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| | | Forums66 Topics128,157 Posts1,056,892 Members48,458 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
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on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Dec 2008 Posts: 16 New Guy | | New Guy Joined: Dec 2008 Posts: 16 | My maintinance manual calls for 160 oil for trans and differental.
It is not available anymore and I would like to know if anyone can narrow down what is out there that is comparable. When I search online I get a headach trying to sort out all the options.
I tried 75-140w but it leaks and does not seem thick enough. | | | | | Joined: Mar 2002 Posts: 9,115 'Bolter | | 'Bolter Joined: Mar 2002 Posts: 9,115 | I have seen some discussion about hypoid oil is not being good for the really early transmissions. I have also seen the opposite opinion given. Lucos (spelling?) has some great products for the older transmisions. | | | | | Joined: Dec 2008 Posts: 16 New Guy | | New Guy Joined: Dec 2008 Posts: 16 | Thank you for your reply. I got some Lucas stabilizer from Napa today. Put in one quart and topped off with 85-140 as per Napa dealer. It helped to quiet the trans down and did not leak.
Trans still a bit noisy in neutral with clutch out. This may be normal but I have not heard another truck yet. I may have to remove and check bearings. Thanks again , Mike | | |
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