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SCS Gearbox Quick Change Drop Transfer Case (12.66" / 18.00" / 23.33")
SCS Gearbox Quick Change Transfer Case
Additional Images

Sold Individually
Price: $2,320.35

Availability: Usually Ships in 2 to 3 Weeks
Product Code: SCS-TCASE

Select Gearbox Model

- Magnesium case is 15-20 pounds lighter.

- Straight Drop Reverse Option Adds 5.34" (18" Case).

- Call for Ultimate drop case ratios.

Select Gearbox Options

Add Front Shaft Disconnect (2WD) [+$832.35]

Select Quick-Change Gear Ratio

- Output Ratio = Lower Gear Ratio x Quick Change Gear Ratio
- Additional quick-change gear sets available separately.
- Gear sets can be installed as either high or low ratio.

Input and Output Flanges

- Custom input and output flanges available, contact us for details


SCS Gearbox Quick Change 4x4 Transfer Cases are engineered, machined, and built to handle the most severe off-road racing abuse with ease and have had no gearing or shaft failures in over 15 years. Their aluminum or lightweight magnesium cases are precision machined for maximum strength and feature a quick change upper section for fast and easy gear changes. While they are built to handle high horsepower monster trucks, mud trucks, and sled pullers, they work just as well in large rock crawlers and buggies.

SCS Drop Style Transfer Cases use two gear sets that work together to create your overall gear ratio. The pre-installed lower gear set offers a 1.30:1 overdrive ratio that can be inverted to a 4.70:1 (7.80:1 in the Ultimate Drop model) underdrive ratio. The upper quick-change gear sets are available in your choice of over 60 different ratios up to 1.677:1 or down to 0.600:1 and can also be inverted to offer high and low gearing. To calculate your overall gear ratio, simply multiply the two together or contact us for assistance. Additional lower gear sets are also available via special order.

A heavy duty bolt-on front drive shaft disconnect with neutral indicator switch is available for applications where switching between 2WD and 4x4 is needed. Additionally, a bolt-on counter rotation adapter is also available for rear engine vehicles. This unique modular all-gear design, combined with over 60 different quick change gear sets makes the SCS Quick Change Drop Case the strongest and most versatile off-road transfer case on the market today.

U-Joint Sizes
1310 U-Joint A very common automotive U-Joint for OE applications.
1330 U-Joint Used in many modern OE cars and SUV applications.
1350 U-Joint Medium size OE trucks and a popular performance upgrade.
1410 U-Joint Standard equipment on most 3/4 and 1 ton trucks.
1480 U-Joint 2.5Ton OE military axle joint (not shown)
1550 U-Joint 5Ton OE military axle joint (not shown)

SCS Gearbox images are ┬ęCopyright SCS Gearbox, Inc., used with permission.
Additional images and product description are ┬ęCopyright Filthy Motorsports, LLC.
  • Indestructible Design
  • Aluminum or Magnesium Case
  • 1.75"-10 Spline input and Output Shafts
  • 1.3 Overdrive / 4.7 Underdrive Lower Gears
  • Quick Change Style Upper Gearing
  • Optional Rear Engine Case
  • Available 2WD Disconnect
  • Made in the USA

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