|
|
|
|
Joined: Sep 2002
Posts: 359
Backyard Mechanic
|
OP
Backyard Mechanic
Joined: Sep 2002
Posts: 359 |
Okay, bear with me - it's been more than 30 years since I changed the oil in an old Chevy rear differential. Just want to be sure I'm not overlooking something - I need to pull the inspection cover on my 39 Mstr Dlx to drain it, right?
Also, it was mentioned in another posting that all major brands of gear oil these days are good for hypoid gears. However, when I read the back of some containers, some say to use only for top-off of limited slip gears. Do I need to be concerned about that and pick a different brand?
|
|
|
|
|
Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
|
|
ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
Its is not necessary to remove the cover. Juse remove the two lower cover bolts. Best done when gear oil is warm and flows better. Also remove the filler plug to allow air to enter.
I would recommend using 85W-140 and all brands are OK. The limited slip gear oil has an anti-friction additive to prevent clutch plate chatter in the limited slip differentials. There is no reason it could not be used in all but generally cost more and is not necessary.
Gene Schneider
|
|
|
|
|
Joined: Sep 2002
Posts: 359
Backyard Mechanic
|
|
OP
Backyard Mechanic
Joined: Sep 2002
Posts: 359 |
Thanks, Gene - really do appreciate the guidance. Take care!
|
|
|
|
|
Joined: Aug 2008
Posts: 415
Backyard Mechanic
|
|
Backyard Mechanic
Joined: Aug 2008
Posts: 415 |
Hey, Ralph or Gene;
How many quarts of 85-140wt does it take to change the rear end oil?
________________________
THANK's JOE.
|
|
|
|
|
Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
|
|
ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
The 1937-1954 differentials hold 1 and 1/2 Qts....so buy 2 Qts.
Gene Schneider
|
|
|
|
|
Joined: Aug 2008
Posts: 415
Backyard Mechanic
|
|
Backyard Mechanic
Joined: Aug 2008
Posts: 415 |
Thank's Gene!
____________
Joe's 37
|
|
|
|
|
|
|
