Question Regarding Cj2a's Differentials

Lockman · Mar 13, 2020

BadGoat said: ↑

Limited slip differentials predate the M38A1 by a bit. The original Torsen differential (geared) patent was issued to Gleasman in 1951, and applied for in 1949.

Ferdinand Porsche commissioned ZF to develop a torque bias design differential as early as 1935 for his racing cars. This didn't lock the axles together, but sent the power to the tire with the greater traction.

I haven't found a date on when the first clutch type differential was patented, but it may precede the Torsen.

Mike
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Thanks for the info , Mike. Did you mean " GLEASON's " ? They are in my Hometown & my son Matt, works for them.

BadGoat · Mar 13, 2020

Lockman said: ↑

Thanks for the info , Mike. Did you mean " GLEASON's " ? They are in my Hometown & my son Matt, works for them.
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Yes and no. Vernon Gleasman was the original inventor. The design was then sold to the Gleason corporation in the early 80s. While the names are close, it appears the two are not related.

The Truetrack is a derivative of the original Torsen design and very popular for off road use and it's suitable for use in the front axle with no ill handling effects on winter roads.

Mike

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Question Regarding Cj2a's Differentials

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Question Regarding Cj2a's Differentials

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