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833 4speed gear oil

GL-4

Lube 4 speed 007.JPG
 
Most of my 4-speed experience is with Muncie's and Toploaders and I've just recently acquired an 833 in a car - but I'm always amazed at reports of running motor oil in one of these old 4-speeds. It takes a lot of effort and care to re-seal one of those old transmissions to where it will hold in 85-90 gear oil. Motor oil in an old aluminum Muncie with a worn countershaft bore would probably be nearly dry of oil in a day or two. And my Toploader I've rebuilt/resealed a couple of times and it still has an occasional drip. I guess if you can get an 833 sealed up good and tight then go for it.

Another vote for GL4 Sta-Lube from NAPA.
 
Not a big Pennz fan but this stuff does work well.

pennzoil.jpg
 
I had a little gear clash when cold from 1st to 2nd. Sta-Lube did nothing, but the Penzoil Synchomesh worked like a charm. Shifts like butter now.
 
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