Dana 60 Posi - Not being Posi - The 1947 - Present Chevrolet & GMC Truck Message Board Network

LT102 · 07-16-2015, 05:11 PM

My Dana 60 posi is only applying power to the right tire. I bought this truck back after regretfully selling it 10 years ago. It was posi when it was sold and the previous owner assures me he didn't change anything, and I believe him. I pulled the left axle and all the splines look good. I have no idea what else to check. What do you think has broken.

hugger6933 · 07-16-2015, 05:28 PM

Clutches burnt out?
Springs worn or broken?

LT102 · 07-16-2015, 05:41 PM

Is repair for that going to be really expensive?

summitflier · 07-16-2015, 05:47 PM

The spool is really the only thing it could be. If the axle was broken it would fall out.
New spools are $400-$600. I personally would change the inner races and the bearings. If you get a shop to do the labor, could be a couple hundred more.

BLT gmc · 07-16-2015, 05:55 PM

Clutches are most likely excessively worn. Watch Toms differentials you tube video on rebuilding and tuning. He also is a great resource and parts supplier. Good luck
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65standard · 07-16-2015, 06:54 PM

Make sure it is a true posi rear end first. Jack the rear up and spin one tire by hand and see if the other tire rotates in the same direction.

Mike C · 07-16-2015, 10:20 PM

Most likely you have a TracLock and not a PowerLock or the Maximum Traction (Detroit) difff, but it could be any of the above. What does the SPID say?

Next, if it's 10 years since you last owned the truck, most likely the diff fluid could use a once a decade change. Pull cover. Take picture. Post picture in this thread. Then we can ID what your diff is and what you need to do.

Money has a TrackLock with worn clutches but will hold final judgement until we see pics.

cdowns · 07-17-2015, 11:58 AM

anybody think after 40years or more it's just plain worn out??

Mike C · 07-17-2015, 04:14 PM

Yes, That's what we have all mostly said. But to know for sure we have to know what it is. TrackLock=probably worn out. PowerLock maybe not... Maximum Traction diff then it's broken.
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*vettedrvr* · 07-18-2015, 02:08 PM

Quote:

Originally Posted by LT102

My Dana 60 posi is only applying power to the right tire. I bought this truck back after regretfully selling it 10 years ago. It was posi when it was sold and the previous owner assures me he didn't change anything, and I believe him. I pulled the left axle and all the splines look good. I have no idea what else to check. What do you think has broken.

You will need to pull the diff cover and determine which center section you have. I'm betting it's a TruTrac and, if so, it is easily rebuildable. A clutch kit for it is available from Drivetrain Specialists for between $92.00 and $128.00 depending on which one you have. That's cheap considering a new one goes for $680.00.

LT102 · 07-18-2015, 02:29 PM

I will try to open it up tomorrow and post a photo. Thanks for you help.

07-16-2015, 05:11 PM	#1
LT102 Registered User Join Date: Oct 2012 Location: Greenville, Oh Posts: 72	Dana 60 Posi - Not being Posi My Dana 60 posi is only applying power to the right tire. I bought this truck back after regretfully selling it 10 years ago. It was posi when it was sold and the previous owner assures me he didn't change anything, and I believe him. I pulled the left axle and all the splines look good. I have no idea what else to check. What do you think has broken.

07-16-2015, 05:28 PM	#2
hugger6933 Registered User Join Date: Oct 2008 Location: Marianna Arkansas Posts: 7,280	Re: Dana 60 Posi - Not being Posi Clutches burnt out? Springs worn or broken?

07-16-2015, 05:41 PM	#3
LT102 Registered User Join Date: Oct 2012 Location: Greenville, Oh Posts: 72	Re: Dana 60 Posi - Not being Posi Is repair for that going to be really expensive?

07-16-2015, 05:47 PM	#4
summitflier Registered User Join Date: Jun 2015 Location: Ephrata, WA Posts: 308	Re: Dana 60 Posi - Not being Posi The spool is really the only thing it could be. If the axle was broken it would fall out. New spools are $400-$600. I personally would change the inner races and the bearings. If you get a shop to do the labor, could be a couple hundred more. __________________ 68 C10 SSB 383 12 Charger 6.4L 12 Accord 3.5L (Wife's ride) 05 Ram 1500 5.7L My build thread - http://67-72chevytrucks.com/vboard/s...d.php?t=676545

07-16-2015, 05:55 PM	#5
BLT gmc Registered User Join Date: Feb 2014 Location: West Iowa Posts: 1,106	Re: Dana 60 Posi - Not being Posi Clutches are most likely excessively worn. Watch Toms differentials you tube video on rebuilding and tuning. He also is a great resource and parts supplier. Good luck Posted via Mobile Device

07-16-2015, 06:54 PM	#6
65standard Registered User Join Date: Dec 2014 Location: Coal City, IL Posts: 695	Re: Dana 60 Posi - Not being Posi Make sure it is a true posi rear end first. Jack the rear up and spin one tire by hand and see if the other tire rotates in the same direction. __________________ Tony Nicholas @ Midwest Metal Masters 1953 Chevy 3100 392 Hemi w/727 & 9” Ford 1985 Chevy C/10 6.0L 4L80 373 locker

07-16-2015, 10:20 PM	#7
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,728	Re: Dana 60 Posi - Not being Posi Most likely you have a TracLock and not a PowerLock or the Maximum Traction (Detroit) difff, but it could be any of the above. What does the SPID say? Next, if it's 10 years since you last owned the truck, most likely the diff fluid could use a once a decade change. Pull cover. Take picture. Post picture in this thread. Then we can ID what your diff is and what you need to do. Money has a TrackLock with worn clutches but will hold final judgement until we see pics. __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax

07-17-2015, 11:58 AM	#8
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: Dana 60 Posi - Not being Posi anybody think after 40years or more it's just plain worn out?? __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

07-17-2015, 04:14 PM	#9
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,728	Re: Dana 60 Posi - Not being Posi Yes, That's what we have all mostly said. But to know for sure we have to know what it is. TrackLock=probably worn out. PowerLock maybe not... Maximum Traction diff then it's broken. Posted via Mobile Device

07-18-2015, 02:29 PM	#11
LT102 Registered User Join Date: Oct 2012 Location: Greenville, Oh Posts: 72	Re: Dana 60 Posi - Not being Posi I will try to open it up tomorrow and post a photo. Thanks for you help.



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