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Out here on the West coast the shops mainly used 80-90w . I can see your shops out there using the 50w as your much colder in winter then we ever are. When the gears get going they produce some serious heat and that really thins out the oil. Since we are on average 50 degrees F. (year round...

Hey David, I found some from Gringletaub (Gerhard). He's bring them up to the rally and then mailing them off to me. Thanks Gerhard !

The straight 50w from the fifties is not the same 50w of today. We had quite a discussion on this last year. Or was it early this year ? Either way that is why most all transmission shops went to 80-90w gear oils in the 1960's up to the present era. So using the 50w "gear oil" is what the...

That wear pattern is called "spalling" and it is normal if you just replaced the countershaft gear or that is a new third gear with an old counter shaft gear. Sometimes changing the gear oil to a lighter weight can also cause it. If it is from new gears just leave it and let it "run in" to the...

Those make good "bogie bushings" removers ! When I was working at IHC in the 1970's we had a 100 ton press. I had to replace the suspension (bogie) walking beam bushings in a 80,000 Ibs dump truck. It took the full 100 tons plus the torch to get that one bushing out ! When it finally came free...

I was hitting it alright ! and heating it with the torch before it finally came off. It was on there but good ! After looking at the gear once it was off I could see small gouge marks on the shaft and gear. I believe who ever originally installed it didn't use any assembly lube and just rammed...

I've been salvaging transmissions parts I have here lately and the countershaft gears have all taken my 15 ton press to remove. Actually I had to put my 20 ton jack in to get one off, and it started to bend my press top plate before it finally came free ! That was from a 1954 REO truck and I'm...

These Spicer transmissions are about as simple as you can get. Unlike modern manual transmissions which require a whole box full of special tools to repair. All you need is a 9/16" socket or wrench, a 3/4" socket, a 1.5" socket, a hammer, snap-ring pliers, and side cutters to remove the cotter...

Tom has "all" the bearings and small parts at really good prices too !

They did. We had a discussion last year (?) about the proper gear oil. I ended up calling "Tremec" who bought out Spicer and talked with an engineer about it. According to him the "modern" oils are OK for the manual transmissions. He did recommend a 50W or higher though.