The Dana Spicer 6.5-4-4991X (also listed as 6544991X) is a 1810-series automatic transmission end yoke assembly designed for splined-hole, involute-spline applications. It carries an Allison cross-reference number 29540186. Key dimensions: 55-spline count, 2.795 in. major diameter, 4.725 in. hub diameter, 7.547 in. outside yoke dimension (E), 1.938 in. yoke bearing dimension (D), 5.000 in. centerline-to-end-hub (S), and 2.047 in. length through hole (Q). The BP yoke style features a 2.856 in. c-bore diameter, 0.146 in. c-bore depth, and a 24-degree joint angle. Slinger/plug 233040 is included. Constructed of steel. Call us to confirm proper fit for your application.
Features
1810 series driveline end yoke assembly
Allison cross-reference No. 29540186
55-spline involute, splined-hole type, BP yoke style
7.547 in. outside yoke dimension (E), 1.938 in. yoke bearing dimension (D)
4.725 in. hub diameter, 2.795 in. major diameter, 24-degree joint angle
Includes slinger/plug 233040; steel construction
Tech Specs
- Series: 1810
- Yoke Style: BP
- Type: Splined Hole
- Spline Count: 55
- Involute Spline: Yes
- Major Diameter: 2.795 in.
- Hub Diameter (R): 4.725 in.
- C/L To End Hub (S): 5.000 in.
- Length Thru Hole (Q): 2.047 in.
- Outside Yoke Dimension (E): 7.547 in.
- Yoke Bearing Dimension (D): 1.938 in.
- C-Bore Diameter: 2.856 in.
- C-Bore Depth: 0.146 in.
- Joint Angle #1: 24 degrees
- Includes Slinger/Plug: 233040
- Material: Steel
- Allison Cross-Reference: 29540186
- VMRS: 022003072
