Gear Ratios: Misinformation at its worst.

Taller and shorter refers to the diameter of the ring gear
When installed they are on edge and 1 is taller than the other.

 

Back in the day when 12 bolt rear was the thing to have in a GM. You can't put 456 gears in a 3 series carrier and you can't put 308's in a 4 series carrier. Well without serious modifications you can;t.

 

"Taller" "Higher" "Longer" refer to higher gears. (Lower number gear ratio)

If you have 4.11's, and 3.54's, the 3.54's are the taller, longer, higher gear of the two.

 

Rear end gear ratio is the number of teeth on the ring, divided by the number of teeth on the pinion. Not really sure what you're talking about, or if I missed part of the conversation.

 

Yes , What did I say?
The ring gear tho Not necessarily the pinion.

 

You said the ring that's bigger is the taller gear, and it gets it's name because it has a larger diameter. If it's got a larger diameter, it takes more revolutions of the pinion to turn it. That means the larger ring is a shorter gear, not a taller gear.

Unless I'm just completely misunderstanding what you're getting at.

 

They make a spacer and longer bolts to put say 4.11 on a carrier that had 3.08 or where ever the split was. The ring is the same diameter on both. The pinion is bigger in circumference on higher gears is why the back spacing is different. You cannot however use a 4.11 carrier with 3.08

 

If you do the math you don't get an exact number like 354 or 355 that number is rounded off from a longer number.
The answer to the equation is stated as 3.55 to 1.

41divided by 10 is 4.1 so the ratio of the gears is 4.1-1 and 4.10-1 is the same answer. The 0 means nothing.
Also 37 teeth divided by 9 teeth is still 4.1-1 ratio.

 

The way I see it ,maybe wrongly. is the bigger gear [crown] goes a greater distance for each revolution of the pinion.