Rebuild Trac lok or buy new differential?

D

dec322

Member

Feb 11, 2006

401

2

16

Bham AL

Apr 11, 2007

#1

• Apr 11, 2007

• #1

The car is stock except for full exhaust. I'm going to be putting in 3.73 some time soon and I'm wondering about my Trac lok. I only get one mark when spinning the wheels but if I jack the car up and spin one wheel the other spins too. I'm assuming it needs a rebuild.

Is it worth rebuilding the trac lok or should I just save my money and buy an Auburn limited slip? I don't go to the track and the car is a daily driver.

 

Kumm3

Founding Member

Jul 30, 2002

527

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69

East Hartford, CT

Apr 11, 2007

#2

• Apr 11, 2007

• #2

Well, since it is literally a cake walk to rebuilt a stock trac-lok, i would reccomend you doing that and spending the money elsewhere.......

like maybe fill up the gas tank a few times?

 

Aryan15

Member

Sep 22, 2003

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CA

Apr 11, 2007

#3

• Apr 11, 2007

• #3

I agree. Rebuilding the traction lock was the easy part of my gear install.

 

D

dec322

Member

Feb 11, 2006

401

2

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Bham AL

Apr 11, 2007

#4

• Apr 11, 2007

• #4

I won't be doing my gear install so I won't be pulling anything out of my rear (??).

How long (generally) will a rebuilt trac lok hold up? What is the point of a new diff? Any difference between eaton and auburn?

 

Fett

New Member

Nov 2, 2004

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Apr 11, 2007

#5

• Apr 11, 2007

• #5

A rebuilt one will last as long as your last one did. If your bearings are all in perfect shape, all you will need to do is replace the clutches. If you get the Ford Racing kit, it comes with instructions that also tell you how to shim it extra tight to ensure no slippage with hard load.

Don't get confused when it comes to the term "rebuilt". All that means is that the bad parts of a component are replaced. In the case of a diff, the clutches and sometimes the bearings are replaced.

I rebuilt my rear end and am doing it again with a 31 spline chunk. It is quite simple and easy to do. It will work just as good as a brand new one, because that is essentially what it is.

 

ronburgundy

Member

Nov 19, 2006

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BC coast

Apr 12, 2007

#6

• Apr 12, 2007

• #6

the point of a new diff. is that the spiders etc are usually an upgraded material, the cluthes/cones are superior than oem. an auburn uses a cone type clutch that works very well at equalizing traction, the only downside is that once they are worn out, they cannot be rebuilt. an eaton posi uses carbon fiber clutches with heavy duty preload springs, and hardened internals. they work very similar to an auburn for performance, however they can be rebuilt. i personally prefer eaton just for that reason. mine works very well at painting even strips on the road. that being said, both of these diffs come at a price.

 

87Mustang351

Member

Sep 12, 2005

220

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16

Canada, Nova scotia, Cape Breton

Apr 12, 2007

#7

• Apr 12, 2007

• #7

i have some SVO 4:10s, and i cant do a dognut anymore, im gussing my track lock is gone, have to invest in a rebuild kit i guess

 

Fett

New Member

Nov 2, 2004

766

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Apr 12, 2007

#8

• Apr 12, 2007

• #8

ronburgundy said:

the point of a new diff. is that the spiders etc are usually an upgraded material, the cluthes/cones are superior than oem. an auburn uses a cone type clutch that works very well at equalizing traction, the only downside is that once they are worn out, they cannot be rebuilt. an eaton posi uses carbon fiber clutches with heavy duty preload springs, and hardened internals. they work very similar to an auburn for performance, however they can be rebuilt. i personally prefer eaton just for that reason. mine works very well at painting even strips on the road. that being said, both of these diffs come at a price.

Click to expand...

Assuming he has damaged carrier gears, if not...then he just needs new clutches. If shimmed correctly, the OEM Trac Loc works fine, especially for street/daily driver applications. I know many people who use the stock trac loc on 11-10 second cars. If this was a trailered track car only, then yes a solid rear dif would be the way to go..but for daily driver cars that see the track the OEM setup is fine. Again, IF the clutches are shimmed correctly to be tighter.

 

D

dec322

Member

Feb 11, 2006

401

2

16

Bham AL

Apr 12, 2007

#9

• Apr 12, 2007

• #9

Well, I've decided to just save my money to buy an eaton. I plan on having the car forever and eventually supercharging it. Plus I don't feel like having the rear taken apart just to put it back at the same strength. I'll just sell one of my children on ebay.

Well, probably not.

 

RYC CUKR

Founding Member

May 19, 2002

1,437

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Orlando

Apr 12, 2007

#10

• Apr 12, 2007

• #10

For just a basic street car I would just rebuild the stock t lock. They are pretty easy to rebuild and it relatively inexpensive.

 

B

black bucket

New Member

Apr 3, 2007

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Apr 13, 2007

#11

• Apr 13, 2007

• #11

rebuild it, and invest in some new spider gears too. it will be like a new car.

 

D

dec322

Member

Feb 11, 2006

401

2

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Bham AL

Apr 13, 2007

#12

• Apr 13, 2007

• #12

It seems as if rebuilding the trac lok is easy. What about pulling it out and putting it back in. Since it will already be open for gears (which I'm not installing) then the trac lok needs to be addressed. The problem is that I'm not going to the shop to get the trac lok and then give it back to them after I rebuild it. It would also be my luck that it is pulled and needs to be totally replaced. Then I'm screwed b/c I don't currently have the money for a replacement.

 

Jayded

New Member

Sep 9, 2006

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Laurel, MD

Apr 13, 2007

#13

• Apr 13, 2007

• #13

Could've went with the carbon fiber or kevlar clutches for the rebuild, the same one that are in the 03 cobras.

 

Modular2v

Founding Member

Jun 30, 2002

3,222

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99

oklahoma

Apr 13, 2007

#14

• Apr 13, 2007

• #14

go with an eaton posi if you are going to get one!