Ring and Pinion set identification.

fbs63 · Jan 10, 2021

I am trying to determine how to tell if a ring and pinion are a set. Not the ratio but if they belong together as a set. I have a Dana 60 4.10 ring and pinion a customer wants me to set up but it has some odd wear marks. I checked the serial numbers on them and they are about 3000 numbers apart in series. I also checked 4.10 and 3.73 sets that I have and they are consecutive in numbers. I suspect the ring and pinion don't belong together but the customer states they were running together. Anyone have insight on this? Hate to go through setting it up only to have it noisy because they don't belong together.

Darter6 · Jan 10, 2021

I'd say they are not a match. Be careful and tell the guy if he wants to use them you are not responsible if noisy.
You get what you get with used parts.

Suregrip391 · Jan 10, 2021

I’ve seen plenty of ring gears and pinion gears with an etched in number that match each other. Look at the head of the pinion gear and the side of the ring gear for what looks like someone used a scribe. I’ve seen this on a lot of factory gears. I’ve also seen where these numbers are not present. It will be hit and miss.

Suregrip391 · Jan 10, 2021

Look close and you will see a 174 on both of mine. Pinion gear below

Suregrip391 · Jan 10, 2021

And now the ring gear

fbs63 · Jan 14, 2021

Thanks. I'll check it out tonight.

Ring and Pinion set identification.

fbs63

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Darter6

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Suregrip391

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Suregrip391

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Suregrip391

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fbs63

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