Recent Topics
Oil weight and Oil Grade
by Snagglefoot - 01/21/20 07:11 PM
Which air filter for RAV 4 Hybrid
by NH73 - 01/21/20 06:44 PM
Finding a good "cold weather" vehicle?
by Vern_in_IL - 01/21/20 06:15 PM
Bough NGK Ruthenium sparkplugs
by cronk - 01/21/20 06:07 PM
HF 30% Off $10 and Under
by TheLawnRanger - 01/21/20 06:02 PM
Stolen Battery-New one on Me
by bunnspecial - 01/21/20 05:29 PM
2006 Acura TSX Buying Advice
by maverickfhs - 01/21/20 04:35 PM
Castrol GTX Diesel 15W-40, CK4
by HDoilDude - 01/21/20 04:30 PM
Combo of P0068 and P307A
by Alfred_B - 01/21/20 04:30 PM
Are the plastic battery trays necessary?
by littlehulkster - 01/21/20 03:18 PM
Amsoil ATV/UTV Powertrain Fluid
by IowaFord - 01/21/20 02:13 PM
Motorcraft FL500s 3,630 miles.
by mpgo4th - 01/21/20 01:36 PM
Xcel Class Action Suit
by John_K - 01/21/20 12:33 PM
RV Freightliner Cummins ISB 6.7 oil question
by 1978elcamino - 01/21/20 11:48 AM
Why I became a pilot and not a doctor...
by jetman - 01/21/20 10:52 AM
Wrong oil or not ?
by M119 - 01/21/20 10:48 AM
30 monograde
by mpack88 - 01/21/20 10:15 AM
Extended life destroys copper?
by mpack88 - 01/21/20 09:49 AM
Newest Members
IowaFord, Origami99, reylafo, PastPresMike, RedBeard83
70497 Registered Users
Who's Online Now
134 registered members (4WD, 2010Civic, 53' Stude, 87sammy, AC1DD, 10 invisible), 2,419 guests, and 29 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums67
Topics300,411
Posts5,175,178
Members70,497
Most Online4,538
Jan 20th, 2020
Donate to BITOG
Print Thread
Hop To
Page 1 of 2 1 2
Differential sealing: gasket vs rtv #4096104 05/13/16 06:16 PM
Joined: Apr 2012
Posts: 2,978
B
buck91 Offline OP
OP Offline
B
Joined: Apr 2012
Posts: 2,978
Going to be rebuilding the traclok in the mustang this year as as well as putting an Eaton posi in the truck. Probably have a shop do the position, actually.

Anyways, since both are clutch type LSD I'm thinking about a reusable gasket for the dif covers to make subsequent fluid or dif services that much easier. Do these tend to work pretty well, assuming bolts are torqued to spec with thread locker? Or are leaks common enough to warrant rtv?


2011 F150 4x4 5.0L
1996 Mustang GT 5spd/ragtop
Re: Differential sealing: gasket vs rtv [Re: buck91] #4096108 05/13/16 06:20 PM
Joined: Nov 2013
Posts: 885
R
RedOakRanch Offline
Offline
R
Joined: Nov 2013
Posts: 885
I used one on my 10 bolt Chevy with a stamped cover. Worked good from day one until now. Haven't taken it off and reused it yet though.


1994 Ford Crown Vic 207k-Frankenbrew 0w20,30,40!
2005 Chevy 1500 Crewcab 4X4 180k-BC 0w30 $2/qt
2016 Outback 2.5 Limited 60k-shop brand?
Re: Differential sealing: gasket vs rtv [Re: buck91] #4096127 05/13/16 06:40 PM
Joined: Oct 2014
Posts: 14,332
C
CT8 Offline
Offline
C
Joined: Oct 2014
Posts: 14,332
A gasket if available makes servicing the unit as fun as servicing can be.


2015 F150 2.7
2018 F350 6.2
Re: Differential sealing: gasket vs rtv [Re: buck91] #4096133 05/13/16 06:48 PM
Joined: Mar 2010
Posts: 5,614
T
The_Eric Offline
Offline
T
Joined: Mar 2010
Posts: 5,614
RTV and drill/weld a fitting to drain.


2005 Lincoln Aviator 4.6 DOHC
2000 Honda Accord 2.3
2001 Hyundai Elantra 2.0
1979 Ford F-150 351M
Re: Differential sealing: gasket vs rtv [Re: buck91] #4096142 05/13/16 06:59 PM
Joined: Dec 2013
Posts: 2,130
B
barkingspider Offline
Offline
B
Joined: Dec 2013
Posts: 2,130
I prefer gasket or gasket with a lil bit of rtv on both sides of the gasket, zero problems. I have never used a reusable gasket


04 Avalanche Z71 4x4
Re: Differential sealing: gasket vs rtv [Re: buck91] #4096143 05/13/16 06:59 PM
Joined: Dec 2002
Posts: 43,506
J
JHZR2 Offline
Global Moderator
Offline
Global Moderator
J
Joined: Dec 2002
Posts: 43,506
I went gasket and mag hytec with Adrain and dipstick.

Originally Posted By: barkingspider
I prefer gasket or gasket with a lil bit of rtv on both sides of the gasket, zero problems. I have never used a reusable gasket


Isn't Indian head shellac the the product for that job?

Re: Differential sealing: gasket vs rtv [Re: CT8] #4096265 05/13/16 10:45 PM
Joined: Aug 2003
Posts: 14,376
R
Rand Online Content
Online Content
R
Joined: Aug 2003
Posts: 14,376
Originally Posted By: CT8
A gasket if available makes servicing the unit as fun as servicing can be.


Drain and fill plugs infinitely better.


2019 Jeep Cherokee Trailhawk 2.0T
2020 Hyundai Elantra "Value Edition"
Re: Differential sealing: gasket vs rtv [Re: buck91] #4096389 05/14/16 07:01 AM
Joined: Apr 2006
Posts: 9,672
0
01rangerxl Offline
Offline
0
Joined: Apr 2006
Posts: 9,672
I have been thinking of getting a Lube Locker gasket for my 8.8 equipped truck. They say they are reusable, but I don't know anyone who has used one.

I thought Ford used to have a reusable rubber gasket for the 8.8 in their performance parts catalog, but I can't find them now. It was probably over 10 years ago when I saw those.


2002 Ford Ranger XLT | 3.0 V6 Auto 2WD | 236K miles
1994 Ford Ranger STX | 4.0 V6 Manual 4X4 | 202K miles
1994 Ford Explorer XLT | 4.0 V6 Auto 4X4 | 254K miles
Re: Differential sealing: gasket vs rtv [Re: The_Eric] #4097440 05/15/16 12:50 PM
Joined: Aug 2004
Posts: 6,241
blupupher Offline
Offline
Joined: Aug 2004
Posts: 6,241
Originally Posted By: The_Eric
RTV and drill/weld a fitting to drain.

If it is something you plan on changing often (4x4 or boat tow rig that may have water infiltration) I would do that, but really, how often do people actually change their fluid? Most vehicles probably go a lifetime and never have a rear end fluid change.
Also, depending on the vehicle, you may have quite a bit left in the diff with just a drain plug. I know the 9.75 in my truck has at least 1 cup (if not more) of fluid in the bottom of the diff when I take the cover off, a drain plug would leave even more since it would not be at the very bottom of the cover.

I have always used RTV with no issues, just make sure the cover and housing are clean and dry before you start.


'18 Santa Fe: PP 10W-30/OEM
'18 Soul: Synpower 5W-30/PG
'10 Santa Fe: Synpower 5w-30/D+
'04 F150: Magnatec 10w-30/ST
'12 xB: M1EP 0W-20/CQ Blue
'02 F150: Magnatec 5W-20/D+
'94 VT1100: Peak 15W-40/D+
Re: Differential sealing: gasket vs rtv [Re: 01rangerxl] #4097444 05/15/16 12:59 PM
Joined: Jun 2005
Posts: 13,845
bdcardinal Online Content
Online Content
Joined: Jun 2005
Posts: 13,845
Originally Posted By: 01rangerxl
I have been thinking of getting a Lube Locker gasket for my 8.8 equipped truck. They say they are reusable, but I don't know anyone who has used one.

I thought Ford used to have a reusable rubber gasket for the 8.8 in their performance parts catalog, but I can't find them now. It was probably over 10 years ago when I saw those.


I have only seen the elastomeric gaskets on transmission pans. The FRPP diff covers I have ordered came with a gasket that was a thick rubbery paper style.


2014 Ford Mustang GT Track Pack
1995 Ford Mustang GT

Ford/Mazda Parts Counter
NRA Benefactor Member
Opinions expressed are my own.
Re: Differential sealing: gasket vs rtv [Re: buck91] #4098792 05/17/16 05:22 AM
Joined: May 2012
Posts: 6,773
DoubleWasp Offline
Offline
Joined: May 2012
Posts: 6,773
My Ram diffs have elastomeric gaskets, but I don't use them anymore after seeing how ineffective they are at keeping corrosion from working its way inward from the lip of the diff cover.

Gear oil RTV for me, and nothing else.


07 Lincoln Navigator M1 0w-40/FU
68 Charger R/T / Supercharged 440 VR1/DBL7349
07 Ram 3500 4x4 / Cummins 6.7 /DBL7349
17 Maserati GranTurismo Cabrio
Re: Differential sealing: gasket vs rtv [Re: buck91] #4099105 05/17/16 11:21 AM
Joined: Jan 2012
Posts: 382
N
nobb Offline
Offline
N
Joined: Jan 2012
Posts: 382
Using a gasket is a good idea, I think I'll get a bunch on my next RockAuto order. They are cheap anyways. I don't know why manufacturers cheap out on the drain plug. A 15 min drain/fill easily turns into a 2 hour job if RTV is involved.

Re: Differential sealing: gasket vs rtv [Re: bdcardinal] #4099457 05/17/16 05:34 PM
Joined: Apr 2006
Posts: 9,672
0
01rangerxl Offline
Offline
0
Joined: Apr 2006
Posts: 9,672
Originally Posted By: bdcardinal
Originally Posted By: 01rangerxl
I have been thinking of getting a Lube Locker gasket for my 8.8 equipped truck. They say they are reusable, but I don't know anyone who has used one.

I thought Ford used to have a reusable rubber gasket for the 8.8 in their performance parts catalog, but I can't find them now. It was probably over 10 years ago when I saw those.


I have only seen the elastomeric gaskets on transmission pans. The FRPP diff covers I have ordered came with a gasket that was a thick rubbery paper style.


I'm probably remembering it wrong...vague memory from a paper catalog about 12-13 years ago.

For the $25 or so, I will probably try a Lube Locker gasket next time and see how it does. I probably just need to go ahead and get a cover with a drain plug since the truck goes off road some (I wish more often).


2002 Ford Ranger XLT | 3.0 V6 Auto 2WD | 236K miles
1994 Ford Ranger STX | 4.0 V6 Manual 4X4 | 202K miles
1994 Ford Explorer XLT | 4.0 V6 Auto 4X4 | 254K miles
Re: Differential sealing: gasket vs rtv [Re: 01rangerxl] #4099943 05/18/16 07:52 AM
Joined: Sep 2010
Posts: 11,436
4WD Online Confused
Online Confused
Joined: Sep 2010
Posts: 11,436
Aftermarket covers up the odds of sealing with a gasket or sealer. I used G2 on an AAM860 (similar size) re useable gasket - and just dumped second time - held 3 qts Delvac Synthetic to the tattle tell plug level. Easy to drain/fill too ...
Only issue: The cap screws were about 3/16" short - so had to run to town ...

Re: Differential sealing: gasket vs rtv [Re: 4WD] #4099951 05/18/16 08:03 AM
Joined: Dec 2015
Posts: 261
C
Canadastang Offline
Offline
C
Joined: Dec 2015
Posts: 261
Bought a lubelocker gasket a couple years ago and haven't looked back.

Best $30 I ever spent.

Fill up the diff immediately, no waiting for RTV to cure.

Page 1 of 2 1 2
Previous Thread
Index
Next Thread

BOB IS THE OIL GUY® Powered by UBB.threads™