The Fabco TC237HD is a two-speed, three-shaft, constant-mesh transfer case built around a declutch mechanism for front axle and under-drive engagement. Fabco part number 873-2144-004 or 8732144004. Rated at 6,000 lb-ft input torque, 350 HP, and 3,500 RPM input speed. Gear ratios are 1:1 High and 2.22:1 Low, using helical and spur gearing. The aluminum housing rides on tapered roller bearings and shifts via an integral air cylinder. Input and rear output shafts measure 1.95 inches with a 38-involute spline; the front output is 2.25 inches with a 10-parallel spline. Shaft drop spacing is 12.00 inches to both rear and front outputs. This unit also interchanges with several additional Fabco part numbers when yokes are changed - contact Pro Gear and Transmission with your data tag information to confirm the correct configuration for your application.
Fabco parts
Fabco parts
A refundable core charge of $7,500.00 applies to this item and will be collected at checkout. The core charge is refunded upon receipt of your returned core, subject to its condition; customer is responsible for return shipping. Call us at (877) 776-4600 for details.
Features
Two-speed operation: 1:1 High and 2.22:1 Low gear ratios
Helical and spur constant-mesh gearing with tapered roller bearings
Integral air cylinder shift mechanism
Input and rear output: 1.95-inch shaft, 38-involute spline; front output: 2.25-inch shaft, 10-parallel spline
12.00-inch shaft drop spacing to both rear and front outputs
Aluminum housing; splash lubrication using SAE 50 or SAE 90 oil, 6.5-quart capacity
Optional full-power PTO and mechanical shift mechanism available
Tech Specs
- Gear Type: Helical & Spur
- Input/Rear Output Shaft: 1.95 inches, 38-involute spline
- Front Output Shaft: 2.25 inches, 10-parallel spline
- Shaft Spacing (Drop): 12.00 inches to rear output, 12.00 inches to front output
- Shift Mechanism: Integral air cylinder
- Bearings: Tapered roller
- Lubrication System: Splash
- Lubricant Specification: SAE 50 or SAE 90
- Oil Capacity: 6.5 quarts
- Housing: Aluminum
Additional Information
| Input Torque | 6,000 Lb. Ft. |
| Horsepower | 350 HP |
| Input Speed | 3,500 RPM |
| Ratios High Low | 1:1 2.22:1 |
| Gear Type | Helical & Spur |
| Shaft Sizes Input/Rear Output Front Output | 1.95 Inches, 38 Involute Spline 2.25 Inches, 10 Parallel Spline |
| Shaft Spacing (Drop) | 12 Inches - to Rear Output 12 Inches - to Front Output |
| Housing | Aluminum |
| Shift Mechanism | Integral Air Cylinder |
| Bearings | Tapered Roller |
| Lubrication System | Splash |
| Lubricant Specification | SAE 50 or SAE 90 |
| Lubricant Capacity | 6.5 Quarts |
| Options | Full Power PTO Mechanical Shift Mechanism |
