Application Notes: BW4481; 27 Spline Input, 32 Spline Slip Yoke Style Rear Output, Single Speed, AWD, Option Code NR3, Tag Numbers: 12575087, 12576706, 12578859, 12580561, 12581644, 12588229, 12589499, 24231475, 24232827, 89048543, Hollander Number: 412-581, Other Numbers: UMT103-3.
Remanufacturing Process
Every transfer case we sell is fully remanufactured to meet or exceed OEM specifications. Our remanufacturing process:
- Deep Clean – To start the remanufacturing process, each transfer case is fully disassembled and cleaned
- Inspection – Each transfer case is carefully inspected for cracks, excessive wear, shaft warp, and chain stretch
- New Components – All seals, bearings, joints and rings are replaced as well as electrical components (solenoids and control units)
- Validation – After reassembly, each individual transfer case is spin tested as part of a detailed checklist validation process
Every unit is fully remanufactured and covered against defects in materials and workmanship. Email us to confirm the current warranty term for this unit before purchase.

