Richmond 8 3/4" 742 case 4.30 ratio I.D.

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Locomotion

Locomotion

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I have a ring & pinion that I got in a package deal. It was suppose to be a new 4.86 gear for a 742 case. It turned out to be a 4.30 gear that the seller later described as low use instead. Tried matching up the Richmond part numbers, which start with 69 for Chrysler applications, but it didn't apply because the numbers start with 82! Can anyone clarify the situation?

Pinion # - 82-8302-1
Ring gear # - 82-7302-1

Pinion teeth - 10
Ring Gear teeth - 43
Not a pro gear because it has 8620 stamped for "street" gear as opposed to 9310 for "pro" gears.
Old reverse rotation (4WD) part?
Old numbering system?

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Get a mic on the pinion shaft and see what it measures.
 
1.750" on the pinion bearing.

1.310" on the yoke

Just under 9" overall pinion length.

8 3/4" ring gear measured on the tooth side.

I never set any up, but I've had many 8 3/4" gear sets over the years and it looks like an 8 3/4". But the numbers don't make sense.

I think they got bought out years ago, but my last resort will be to Richmond. I don't want to sell till I know all the details.
 
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Locomotion said:
1.750" on the pinion bearing.

1.310" on the yoke

Just under 9" overall pinion length.

8 3/4" ring gear measured on the tooth side.

I never set any up, but I've had many 8 3/4" gear sets over the years and it looks like an 8 3/4". But the numbers don't make sense.

I think they got bought out years ago, but my last resort will be to Richmond. I don't want to sell till I know all the details.
Click to expand...

Then that's a 4.30 ring and pinion for a 742 case. It's marked Richmond, but it has the Dana Spicer diamond logo too. I tried looking it up both ways, but had no luck. It's right by the measurements though.
 
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