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Differential service ?? #3130379
03/18/23 03:35 PM
03/18/23 03:35 PM
Joined: Jan 2003
Posts: 8,463
Candler,NC / Myrtle Beach, SC
J
JDMopar Offline OP
master
JDMopar  Offline OP
master
J

Joined: Jan 2003
Posts: 8,463
Candler,NC / Myrtle Beach, SC
Hey all. Planning to replace the differential oil in my 2004 Dakota. My question is, does the pop in rubber or plastic plug on the diff cover come out pretty easy? I would rather just remove that plug, pump the old oil out and pour new in since I don't have any leaks. I just fear that the plug will break the inside part off and it will fall down into the case and I'll have to replace both it and the gasket. I just wanted to see if others had successfully removed the plug without destroying it.

Thanks in advance! wave

Re: Differential service ?? [Re: JDMopar] #3130414
03/18/23 06:41 PM
03/18/23 06:41 PM
Joined: Jan 2008
Posts: 2,168
ILLINOIS
V
volaredon Offline
top fuel
volaredon  Offline
top fuel
V

Joined: Jan 2008
Posts: 2,168
ILLINOIS
I don't sweat it. I've never had that happen.
Just unbolt it and clean it out the right way.
I usually blow thru 2 cans or so of brake clean on every rear diff lube change as well.
And if there is a gasket available I use it. Not a huge fan of RTV. Never have been. And I have no issues with leakage.

Re: Differential service ?? [Re: volaredon] #3130422
03/18/23 07:28 PM
03/18/23 07:28 PM
Joined: Jan 2011
Posts: 15,529
Central Florida
larrymopar360 Offline
Stud Muffin
larrymopar360  Offline
Stud Muffin

Joined: Jan 2011
Posts: 15,529
Central Florida
The older those plugs the more difficult they are to deal with but I doubt it'll drop in. But I'm also one that thinks you should pop the cover off and you won't have any leaks. They aren't like rear mains that are difficult to get sealed. It's so much better being able to really wipe out the bottom of the case and get all the fluid out. I've found some nice inexpensive pumps for refills at Home Depot. up


Facts are stubborn things.
Re: Differential service ?? [Re: larrymopar360] #3130635
03/19/23 06:02 PM
03/19/23 06:02 PM
Joined: Jul 2009
Posts: 788
massachusetts U.S.A.
1
1969ronnie Offline
super stock
1969ronnie  Offline
super stock
1

Joined: Jul 2009
Posts: 788
massachusetts U.S.A.
wave Hi JD , Just Serviced a 1998 9.25 Axle last week . There was SO much RTV oozing around the cover , I knew it was going to be BAD . 3 Colors of RTV , Black , Greay , and Final was Red . The Cover Bolt Holes were SO packed , that HALF the Cover bolts had 1/16" between the Bolt head and the Cover , and Bolts were SO tight to prevent Leaks or Weeping , that the Bolts were Ready to Snap Off ! Plus the Rocket Scientist that Did the Job before Me , Threw away the GOOD MOPAR Cover Plug , Part # 52070428AA , and Installed some Chinese JUNK Dorman Plug Part # 65340 . The Dorman Plug has HALF the Rubber Thickness , and WRONG Durometer , It's TOO Soft and Mushy VS the Mopar PLUG . Plus the Dorman Plug "Nipple" that Snaps into Rear Cover , and keeps it from Falling Out is Also NOT as Strong or as Well Built to REALLY HOLD , as the Mopar Plug . Especially when Gear Oil gets to 200 Degrees ! I knew when the Dorman Plug was RTV'd all over the OUTSIDE to Keep it from Falling Off and Glued into Place , I was In TROUBLE ! Hardest part of Job was digging 3 Layers of RTV out of Bolt Holes . NO RTV for Me . FEL-PRO Gasket Only . And I Had an Extra MOPAR 52070428AA Cover Plug , Made in USA to put in his hand , to compare the Junk China Mada , Dorman Cover Plug . drive and Wiping and Cleaning the MAGNET in the bottom of the Case was SIMPLE , with NO Cover in the Way ! . Take Cover OFF , and Do Job Right . wrench Ronnie







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