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A few Dana 60 questions
#1596709
03/22/14 04:17 PM
03/22/14 04:17 PM
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Joined: Feb 2005
Posts: 20,178
PA.
pittsburghracer
OP
"Little"John
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OP
"Little"John
Joined: Feb 2005
Posts: 20,178
PA.
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I have a problem with axle leaks on the Dana 60 in my Duster about every other year. I always use "Right Stuff" silicon sealer on the axle flanges as I was sold on this stuff when I saw some things we used this stuff on in the steel mill. Just checking to see approximately how many pints of gear lube you guys are using and if you rearends have a vent on them. Mine does not. If you guys are using a vent were was it installed and where did you buy it from. Thanks.
1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27
Livin and lovin life one day at a time
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Re: A few Dana 60 questions
[Re: 10sec440]
#1596712
03/22/14 05:07 PM
03/22/14 05:07 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Yes you should have a vent, that's probably why its leaking. IMO
Yep... the heat is expanding the air so it has to
go somewhere and the seals are the easiest point of
exit.. just happens to have fluid with it on the way out
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Re: A few Dana 60 questions
[Re: 10sec440]
#1596713
03/22/14 05:17 PM
03/22/14 05:17 PM
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Joined: May 2003
Posts: 1,751
Graham, WA
Polarapete
top fuel
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top fuel
Joined: May 2003
Posts: 1,751
Graham, WA
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Is the leak coming from where the axle tube is pressed into the cast steel center? If so, you can weld the center to the tubes with 7018 rod and your arc welder. I had the same problem years ago with an OEM Dana 60 that I was using in my '68 Coronet even though it had a vent. Of course, back then I filled it to the plug level. The last two D60s that I built, I welded the tubes and there is no problem with it other than making sure that the weld area is clean enough...use PB blaster with a small wire brush followed by carb cleaner until it rinses clean. I always thought the centers were cast iron, but they are cast steel and the plug welds that hold the tubes are allowing flex and a direct path for gearlube to weep out. Bulk 7018 is meant to be kept in an oven for industrial use, but you can buy 1# sealed packages of it almost anywhere and if you use it immediately there is no contamination. When building a new D60, weld the tubes first, then narrow and jig it so that the final product is straight all the way. 
1986 Dodge Ramcharger 440 2wd, Bracket Racer Under Construction
1998 Ram 2500 QuadCab, new daily driver.
2008 Honda Element
2014 Carry-On 7x14 Cargo Trailer
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Re: A few Dana 60 questions
[Re: Polarapete]
#1596714
03/22/14 05:38 PM
03/22/14 05:38 PM
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Joined: Feb 2005
Posts: 20,178
PA.
pittsburghracer
OP
"Little"John
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OP
"Little"John
Joined: Feb 2005
Posts: 20,178
PA.
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I probably won't get to dive into it till early next week but the last couple of times it was just leaking from the plate behind the sealed bearings. There are no axle seals on this and the welds aren't leaking. As soon as I pull the axles and reseal the axle plates it is usually leak-free for a year. i know that some of the old brake line mounts had a seal but this rearend is lacking one. How much gear lube are you guys using?
1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27
Livin and lovin life one day at a time
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Re: A few Dana 60 questions
[Re: pittsburghracer]
#1596718
03/22/14 07:00 PM
03/22/14 07:00 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Make sure you put it in the tube near the cast area of the housing... you dont want it in the area that gets oil slung up on the vent
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Re: A few Dana 60 questions
[Re: B G Racing]
#1596719
03/22/14 07:02 PM
03/22/14 07:02 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
John install the vent on the axle tube away from the oil in the ring gear area.Generally Dana 60 auto and light truck will hold 3.5 qts.We usually fill to just below the axle tube. 
Ya treed me Bob
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Re: A few Dana 60 questions
[Re: pittsburghracer]
#1596720
03/22/14 11:33 PM
03/22/14 11:33 PM
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Joined: Aug 2003
Posts: 43,200
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,200
Bend,OR USA
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My current car had a Dana 60 with one of the Ultimate covers with no vent, it had a 1/8 inch NPT brass plug above the passenger side of the spool at the top of the cover so I put a 1/8 brass NPT pipe nipple in there and added some neopreme flexable tubing so it, the top of it, is higher than the top of the Dana now to vent it It has the Mark Williams 40 spline axles and aluminum spool and all the other M.W. good stuff, why it didn't have a vent is a mystery to me, it did not leak or weep, even with 5.86 gears in it at 7700 RPM in high gear   Years ago at one of the Mopar drag seminars they recommended using one quart of rear end lube only in both the 8 3/4 and the Dana 60 for drag racing, they said, Tom Hoover or L.S, CRS, that the production fluid levels was set so high to help keep the noise down for the average car buyer  I ran one quart for a lot of years in both my Dana 60 and 8 3/4, even with posi uits in both I did put 5 pints in the current car, it had the synthetic Redline lightweight green shock proof gear oil in it so I bought 2 new gallons of that and used it  I bought some of the synthetic Redline high strength shock proof red heavier weight also but I stuck it in the car trailer for future use, if needed
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: A few Dana 60 questions
[Re: Cab_Burge]
#1596721
03/22/14 11:46 PM
03/22/14 11:46 PM
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Joined: Jan 2003
Posts: 1,490
smyrna,tn
draginmopars
pro stock
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pro stock
Joined: Jan 2003
Posts: 1,490
smyrna,tn
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interesting- 1 Qt.
we are putting the rear back under the dart with a spool
I'll put a bore scope in there to see where the level is at.
Ha-Ha Racin
Havin Fun 101
Howard
68 "Cummins" Satellite
70 W-2 449 "More Door" Dart
70 340 Dart Swinger, 4spd
71 360 Dart Swinger
72 540/ 518 Dart Swinger
73 airwolf 446/a-500 Cuda
73 "Cummins" Crew cab-car hauler
84 446 Dodge Rampage (tube chassis)
92 CTD 11' flat bed
92 CTD club cab
07 Dodge Caliber
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Re: A few Dana 60 questions
[Re: Cab_Burge]
#1596722
03/22/14 11:50 PM
03/22/14 11:50 PM
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Joined: Feb 2005
Posts: 20,178
PA.
pittsburghracer
OP
"Little"John
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OP
"Little"John
Joined: Feb 2005
Posts: 20,178
PA.
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I think you are right on with the fluid level Cab. I think I'm fighting three or four issues. To much fluid, no vent, my car sits un-level where I park at home, and add to that I'm betting the temps climb pretty high in a closed trailer even in Pa on a hot day. Its an after market cover so if I have to I will re drill and lower the fill mark.
1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27
Livin and lovin life one day at a time
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Re: A few Dana 60 questions
[Re: pittsburghracer]
#1596723
03/23/14 12:18 AM
03/23/14 12:18 AM
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Joined: Dec 2004
Posts: 10,554
Rittman Ohio
fourgearsavoy
I Live Here
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I Live Here
Joined: Dec 2004
Posts: 10,554
Rittman Ohio
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I would contact Doctordiff for the correct axle seals for your rear.If the lube is getting past your sealed axle bearing then it has already washed the lube off the bearing. The level could be up to the top of the housing and if your seals are good and the vent is in good working order the lube should never get past the seal. Gus 
64 Plymouth Savoy
493 Indy EZ's by Nick at Compu-Flow
5-Speed Richmond faceplate Liberty box
Dana 60
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Re: A few Dana 60 questions
[Re: pittsburghracer]
#1596726
03/23/14 04:29 PM
03/23/14 04:29 PM
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Joined: Mar 2006
Posts: 9,910
Eighty Four, PA
B G Racing
master
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master
Joined: Mar 2006
Posts: 9,910
Eighty Four, PA
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Quote:
That's how mine are set up. i think a breather will help a lot.
See how nice we Hemi guys are  We have some nice aluminium breathers if you want to stop by I will give you one. 
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Re: A few Dana 60 questions
[Re: Polarapete]
#1596727
03/23/14 04:36 PM
03/23/14 04:36 PM
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Joined: Nov 2007
Posts: 21,825
Kirkland, Washington
Pacnorthcuda
Too Many Posts
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Too Many Posts
Joined: Nov 2007
Posts: 21,825
Kirkland, Washington
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Quote:
Is the leak coming from where the axle tube is pressed into the cast steel center? If so, you can weld the center to the tubes with 7018 rod and your arc welder. I had the same problem years ago with an OEM Dana 60 that I was using in my '68 Coronet even though it had a vent. Of course, back then I filled it to the plug level. The last two D60s that I built, I welded the tubes and there is no problem with it other than making sure that the weld area is clean enough...use PB blaster with a small wire brush followed by carb cleaner until it rinses clean. I always thought the centers were cast iron, but they are cast steel and the plug welds that hold the tubes are allowing flex and a direct path for gearlube to weep out. Bulk 7018 is meant to be kept in an oven for industrial use, but you can buy 1# sealed packages of it almost anywhere and if you use it immediately there is no contamination. When building a new D60, weld the tubes first, then narrow and jig it so that the final product is straight all the way.
Great vintage SIR shot Pete!
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