Gross axle weight rating
Axle GAWR ( Max ) Manufacturer
Dana 30 2,770 lbs Dana Holding Corporation
Dana 35 2,770 lbs Dana Holding Corporation
Dana 44 3,500 lbs Dana Holding Corporation
Dana 50 5,000 lbs Dana Holding Corporation
Dana 60 6,500 lbs Dana Holding Corporation
Dana S 60 7,000 lbs Dana Holding Corporation
Dana 70 10,000 lbs Dana Holding Corporation
Dana 80 12,000 lbs Dana Holding Corporation
Dana S 110 14,706 lbs Dana Holding Corporation
Dana S 130 16,000 lbs Dana Holding Corporation
Ford 9-inch axle 3,600 lbs Ford Motor Company
Ford 8.8 axle 3,800 lbs Visteon
Sterling 10.5 axle 9,750 lbs Visteon
10.5 Corporate 14 Bolt Differential 8,600 lbs American Axle
11.5 AAM 10,000 lbs American Axle
10.5 AAM 9,000 lbs American Axle
Saginaw 9.5-inch axle 6,000 lbs American Axle
Importance
Road damage rises steeply with axle weight , and is estimated `` as a rule of thumb ... for reasonably strong pavement surfaces '' to be proportional to the fourth power of the axle weight . [ 1 ] This means that doubling the axle weight will increase road damage ( 2x2x2x2 ) =16 times . [ 2 ] [ 3 ] For this reason trucks with a high axle weight are heavily taxed in most countries . Examples of GAWR on common axles .
The gross axle weight rating (GAWR) is the maximum distributed weight that may be supported by an axle of a road vehicle. Typically, GAWR is followed by either the letters FR or RR, which indicate front or rear axles respectively.