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42RE / 44RE OD Ring Gear 15 Degree


Mfg Retail: $47.49
Cost From Us: $37.88
You Save: $9.61
In Stock
Our Part #: 12590AB-U
Manufacturer: Cascade Product
Mfg Part # : 4761010
free shipping
42RE / 44RH Overdrive Ring Gear 15 Degree
Stock Replacement for ID Groove Ring Gear Applications

This was typically stock from the factory in 1994 an newer applications.

This is a quality used part ; we clean and closely inspect these in our machine shop.
As parts professionals we are very picky when it comes to our used parts.
We only pick the Best of the Best and the they are all thoroughly inpected.

This is a 15 degree ring gear and will have an Easy To Spot ID Groove on the outer face of the ring gear.

Information about the update for 1988 To 1993 models
If you have a Non ID Groove ring gear then you have a 22 Degree Design.
It is strongly suggested to convert to the 15 degree pitch.
The 22 Degree ring gear transfers thrust too agressively.
This causes premature gear pitting and severe gear rock problems.

To update a 22 Degree with a 15 Degree ring gear you must also update the Overdrive planet and sun gear.


Our Part #       12590AB-U
Sonnax Parts #  12590AB-U


Customer Service is our Priority , Email us any questions you may have !
We do offer combined shipping for multiple purchases to Export Customers.
We would appreciate the opportunity to serve your transmission parts needs ! ! !




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