Sherman transmissions

Slowpoke

Well-known Member
How can one tell the difference between the two (or is it 3?) Sherman tranneys on a non-running tractor? I thought one is step up and one is a step down or is there one that has both up and down gears?
 
The step-up is the most common. The step-up/ step-down is the most sought after. And the step-down is the rarest.
The step-up shift lever is a "L" shaped steel rod, about 3/8" in diameter and has a shiney aluminum ball on it.
The step-up/ step down shift lever shorter, kinda curved, made out of cast iron with a small ball cast onto the end of it.

I think John Smith's web site, shows the differences, but don't have his link.
 
(quoted from post at 23:10:13 01/30/11) How can one tell the difference between the two (or is it 3?) Sherman tranneys on a non-running tractor? I thought one is step up and one is a step down or is there one that has both up and down gears?

Here's a picture of the shifters you see from the outside. The step-up lever is also used on the step-down. The combination lever is also used on the creeper. The step-up and the combination are most common Shermans. The chances of the Sherman being a step-down or creeper are pretty slim.

shermanshifterid2.jpg
 
"The step-up lever is also used on the step-down. The combination lever is also used on the creeper. The step-up and the combination are most common Shermans. The chances of the Sherman being a step-down or creeper are pretty slim."

I'm confused. Is the 'step down' a different transmission than the "creeper"? If so, what is the ratio of the 'step down' compared to the 'creeper' of 9-1? What is the ratio of the 'step down' on the combination? One tractor I have has the combination style lever and three positions, but it will not pull out from the center position for the conventional gears as shown on the diagram. Could it be needing repairs or only pulls out if the tractor is running?
 
[b:b3d0b750ea][color=red:b3d0b750ea]What is a "GOOD" price for a Sherman Combination" Transmission?[/color:b3d0b750ea][/b:b3d0b750ea]

Scott, I bought one off Ebay for $500.00 a couple of years ago. It was missing the adapter which I got from John Smith for $75.00.

With Ebay you're buying a pig in a poke - The Lord looked out for me and my pig was in good shape.

So to answer your question, price ranges $500 - $1000. The upper end of the price range will get you one that has been gone through and brought up to new specs.

The Hupps are just as good (they shift between ranges easier) and are usually $200-300 less. Due to the lower production numbers, there are fewer of them around which translates to fewer available spare parts.
 
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