Hemi 5.7l v8 Rear Differential Cover ?

SoCal Bomber · Aug 3, 2019

Love it, breeze to install. Filled with Redline!

Octane · Aug 3, 2019

Fill plug is on right side of diff and drain plug lower down

Giulio A Grisetti · Oct 28, 2019

Octane said:
Fill plug is on right side of diff and drain plug lower down

I have some time today so I think I'm going to do my rear diff fluid change. Is this what you were talking about ?

16RamHemi · Oct 28, 2019

make sure you try to loosen your fill plug first. if that is locked tight and you have already drained the diff....not good

Pull Ya · Oct 28, 2019

^^^^^Excellent advise!!!
Jay

Giulio A Grisetti · Oct 28, 2019

16RamHemi said:
make sure you try to loosen your fill plug first. if that is locked tight and you have already drained the diff....not good

Awesome brother thanks for the tips, I appreciate yall help so much!

16RamHemi · Oct 28, 2019

Giulio A Grisetti said:
Awesome brother thanks for the tips, I appreciate yall help so much!

just passing it along. its a super easy thing to overlook until its too late.

Pull Ya · Oct 28, 2019

It reduces the chance of small children "helping" Dad from learning new words----LOL
Jay

Giulio A Grisetti · Oct 28, 2019

So yall would suggest the redline gear oil then ???

gypsy400 · Oct 28, 2019

Giulio A Grisetti said:
So yall would suggest the redline gear oil then ???

Nothing wrong with red line.. but imo not necessary.. any oil meeting the spec laid out in the owners manual will do. I do know from experience that synthetic oil does give more hp to the ground though. I've chassis dynoed semi trucks before, and the difference when both rear ends are filled with synthetic is 5hp, so on your 1500, that would equate to probably 0.5hp.

Sent from my SM-G903W using Tapatalk

Octane · Oct 29, 2019

Giulio A Grisetti said:
I have some time today so I think I'm going to do my rear diff fluid change. Is this what you were talking about ?

View attachment 184601

Yes

Octane · Oct 29, 2019

My 13 Ram has the rubber fill plug on other side and then it has that lower drain plug also here

Frontbutz · Dec 9, 2021

My 2015 Ram also has the rubber plug in the cover and a fill and drain. So do you fill to spill the rubber plug hole or the diff fill plug hole? The video I saw from a "professional" on youtube removed the fill plug first to make sure it would come out and not seized, but in the end he ended up filling the diff from the cover hole and didn't pull the threaded fill plug again, so what was the point removing it anyway. So do you use the cover hole to fill but remove the threaded fill plug and wait till it flows out or are they at the same level?

Dave DeMoss · Dec 9, 2021

My 2016 has a Mag-Hytec

GTyankee · Dec 9, 2021

Right near the drive shaft on the passenger side of 2012 Ram 9.25" differential housing
There is a threaded plug, if you take notice, that plug is on the same level as the axle tubes that extend out to wheels.
That is done so that a bit of lubricant is getting to the axle bearings most of the time.

( back around 2009 - 2012, Chrysler made a mistake & had the Fill Plug too low in the Carrier assembly housing
When they realized their mistake, they put out a recall on the Differential Covers, the new covers had a hole drilled them at the level that would allow fluid to bath the wheel bearings & rubber plugs were used to fill the new hole )

Meanwhile, Chrysler put out the word to dealerships & customers that the fluid level was too low & that there was a chance bearings were not getting lubed.
The fix was to remove the vent in the drivers side axle tube & add differential fluid through the vent, they gave the amount of fluid that should be needed.

I found something that i think pertains to the low diff fluid

SUBJECT:

Additional Rear Axle Fluid Needed
OVERVIEW:
This bulletin involves adding an additional 19 fluid oz. of rear axle lube and a 1 fluid oz. of
friction modifier to the rear differential.
MODELS:
2011 (DS) RAM 1500 Pick-up
2011 (DX) RAM TRUCK (Mexico)
NOTE: This Service Bulletin applies to vehicles equipped with a 3.21, 3.27, 3.55, 392
or 4.10 rear axle (Sales Code DMC, DML, DMD, DMH or DMF) built before
December 11, 2010 (MDH 1211XX).
DISCUSSION:
This Service Bulletin is being released as a preventative countermeasure to address an
axle durability condition.

........................................................................

with both of the Rams i have owned, a 2009 & 2016 Ram 1500s
i wanted a differential cover that was easy to service, so i had the Mag Hytec covers installed
Dipstick makes checking fluid level a breeze

Dodge #D 12-9.25

$295.00

ilovemyramlaremie · Dec 9, 2021

Just did my differential cover swap on my 2010 laremie. I bought the cover from a member here.

Bigskyroadglide · Dec 9, 2021

GTyankee said:
Right near the drive shaft on the passenger side of 2012 Ram 9.25" differential housing
There is a threaded plug, if you take notice, that plug is on the same level as the axle tubes that extend out to wheels.
That is done so that a bit of lubricant is getting to the axle bearings most of the time.

( back around 2009 - 2012, Chrysler made a mistake & had the Fill Plug too low in the Carrier assembly housing
When they realized their mistake, they put out a recall on the Differential Covers, the new covers had a hole drilled them at the level that would allow fluid to bath the wheel bearings & rubber plugs were used to fill the new hole )

Meanwhile, Chrysler put out the word to dealerships & customers that the fluid level was too low & that there was a chance bearings were not getting lubed.
The fix was to remove the vent in the drivers side axle tube & add differential fluid through the vent, they gave the amount of fluid that should be needed.

I found something that i think pertains to the low diff fluid

SUBJECT:

Additional Rear Axle Fluid Needed
OVERVIEW:
This bulletin involves adding an additional 19 fluid oz. of rear axle lube and a 1 fluid oz. of
friction modifier to the rear differential.
MODELS:
2011 (DS) RAM 1500 Pick-up
2011 (DX) RAM TRUCK (Mexico)
NOTE: This Service Bulletin applies to vehicles equipped with a 3.21, 3.27, 3.55, 392
or 4.10 rear axle (Sales Code DMC, DML, DMD, DMH or DMF) built before
December 11, 2010 (MDH 1211XX).
DISCUSSION:
This Service Bulletin is being released as a preventative countermeasure to address an
axle durability condition.

........................................................................

with both of the Rams i have owned, a 2009 & 2016 Ram 1500s
i wanted a differential cover that was easy to service, so i had the Mag Hytec covers installed
Dipstick makes checking fluid level a breeze

View attachment 479422
View attachment 479423

Dodge #D 12-9.25
$295.00

My 2011 was one of those trucks affected and dodge before they were ram, inspected the diff and if it showed signs of low fluid an was under warranty rebuilt the diff.

I know this cause they rebuilt my 2011 with 3.55s under the recall

DILLIGAF · Dec 9, 2021

Mopar1987 · Dec 24, 2021

I went with a PPE cover. Has a reservoir type lower but a curved portion for the rind gear like factory.

Hemi 5.7l v8 Rear Differential Cover ?

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