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clinebarger · 03-20-2017, 08:01 PM

The 1 speed full time AWD Borg Warner 4481 from GMT-800 Cadillac Ecalades can easily take 500 ft lbs, No electronics & light weight., Splits the torque 40% front, 60% rear at all times.

The 1 speed full time AWD New Process 149 from a GMT-800 Silverado SS can handle 400-450 ft lbs, No electronic, Little heavier than the BW4481, "Normally" Splits the torque 38% front, 62% rear, But can apply 100% torque to the front or rear wheels via a "Viscous Coupler"

The BW4481 works better with "stability control", Lets say the right front wheel losses traction, The stability control will apply the right front brake & applies engine torque to the left front wheel. Without stability control the front diff will act just like a open diff.....All 40% of torque will be applied to the spinning front wheel.

The NP149 doesn't rely on stability control, The viscous coupler handles all the Torque Biasing, The more slip one axle has.....The more torque that is redirected to the other axle.

03-20-2017, 08:01 PM	#6
clinebarger Senior Member Join Date: May 2009 Location: Fort Worth, TX Posts: 6,370	Re: AWD trans The 1 speed full time AWD Borg Warner 4481 from GMT-800 Cadillac Ecalades can easily take 500 ft lbs, No electronics & light weight., Splits the torque 40% front, 60% rear at all times. The 1 speed full time AWD New Process 149 from a GMT-800 Silverado SS can handle 400-450 ft lbs, No electronic, Little heavier than the BW4481, "Normally" Splits the torque 38% front, 62% rear, But can apply 100% torque to the front or rear wheels via a "Viscous Coupler" The BW4481 works better with "stability control", Lets say the right front wheel losses traction, The stability control will apply the right front brake & applies engine torque to the left front wheel. Without stability control the front diff will act just like a open diff.....All 40% of torque will be applied to the spinning front wheel. The NP149 doesn't rely on stability control, The viscous coupler handles all the Torque Biasing, The more slip one axle has.....The more torque that is redirected to the other axle.