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| | | Forums66 Topics128,139 Posts1,056,758 Members48,454 | | 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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| | | | Joined: Jun 2007 Posts: 20 Apprentice | | Apprentice Joined: Jun 2007 Posts: 20 | Despite having a manual,and searching, can't find the answer to the following question:
What transmission oil to use in a 1960 GMC half ton 2wd with a manual trans (4 speed-granny 1st)? I have no clue as to the maintenance prior to my aquiring it, so I am changing everything! I run it mainly in the warm weather..Thanks!
Just learning...
| | | | | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | 90 wt gear oil. I'm partial to the Lucas brand myself.
Bill Burmeister
| | | | | Joined: Jun 2007 Posts: 20 Apprentice | | Apprentice Joined: Jun 2007 Posts: 20 | Thank you. I like Lucas,too,especially on stuff that sits a lot-keeps everything coated nicely.
Any idea of capacity? I recall that I read somewhere 16 pints or the like...I hate not buying enough and back to the store again!!!
Just learning...
| | | | | Joined: May 2006 Posts: 8,351 'Bolter | | 'Bolter Joined: May 2006 Posts: 8,351 | Should be 5 1/2 pints. I find that a 70/30 (roughly) mix of the Lucas gear oil and their Oil Stabilizer works very well in these old trannies. That's what I'm running in my 3 speed overdrive, I'm very pleased with the performance.
Bill Burmeister
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