4 thoughts on “IMG_2811

  1. Renzo

    Did you modify front pinion bearing on diff? Im wondering how it will handle 175 ft lbs all at 90 degrees to the original…

    Reply
    1. adstriminator

      Hey- a real reply 🙂

      Originally I did nothing with the diff except replace the seals and put it into service. (it came out of a ’84 celica GTS from a pick and pull with unknown miles) About 7,000 miles and a little over one year in the pinion bearings did go out. I attribute that to their advanced wear to begin with, and the fact that I had removed and re-torqued the pinion flange. On these diffs as it turns out there is a crush sleeve that can only be torqued once. This meant I over tightened it and this probably did in the bearings.

      The diff was rebuilt with a solid pinion spacer and has been working fine since, another 14,000 miles or so so far.

      The side load is/was a concern to me as well, but consider the pinion gear itself also generates a very strong side force due to the right angle hypoid gear engagement. because of this the pinion does have tapered roller bearings on either end, which can handle a lot of load. And even in a normal install, the front bearing has to support a heavy, and probably somewhat unbalanced drive shaft. Basically I am pretty sure it will continue to handle the load.

      Reply
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    1. adstriminator

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      Reply

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