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Nodular Cast Iron Ford 9" LSD 3rd Member 4.56 Gear 31-Spline 1310 C23407-31

Item Description
These Ford 9 inch third member assemblies feature a limited slip differential available in 31 spline axle shaft configurations. 

 The clutch style posi-traction unit is a proven combination and a better alternative for street driven cars vs the more expensive locker and spool options that are often overkill and not nearly as smooth on the street. It features heat treated spyder gears and spring loaded clutch pack with improved grip over OEM design. This unit is based off the proven original limited slip design with upgrades for a long lasting combination. 

  The ring and pinion are made of 8620 Chrome-Nickel-Moly Steel. CNC machined from high quality forgings to our exacting specifications and then heat treated to obtain high impact and durability. Then lapped to allow for correct tooth contact and smoothness and for use in the performance market.


Ride Right Designs 
Cast Iron Ford 9" 3rd Member 
Clutch Limited Slip Differential
4.56 Gear 
31 Spline 
1310 Short Yoke 
Anodized Drain Plug
BPC-4202
79lbs 
Also offered in a 3.50, 3.89, 4.11 & 4.56 gear

From our wide selection

Product Information

Some photos are stock photos and may vary from actual part. Please see complete description of this part to make sure it is the correct part you need. Please carefully check to make sure this will fit your application.


  • Professional installation is strongly recommended.

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Shipping Terms

We ship daily Monday-Friday, except holidays. Orders generally ship out same or next business day. We ship from various warehouses located around the US. We attempt to ship from the warehouse closest to you to assist in prompt delivery. We offer combined shipping upon request, if the products can be safely packaged together.


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Return Policy

All return requests must be made within 30 days of the delivery date of the item(s) ordered. All returned merchandise must be in original packaging, and in new, uninstalled condition. All returns require an RMA (Return Merchandise Authorization).


  • We do not accept returns on parts that have been installed.


  • Any items that have a warranty issue will be handled by the manufacturer. Please contact us for assistance with warranty issues or manufacturer defects. 

About Us

Show N Go Performance is a family owned and operated business located in Florida. We offer a large selection of aftermarket parts from the most trusted manufacturers in the market. Whether it be for street, track, off-road, or a custom build, we offer a wide variety of options. With access to millions of products, we have an ever-expanding parts inventory system, and are constantly doing our best to stay up to date with the latest car culture trends. Our goal is to offer you the right parts at the right prices!

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