This listing is for a New OBR Mercruiser Alpha I Gen II Complete Drive Shaft Assembly, which will fit models from 1991 and up (Please note that Alpha I Gen II serial numbers are from OD494569 and after). New drive shaft assemblies are assembled with a combination of all new OEM and new aftermarket parts using only high grade American steel for gears and shafts. Bolt Kit Included. For a Counter Rotating assembly, add $300. This item is available in the following Gear Ratios:
- 3.0L 4 cylinder 2.0 Ratio
- 3.0L 4 cylinder 1.94 Ratio
- 4.3L V6 1.81 Ratio
- 5.0L V8 1.61 Ratio
- 5.7L V8 1.47 Ratio
When placing an order, please specify gear ratio, number of cylinders, model and serial number.
Alpha I Gen II Standard Production Models
| ENGINE |
HP |
DISPLACEMENT
LITRE/CID
|
CYLINDERS |
GEAR RATIO |
TOOTH COUNT |
YEAR |
| 3.0L |
130 |
3.0/181 |
4-In-Line |
2.0 |
24-24 |
1998-2012 |
| 3.0L |
130 |
3.0/181 |
4-In-Line |
1.94 |
20-24 |
1991-1997 |
| 4.3L |
175 |
4.3/262 |
V6 |
1.81 |
17-19 |
1991-2012 |
| 5.0L |
230 |
5.0/305 |
V8 |
1.61 |
24-24 |
1991-2012 |
| 5.7L |
260 |
5.7/350 |
V8 |
1.47 |
20-22 |
1991-2012 |
| NA |
NA |
NA |
NA |
2.4 |
20-24 |
1998-2012 |
A Limited One-Year Warranty is included in the order. An additional Twelve-Month Extended Warranty is available. See options and pricing above. Please read the terms of OBR's New and Remanufactured Parts Warranty at https://obparts.com/obr-red-rhino-new-and-remanufactured-parts-warranty/.
