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aluminum diff cover #4586947
11/27/17 07:30 PM
11/27/17 07:30 PM
Joined: Feb 2011
Posts: 1,261
Golden Meadow, LA
mobilaltima Offline OP
mobilaltima  Offline OP
Joined: Feb 2011
Posts: 1,261
Golden Meadow, LA
I plan on installing one of the factory '08 diff covers on my 99 7.3, straight bolt on any 10.5 Ford rear end. My question is, does anyone know the torque for the bolts? Also should I use the silicone Diesel Manor provides, or should I use a Lube Locker gasket? The cover has a groove for the silicone, but I was leaning towards the gasket. Thanks.

http://www.dieselmanor.com/motorcraft/FD-3Z4033A.htm

https://www.lubelocker.com/inventory/llr-fordsterling-1025105


2006 2500 Dodge 5.9 Cummins Mobil Delvac 15W40, Fleetguard Stratapore 90k miles
Early '99 F250 ECLB 7.3 Stroker, 223k miles
Re: aluminum diff cover [Re: mobilaltima] #4586960
11/27/17 07:41 PM
11/27/17 07:41 PM
Joined: Sep 2010
Posts: 7,594
Planet Earth
2015_PSD Offline
2015_PSD  Offline
Joined: Sep 2010
Posts: 7,594
Planet Earth
This one from Mag Hytec states 12-16 lb-ft:



I would use silicone in a tube to form a gasket in the groove.

Re: aluminum diff cover [Re: mobilaltima] #4586965
11/27/17 07:44 PM
11/27/17 07:44 PM
Joined: Aug 2008
Posts: 21,310
ON, Canada eh?
StevieC Offline
StevieC  Offline
Joined: Aug 2008
Posts: 21,310
ON, Canada eh?
I have never torqued bolts for a diff cover. I have always tightened them with a ratchet with minimal light pressure in a cross pattern and then snugged them down 1/2 turn to 1 full turn using a fist on the ratchet handle sort of thing. Never had a leak.

As for the silicone I like Permatex Grey Gasket Maker. I use it on all pans / covers like this. Just make sure the surface is good and clean / oil free and give it some time to set up before you refill. My transmission oil pan is practically vertical so if it's going to leak it would on my Journey and it's dry.


Last edited by StevieC; 11/27/17 07:47 PM.

'18 Dodge Grand Caravan GT - AMSOIL SS 5w20
'06 Santa Fe - 535,000km AMSOIL SS 0w30 / ATF
Re: aluminum diff cover [Re: mobilaltima] #4586987
11/27/17 08:05 PM
11/27/17 08:05 PM
Joined: Sep 2015
Posts: 6,075
Kalifornia Kollective
BrocLuno Offline
BrocLuno  Offline
Joined: Sep 2015
Posts: 6,075
Kalifornia Kollective
I f you want to use the gasket, I like YamaBond gasket adhesive. Or, Hylomar - either is readily available and both work well smile


Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.
Re: aluminum diff cover [Re: mobilaltima] #4586989
11/27/17 08:05 PM
11/27/17 08:05 PM
Joined: Jun 2003
Posts: 17,820
Deplorable in apple valley, ca
Chris142 Offline
Chris142  Offline
Joined: Jun 2003
Posts: 17,820
Deplorable in apple valley, ca
Same as steviec. I have never torqued the bolts on a diff cover. I prefer mega grey sealer myself but any ultra grey or ultra black will be fine.


02 Wrangler carlube 5w30
87 F250 traveler 15w40
07 fjcruiser Chevron 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40
Re: aluminum diff cover [Re: mobilaltima] #4586998
11/27/17 08:12 PM
11/27/17 08:12 PM
Joined: Sep 2010
Posts: 7,496
Texas & Global
4WD Offline
4WD  Offline
Joined: Sep 2010
Posts: 7,496
Texas & Global
I put the G2 on with my factory gasket but since it is now a stiff and fully machined mating ~ all appropriate silicone works = if you give them time to cure etc


2018 Chevy 1500 Z71 4WD
2017 Chevy Tahoe LT 4WD
2014 Fusion Hybrid Titanium
2013 Cruze LTZ - RS Turbo
Re: aluminum diff cover [Re: mobilaltima] #4587029
11/27/17 08:46 PM
11/27/17 08:46 PM
Joined: Dec 2013
Posts: 2,450
Fort Worth, Texas
clinebarger Offline
clinebarger  Offline
Joined: Dec 2013
Posts: 2,450
Fort Worth, Texas
I also use Ultra Grey on differential covers. The Lube Locker is a good idea if you have to pull the cover to drain the gear oil....It's the only gasket I've seen work on flat flange Dana covers.


2001 Chevy Camaro L92/4L80E
2006 Chevy 2500HD LBZ/Allison 1000
2010 Toyota Corolla 2ZR-FE/U341E
2000 Toyota Avalon 1MZ-FE/A541E
Re: aluminum diff cover [Re: StevieC] #4587061
11/27/17 09:30 PM
11/27/17 09:30 PM
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Merkava_4 Offline
Merkava_4  Offline
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Originally Posted By: StevieC
As for the silicone I like Permatex Grey Gasket Maker.


Do you leave it as a bead, or do you butter it ?

Re: aluminum diff cover [Re: mobilaltima] #4587066
11/27/17 09:36 PM
11/27/17 09:36 PM
Joined: Aug 2008
Posts: 21,310
ON, Canada eh?
StevieC Offline
StevieC  Offline
Joined: Aug 2008
Posts: 21,310
ON, Canada eh?
I put on a thin bead that I know will flatten into place without leaving heaps of it in whatever I'm sealing. I might work it a little bit around the bolt holes here/there but that's it.


'18 Dodge Grand Caravan GT - AMSOIL SS 5w20
'06 Santa Fe - 535,000km AMSOIL SS 0w30 / ATF
Re: aluminum diff cover [Re: StevieC] #4587078
11/27/17 09:57 PM
11/27/17 09:57 PM
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Merkava_4 Offline
Merkava_4  Offline
Joined: Jan 2007
Posts: 17,501
Clovis, CA
I can never get a uniform bead with a squeeze tube. I have to use a cartridge and a caulking gun if I want a uniform bead. When I'm using a squeeze tube, I end up spreading it like butter.

Re: aluminum diff cover [Re: BrocLuno] #4587091
11/27/17 10:12 PM
11/27/17 10:12 PM
Joined: Aug 2006
Posts: 9,887
Central Washington
Colt45ws Offline
Colt45ws  Offline
Joined: Aug 2006
Posts: 9,887
Central Washington
Originally Posted By: BrocLuno
I f you want to use the gasket, I like YamaBond gasket adhesive. Or, Hylomar - either is readily available and both work well smile

I really wanna try this Hylomar stuff some day. It just worked out I heard of it right after I bought a caulk gun type tube of grey RTV and so Im still working my way through that.


-Colton
2002 Ford Crown Vic PI 207k, Ex-Kootenai County, ID Unit #42
Down for engine swap
2003 Ford Crown Vic PI 75k
Castrol EDGE HM 5W30, Fram XG2
Re: aluminum diff cover [Re: Colt45ws] #4587131
11/27/17 11:49 PM
11/27/17 11:49 PM
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Merkava_4 Offline
Merkava_4  Offline
Joined: Jan 2007
Posts: 17,501
Clovis, CA
Originally Posted By: Colt45ws
I really wanna try this Hylomar stuff some day. It just worked out I heard of it right after I bought a caulk gun type tube of grey RTV and so Im still working my way through that.


What I want to try is that Permatex Right Stuff. I know it's an aerosol and it pushes out the sealant, but I'm curious about how fast it comes out and how easy it is to keep a uniform bead width.

Re: aluminum diff cover [Re: Merkava_4] #4587133
11/27/17 11:54 PM
11/27/17 11:54 PM
Joined: Aug 2006
Posts: 9,887
Central Washington
Colt45ws Offline
Colt45ws  Offline
Joined: Aug 2006
Posts: 9,887
Central Washington
Originally Posted By: Merkava_4
Originally Posted By: Colt45ws
I really wanna try this Hylomar stuff some day. It just worked out I heard of it right after I bought a caulk gun type tube of grey RTV and so Im still working my way through that.


What I want to try is that Permatex Right Stuff. I know it's an aerosol and it pushes out the sealant, but I'm curious about how fast it comes out and how easy it is to keep a uniform bead width.

I have right stuff in the tube.
As far as the aerosol type, those are easy to work with. We have them at work.


-Colton
2002 Ford Crown Vic PI 207k, Ex-Kootenai County, ID Unit #42
Down for engine swap
2003 Ford Crown Vic PI 75k
Castrol EDGE HM 5W30, Fram XG2
Re: aluminum diff cover [Re: mobilaltima] #4587145
11/28/17 12:36 AM
11/28/17 12:36 AM
Joined: Oct 2004
Posts: 3,183
Midwest, Illinois
beanoil Offline
beanoil  Offline
Joined: Oct 2004
Posts: 3,183
Midwest, Illinois
FelPro gasket.
The Ford cover will not come with bolts. The ones from your steelie are too short.
ARP makes some replacements. P/N 612-1250


beanoil: Tough under heat, real dirty afterwards.
Re: aluminum diff cover [Re: mobilaltima] #4587317
11/28/17 08:34 AM
11/28/17 08:34 AM
Joined: Sep 2017
Posts: 311
One Step Beyond
MasterSolenoid Offline
MasterSolenoid  Offline
Joined: Sep 2017
Posts: 311
One Step Beyond
I've never had the opportunity to use Hylomar, but it has been spoken of highly on this site.
I like using Permatex Ultra Black.
Use any good product and then your concern will be prep work and applying / read the instructions.



2002 Ford Ranger
2 Wheel Drive
3.0 Liter Engine
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