|
04-28-2010, 05:08 PM
|
#1 |
|
Registered User
Join Date: Aug 2009
Location: Tomball, TX
Posts: 578
|
diff oil
I tried the search button but nothing came up, so I thought I'd just ask. what oil is recommended for your differential? mine is an open diff with 373 gears, and I will be doing a good bit of heavy towing this summer if it makes a difference. thanks
__________________
'68 C10 LWB 6.2NA/NP833 3.73's |
|
|
|
04-28-2010, 05:30 PM
|
#2 |
|
Registered User
Join Date: Jun 2002
Location: Fort Worth, TX
Posts: 920
|
Re: diff oil
I literally just finished changing the oil in my 72. A multigrade, 80-140, will take care of it. I used a SWEPCO brand that is fantastic has moly in it as well.
|
|
|
|
|
04-28-2010, 05:46 PM
|
#3 |
|
Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
|
Re: diff oil
synthetic is bestest
i use royal purple or mbil one in everything i own//engine trannys and rears
__________________
71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
|
|
|
|
04-28-2010, 05:49 PM
|
#4 |
|
Registered User
Join Date: Oct 2005
Location: Overland Park, Ks.
Posts: 5,229
|
Re: diff oil
I agree with Bean. Any good gear lube with a GL5 rating will work fine. Some like the synthetic types but I don't think the added expense is nessesary & I like natural stuff.
|
|
|
|
|
04-28-2010, 07:32 PM
|
#5 |
|
20' Daredevil (Ret)
 
Join Date: May 2003
Location: Jefferson State
Posts: 13,728
|
Re: diff oil
You'll get opinions all over the map... No doubt dino is perfectly acceptable (I ran it for many years without issues), but I now prefer synthetic 75W-90 (Mobil-1, and I have also used Redline). Valid or not, my perception is better flow, resulting in lower rolling resistance when cold, and better lubrication if very hot or at high pressures.
__________________
- Mike - 1972 K20 LWB 350/350/205 RIP El Jay |
|
|
|
|
04-28-2010, 07:40 PM
|
#6 | |
|
just can't cover up my redneck
Join Date: May 2004
Location: Columbus OH
Posts: 11,414
|
Re: diff oil
I am definately a believer in synthetics. They run much cooler, which is far better for everything inside the housing.
__________________
You can review the site's rules here. Quote:
Bad planning on your part does not necessarily constitute an instant emergency on my part.... The great thing about being a pessimist is that you are either pleasantly surprised or right. 
|
|
|
|
|
|
04-28-2010, 07:41 PM
|
#7 |
|
Registered User
Join Date: Jan 2006
Location: Take Off
Posts: 1,908
|
Re: diff oil
I don't like synthetic. It's unnecessary, costs too much and can lead to leaks. The synthetic has a bad habit of leaking out when there was no leak before.
|
|
|
|
|
04-28-2010, 07:46 PM
|
#8 |
|
Registered User
Join Date: May 2009
Location: Eliot, Maine
Posts: 1,314
|
Re: diff oil
i have royal purple manual trans fluid in the saginaw (3onthetree) in my 72 burb 3/4 ton 2wd. going to put royal purple 75w-90 in the HO52 rear when i get the 4.10 swap done in the next couple weeks. fresh oil is better than nothing, but people don't realize how much heat/wear rear ends are subjected to and synthetic makes sense. mobil 1 and supertech (walmart brand) have cheaper synthetic gear oils but i'll be working my truck hard with trailer towing. it will be getting royal purple engine oil when i get the 406sbc swapped in but right now it has mobil 1 high mileage 10w-30 in the stock 74,000 original mile 307.
|
|
|
|
|
04-29-2010, 12:51 AM
|
#9 |
|
Registered User
Join Date: Aug 2009
Location: Tomball, TX
Posts: 578
|
Re: diff oil
thanks for the input yall, how much oil will go into these things?
__________________
'68 C10 LWB 6.2NA/NP833 3.73's |
|
|
|
|
04-29-2010, 04:52 AM
|
#10 |
|
Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
|
Re: diff oil
a bit less than 2quarts for a rearend
__________________
71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
|
|
|
 |
| Bookmarks |
| Thread Tools | |
| Display Modes | |
|
|
Linear Mode
