Pinion Bearing Went Out

Discussion in 'Mustang Chit Chat' started by Tony Conti, Nov 4, 2020.

  1. Anti

    Anti forum member

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    After more digging it looks like it was just a poor forum source, because trying to go back find it, I am finding other people talking about pushing 1,000 hp without issues
     
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  2. Anti

    Anti forum member

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    I'm trying to see what 400 bucks more buys me vs the carbon clutch plates.

    Also, something to consider, being honest, I am hard on my car at times. It satisfys my itch to drive it like I stole it, regularly.. probably why the carrier and pinion bearings are screaming now.
     
  3. RED09GT

    RED09GT Senior Member S197 Team Member

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    The CF clutches are not that much of an upgrade, they still only have so much surface area.

    I went with a Yukon Grizzly Locker and regret not going with the Truetrac.

    Do it once and go with the Truetrac, lots of satisfied customers out there.
     
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  4. GlassTop09

    GlassTop09 Member

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    Very interesting.................
    I found this link that does deal w\ the subject of TBR & diff carrier max TQ rating contained in an email conversation between a race car builder & a Torsen engineer (assuming that the builder was considering a Torsen diff for his racer). The product isn't the focus but the math concerning TBR & diff carrier max rating is the focus as that will be valid for any LSD diff. The reading above this email is the usual run of the mill stuff concerning LSD's & TBR but you may find it useful..........

    The only thing I haven't found yet is the actual max TQ rating of the Eaton Detroit Tru-Trac diff (1 w\ 3.5 TBR) to find what is the max engine TQ range (depending on car's 1st gear final drive ratio being used along w\ it's weight) that this puppy can hold........ Somehow I do believe it is >10,000 ft\lbs.

    http://www.carter-engineering.com/cerearend.htm

    Hope this helps.

    To the OP,
    Glad you found most of your noise culprit.
    Sucks that it entailed a $700.00 tire expenditure.
    I myself just went thru an exercise recently w\ my Stang that proved to me the amount of increased NVH transfer that can occur when swapping out parts that connect the rear axle to the unibody that can make the rear diff sound like it's having issues so I can relate.
    Which is a testament to just how solid this S197's unibody construction is..........
     
  5. Midlife Crises

    Midlife Crises Member

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    I spoke with Eaton before I ordered the TruTrac. One of the things the Rep. told me was that the TruTrac is stronger than any of the 31 spline axles on the market so breaking the carrier is not a common occurrence.
     
  6. Anti

    Anti forum member

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    Done deal. Thank you all for humoring me. And thank you to the OP. Glad you found most of the noise also. Hopefully this and all new bearings and seals solves mine.

    Screenshot_20201112-212524_Chrome.jpg
     
  7. Greg D

    Greg D Junior Member

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    I had a shop install a 9" Eaton Tru-Trac in my '66 GT350, with 3.50 gear. The car has a Roush 342R motor that dyno'd 461HP and 420 lb-ft torque at the flywheel. During full-on acceleration, the car exhibited an extreme chatter that felt like the rear was going to explode until I coasted for 10-15 seconds. The shop loosened some clearances and it helped, but it will still do it once in awhile - again, only under very hard acceleration. With moderate acceleration, it behaves really well. However, I probably won't go with another Tru-Trac. Just my 2 cents.
     
  8. Norm Peterson

    Norm Peterson corner barstool sitter

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    What kind of clearances did they loosen up?


    Norm
     
  9. Norm Peterson

    Norm Peterson corner barstool sitter

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    Thanks for the link. I've saved it to a Word file for ongoing reference. FWIW, I recognize the name of the person asking the questions from Corner-Carvers.


    Norm
     
  10. Tony Conti

    Tony Conti Member

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    Anyone have links to those s197 suspension articles?
     
  11. Pentalab

    Pentalab forum member

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    The oem LSD is junk. The CF version is also junk. The CF plates will melt. The oem rebuild kits are cheap, like $100 for the CF kit, but who wants to be rebuilding an OEM LSD every year or two ?
     
  12. Sky Render

    Sky Render Stig's Retarded Cousin S197 Team Member

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  13. Tony Conti

    Tony Conti Member

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  14. Anti

    Anti forum member

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    Call me late to the party, but it didn't click till I saw the "s197forum.com" decal...

    Screenshot_20201120-200234_Chrome.jpg
     
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  15. Sky Render

    Sky Render Stig's Retarded Cousin S197 Team Member

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    LOL

    Y'all should check out my build thread in the Corner Carvers' section.
     
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