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Dana 70 Bearing Install

Discussion in 'Quitters' Club' started by AKjeff, Dec 12, 2021.

  1. AKjeff

    AKjeff Member

    I'm rebuilding the rear axle in my Dodge pickup.
    While contemplating pressing the new bearings on the pinion and carrier I thought about using heat to make it easier.

    I can put the pinion and carrier in the freezer overnight and heat the bearings in the oven. From what I've found on line 200 deg F is a safe temp for tapered roller bearings.

    Has anyone done this before? Can anyone think of a reason not to?

    I wonder if the temperature shock during installation would be bad for the bearings or pinion and carrier.
     
    AKjeff, Dec 12, 2021
    #1
  2. Steve's 70-5

    Steve's 70-5 Active Member

    I worked for a General Contractor and we did a remodel at a business that sold heavy equipment. Hung out in the shop a lot. On the big hoe ram hammers. When rebuilding those hammers they would put pins in nitrogen for a few minutes. Let them get real cold and slip them in.
     
    Steve's 70-5, Dec 20, 2021
    #2
  3. termin8ed

    termin8ed I didn't do it Staff Member

    Done it on a few getrag transmissions. I ended up using my little 1 burner backpacking stove and a 3 " frying pan to heat the bearing:bananatool:
     
    termin8ed, Dec 20, 2021
    #3
  4. AKjeff

    AKjeff Member

    I forgot I had started this thread :worry:

    Thanks for the replies.

    I used my shop press to install the pinion bearing at shop temperature, it went fine.
    I was worried about having something to press against, I used the old bearings inner race and a 2" pipe nipple.

    I'll try the same thing on the carrier bearings, if they fight I'll pull them off and try the heat.
     
    AKjeff, Dec 20, 2021
    #4