For 29 Spline AMC Model 20 Axle with 3.08 and Numerically Higher Gear Ratio
Quadratec Part No: 16100.307 Manufacturer Part No: 187SL47A
Was: $699.99 Now:$649.99
Soft Lockers represent the latest generation of quieter traditional locking differentials, although some of the characteristic sound remains. Detroit Locker offers a complete selection of time proven lockers for Jeep vehicles. The patented locking gear mechanism has been the standard in lockers for decades. The 100% axle lock-up & positive gear action is clutchless with nothing to wear out. The trouble-free automatic operation requires no complicated wiring or switches. Detroit Lockers come with a heavy-duty differential carrier to replace the stock unit.
The legendary Detroit Locker began the revolution in performance differentials and still leads the industry today. The Detroit Locker is the most durable and dependable locking differential available.
The Detroit Locker maximizes traction by delivering 100% of the torque to both drive wheels. It is engineered to keep both wheels in a constant drive mode, and has the ability to automatically allow wheel speed differentiation when required.
The Detroit C-Locker is built for C-Clip style axles. The Detroit C-Locker functions with the same technology as the Detroit Locker. The manufacturer's standard C-Clips are used when a Detroit C-Locker is installed.
The Detroit SL Locker or SofLocker is a Detroit Locker with a twist. Accelerator adjustments (drive to coast) are made frequently during normal driving. The Detroit SofLocker makes noise when the drive member reengages the driven members during these adjustments. The Detroit SofLocker employs a pre-load spring pack to keep the drive and driven members engaged and dampens this noise. The pre-load does not affect the speed differentiation function when required while turning corners. The Detroit SofLocker provides the same performance of the Detropit Locker with reduced noise.
No other performance differential has the reputation for delivering traction in mud, snow, rocks and on the track. The choice of professional racers and off-road enthusiasts around the world! The durability of the Detroit Locker is unmatched!
The following parts require additional handling charges due to their large size or
weight: wheels, tires, full suspension lift kits, oversized bumpers, tire carriers, body tubs, hard tops
and cargo racks. The following parts do not qualify for free shipping: Oversized items and items
delivered by truck freight, as well as prior purchases and returns.
Jeep Parts & Jeep Accessories Take your Jeep to the next level with the parts found on our site. We are a leading Jeep accessories retailer, providing performance products for our customers. We work hard to give you the best information to turn your vehicle into a top-notch ride. Whether you are looking for 4wd suspension parts & accessories or want improved Jeep performance, we have the parts & Jeep accessories you need.
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Throughout this web site all the preceding marks & logos are used for identification purposes only. Quadratec has no affiliation with the Chrysler LLC, MOPAR®, General Motors Company, Ford Motor Company, Suzuki Motor Corporation or Isuzu Motors Limited. It is not implied that any part listed is a product of, or approved by Chrysler LLC, General Motors Company, Ford Motor Company, Suzuki Motor Corporation or Isuzu Motors Limited.
Quadratec, Inc. is sometimes mis-searched as Quadartec and Quadratech, we have no affiliation with either. 
* Free Shipping Special Offer Details
To qualify for FREE shipping the parts on an individual order must meet a combined total value of $75 or more. Customer must select Standard Shipping in the checkout and ship to an address in the contiguous 48 United States. Some parts require additional handling charges due to their large size or weight: including wheels, tires, full suspension lift kits, oversized bumpers, tire carriers, body tubs, hard tops, cargo racks, winches and hitches. Oversized items, items that are delivered by truck freight, prior purchases and returns do not qualify for free shipping.