Overdrive trans.

hudsonsplasher1
hudsonsplasher1 Senior Contributor
in HUDSON
Hi all, 
what's a good weight of oil to use in a 49 overdrive? I'm changing the oil and don't want to use something too heavy.
Thanks, 
Gene.

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  • cchancel
    cchancel Member
    edited April 2019
     www.royalpurple.com/product/max_gear/

    Royal Purple Max Gear 75W-140 is a non-corrosive lubricant you can use in the transmission and rear axle. It meets the GL-4 and GL-5 specifications. I use it on my '51 Stepdown. It was recommended in either this or the member forum a while back. The overdrive uses the same oil as the transmission.

  • hudsonsplasher1
    hudsonsplasher1 Senior Contributor
    cchancel said:
     www.royalpurple.com/product/max_gear/

    Royal Purple Max Gear 75W-140 is a non-corrosive lubricant you can use in the transmission and rear axle. It meets the GL-4 and GL-5 specifications. I use it on my '51 Stepdown. It was recommended in either this or the member forum a while back. The overdrive uses the same oil as the transmission.

    Thanks, much appreciated.
  • onerare39
    onerare39 Expert Adviser, Member
    Here is a discussion on the same topic.

    https://openforum.hetclub.org/discussion/comment/221725#Comment_221725

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