Special Order
Prerunner/Trail Series Transmission; TH400; Fits w/GM SB/BB 2WD w/Auto Valve w/1.875 Spicer Yoke; Max 600 HP/550 ft/lbs Torque; w/4in Tailshaft; w/o SpeedometerDrivenGear/Housing;
The B&M TH-400 PreRunner/Trail automatic transmission is for RWD GM SB/BB applications. This transmission features a large diameter bushing for use with a large diameter yoke (1-7/8 in) and includes a deep, cast aluminum pan. This transmission also features an automatic/forward valve body, a 2.48:1 first gear ratio, 1.48:1 second gear, rebuilt front pump (utilizes B&M pressure regulator spring and shims), all new B&M high performance friction plates, new intermediate roller clutch, new kickdown band with welded anchors, machined center support with new case saver ring, all new thrust bearings and races, and new adjustable modulator and silencer ring, Max 600 HP / 550 Ft/Lbs. Intended for off road/trail use.
The B&M TH-400 PreRunner/Trail automatic transmission is for RWD GM SB/BB applications. This transmission features a large diameter bushing for use with a large diameter yoke (1-7/8 in) and includes a deep, cast aluminum pan. This transmission also features an automatic/forward valve body, a 2.48:1 first gear ratio, 1.48:1 second gear, rebuilt front pump (utilizes B&M pressure regulator spring and shims), all new B&M high performance friction plates, new intermediate roller clutch, new kickdown band with welded anchors, machined center support with new case saver ring, all new thrust bearings and races, and new adjustable modulator and silencer ring, Max 600 HP / 550 Ft/Lbs. Intended for off road/trail use.
- Deep Aluminum Pan
- Intended For Off Road Use
Application Summary:
| Year | Make/Model |
|---|---|
| Fits | Automatic valve body applications. Use with large 1.875 Spicer yoke for 2 wheel drive models.Has 4 inch tailshaft and 7 inch separation on top bellhousing bolts. Transmission shipped without speedometer driven gear or housing. |