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Eleventeenth Gear Poster
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I installed my FRPP 3.73 rear end this afternoon and once I had the rear up on jack stands I spun one of the rear wheels to see if my e-brake was on. Well it wasnt on and when I spun the wheel the other spun the oppsite way....WTF! Can the TL portion of the rear go bad without any indication? I never felt or heard anything weird from that area. I have an E under AX on the door jam and once I had the old pumpkin out I saw the tag on it read 3L27. Could the car and pumpkin have been tagged wrong?

I'm glad the e-brake wasnt on and I found that out because my old pumpkin was going to Tim B. I he had gone throught all the work to put that in and it didnt have TL I would have felt like and A$$.
 

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02 Explorer Pioneer
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2,880 Posts
Yes the clutch packs can wear out or even the S sping that pushes against them can break. I'm still interested I'll just open it up and see what's inside
 

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Aaron K. said:
I installed my FRPP 3.73 rear end this afternoon. I spun one of the rear ......and the other spun the oppsite way
Are you referring to the Old diff. or the new one? What you describe is exactly what an OPEN diff. should do. It's also what a trashed Trac-Loc will do! I've trashed 2 Trac-Locs, so I know what I'm talking about. With the first one, there was Nothing left of the friction or seperator plates, except magnetic sludge! The second one was all there, just the friction plates were completely worn out.

I saw the tag on it read 3L27. Could the car and pumpkin have been tagged wrong?
Yes that's entirely possible. The tag decodes as a 3.27 Trac-Lok.

68COUGAR
 

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Aaron K. said:
I have an E under AX on the door jam and once I had the old pumpkin out I saw the tag on it read 3L27. Could the car and pumpkin have been tagged wrong?
It's definitely a 3.27 Trak-lok rear... but they need frequent fluid changes ( I saw one Ford Spec say 100,000 miles!), otherwise they start working like a 1 wheel peel. My 95 went about 50k before it acted up, then about 50k more before it did it again. I'll be changing the one I install in the 97 at 25k intervals. Sounds like your axle needs a T-lok kit before it's reinstalled.
 

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Confirmed V6 Nut
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What fluid is recommended for a traclok pumpkin?
 

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Refrigerator Raider Hater
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11,719 Posts
gear oil and friction modifier. The ford spec is 80w90. If you off by 5 on either number it's no biggie.
 
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