![]() |
Register or Log In To remove these advertisements. |
|
|
![]() |
|
Thread Tools | Display Modes |
![]() |
#1 |
Registered User
Join Date: Dec 2006
Location: Baytown, Texas
Posts: 194
|
Differential ?? for a 71 C-10
Ok I consider myself a pretty good shade tree mechanic but I have never changed out the oil from a differential, I need to change out the oil in my 71 C-10, can someone please give me some advice on how to change it out and how to re fill it.
Thanks.
__________________
1971 C-10 2004 Yukon: 1998 Honda Accord 2008 Honda Civic 2004 HD V-Rod http://67-72chevytrucks.com/vboard/s...d.php?t=226458 |
![]() |
![]() |
![]() |
#2 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
|
Re: Differential ?? for a 71 C-10
place shallow pan under diff
loosen all bolts on cover, while not removing them. Start at the bottom and work your way to the top insert screwdriver or rigid putty knife inbetween cover and diff cuss and wipe smelly oil off of screwdriver/scraper and hand Once it is done barfing the offending odor/oil, remove bolts and cover. Scrape oil soaked gasket off diff and cover wipe out the bottom of the diff with a rag *NOT WITH YOUR FINGERS* there may be sharp metal in there. install gasket, or real good sealant (I recomend no gasket, and use The Right Stuff sealant) on cover, let sealant tack up good if you went that route Install cover, remembering the bolt in the one O'clock position gets the bracket with the brake line in it. On the front side of the diff, passenger side towards the center, just below the webbing that is 1/2 way up, chissel through the caked on crap, and you'll see a pipe plug with a 3/8 inch square recessed area. Put a 3/8 inch drive 6 or so inch extention in there, and remove the plug. Fill with desired gear oil. 80/90 conventional, or the prefered, but expensive synthetic 75/140 untill it dribbles out the fill plug. replace plug and clean up your mess. Last edited by Longhorn Man; 05-10-2008 at 06:10 AM. |
![]() |
![]() |
![]() |
#3 |
Engine n00b
Join Date: Feb 2008
Location: Austin
Posts: 1,031
|
Re: Differential ?? for a 71 C-10
Thanks Longhorn - I need to suck it up and do this sometime VERY soon. Recommended place to get the sealant? Any ole Vatozone?
|
![]() |
![]() |
![]() |
#4 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
|
Re: Differential ?? for a 71 C-10
I dunno if they would have The Right Stuff... I get 99% of my stuff from NAPA. It's real easy to get real lazy... they'll deliver it to me and place it on my tool box.
|
![]() |
![]() |
![]() |
#5 |
Registered User
Join Date: Dec 2006
Location: Baytown, Texas
Posts: 194
|
Re: Differential ?? for a 71 C-10
Thanks Mr Longhorn Man, thats just what I needed, is that little hose on top of the differential a vent? Mine is plugged. I'll have to replace it.
__________________
1971 C-10 2004 Yukon: 1998 Honda Accord 2008 Honda Civic 2004 HD V-Rod http://67-72chevytrucks.com/vboard/s...d.php?t=226458 |
![]() |
![]() |
![]() |
#6 |
Senior Member
![]() Join Date: Apr 2008
Location: Franklinton NC
Posts: 1,309
|
Re: Differential ?? for a 71 C-10
Yes it is a vent.It should be a hose with a little "vent cap"on it.
|
![]() |
![]() |
![]() |
#7 |
Registered User
Join Date: Oct 2006
Location: Arizona
Posts: 835
|
Re: Differential ?? for a 71 C-10
You are making it sound like there is an issue back there. Just an FYI, but if your rear is making noise, changing the oil won't fix this... ask me how I know...
__________________
67 Short Step, 355, 700R 4.11 posi rear, 4/6 drop Discs on all 4 corners. Build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=219094 Last edited by whatnow123; 05-10-2008 at 06:20 PM. |
![]() |
![]() |
![]() |
#8 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
|
Re: Differential ?? for a 71 C-10
I was thinking that was the brake line T fitting... it's been a while since I did this.
|
![]() |
![]() |
![]() |
#9 |
Engine n00b
Join Date: Feb 2008
Location: Austin
Posts: 1,031
|
Re: Differential ?? for a 71 C-10
|
![]() |
![]() |
![]() |
Bookmarks |
|
|