid

3:55
25:05
36.7K views

At 3:55 in

Getting Turbo Yukon "Uncle Rob" Ready For Rocky Mountain Race Week! Posi Diff Install PT1: Tear Down

What happens here

The highly rusted differential cover bolts are removed. Due to severe corrosion, standard 13mm sockets do not fit, requiring the use of a 12mm socket hammered onto the bolt heads for a secure grip. The bolts are carefully tapped on straight to avoid stripping. Once all bolts are loosened, the cover is pried off with a pry bar to drain the old, dark differential fluid into a drain pan. A rag is used to wipe away excess fluid. An impact driver is also used for bolt removal.

Goal: Access the differential internals and remove old fluid.

Tools and materials

  • 12mm Socket — Removing severely rusted 13mm differential cover bolts, Drain Pan Unknown
  • Clean Rag — Wiping away excess fluid and cleaning surfaces

What they say

Hide

you just kind of like push on the top and then pull them and they'll come off hold the parking brake cable we can start getting these off i think i'm gonna do these by hand gently because they look um bad i wonder if you could poke through this these diff cover bolts are so bad that a 13-millimeter socket doesn't even grab them it's pretty sure they're 13-millimeter bolts so i'm using a 12-millimeter socket and i'm tapping it onto the head with a hammer because probably the first half of the shoulder is not 13 anymore but the bottom still is so it's like tapered i if i just try to do it it just rounds off this is the only way you can get them out so doing them one at a time very slowly very carefully to not have any unnecessary issues having to get these bolts out they're not terrible once they start moving but getting that socket on there not easy here i'll do this one here here's my workbench this little mount right there i got a system now i'm kind of knocking the little pieces off with my fingers before i go in there see it's not even feeling it on the socket so i'm just kind of like lining up okay there's a flat there's a flat it'll find its way and make sure it's the whole way on there and it's not tapped on crooked because you'll round it off that way too and you minimize busted knuckles by putting your body weight into stuff and not so much pushing like i had that i had it real close to me so i could just lean into it so when it broke where am i gonna go it's all of this but if i'm out here and i'm pushing on something as hard as i can when it breaks there's there's no body mass behind me to stop me from punching something and ruining my hand so use your body weight to your advantage people something i've learned when i first started working on cars i smashed my fingers on stuff all the time because i thought i could just pull on things yeah you would have had a lot of fun picking the rust off here look how big that one piece is i rubbed on it with that rag but it didn't get any of it oops solid oh they're all loose we can get them out now you don't have to make sure like they're already you know they're not in any danger of spinning off it's stuck you can thread it back in a little bit and then put the thing on there and wiggle it or just beat the heck out of it i just don't let her figure it out huh i said i'm just gonna let you figure it out because i know you're gonna figure it out and you don't want me to figure it out i wonder how much gearly…

Auto-generated from the video audio.