The powerful Hi-Bias Pro Series limited slip is recommended for greatly enhanced performance in cars, SUVs, pick-ups and vans. It's engineered to deliver more torque, more traction and faster engagement for controlled power transfer and quick reaction to changing load conditions! FORD (Pro Series) Auburn Gear Part Number Size Applications Ratios Side Gear Spline Model Years 542048 7 1/2, 10 Bolt All Ford products with 7 1/2 ring gear (Accepts tone ring for ABS applications) All Ratios 28 Teeth 1978 - Present 542059 8, 10 Bolt All Ford products with 7 3/4 & 8 ring gear (Use Ford D802-4216-B ring gear bolts) All Ratios 28 Teeth 1962 - 1979 542080 8.8, 10 Bolt All Ford products with 8.8 ring gear including IRS applications (Accepts tone ring for ABS applications) All Ratios 28 Teeth 1979 - Present 542054 8.8, 10 Bolt All Ford products with 8.8 ring gear (Accepts tone ring for ABS applications) All Ratios 31 Teeth 1983 - Present 542036 9, 10 Bolt All Ford products with 8 3/4 & 9 ring gear (Use Ford D802-4216-B ring gear bolts) All Ratios 31 Teeth 1957 - 1985 542043 8, 10 Bolt All Ford products with 8 3/4 & 9 ring gear (Use Ford D802-4216-B ring gear bolts) All Ratios 28 Teeth 1957 - 1985 Dodge - Chrysler - AMC (Pro Series) AG Part No. Size Applications Ratios Side Gear Spline Model Years 542051 8 3/4, 10 Bolt All Chrysler products with 8 3/4 ring gear All Ratios 30 Teeth 1957 - 1973 542081 AMC 20, 12 Bolt All AMC 20 axles 3.07 / up 29 Teeth 1968 - 1986 Toyota (Pro Series) AG Part No. Size Applications Ratios Side Gear Spline Model Years 542030 8 7/8, 12 Bolt Landcruiser (1967 & prior must update to 30 Tooth axle shafts) All ratios 30 Teeth 1968 - 1989 General Motors (Pro Series) AG Part No. Size Applications Ratios Side Gear Spline Model Years 542044 7 1/2 & 7 5/8, 10 Bolt All GM products with 7 1/2 & 7 5/8 ring gear 3.23 / up 26 Teeth 1976 - 1988 542045 7 1/2 & 7 5/8, 10 Bolt All GM products with 7 1/2 & 7 5/8 ring gear 3.08 / down 26 Teeth 1976 - 1988 542046 7 1/2 & 7 5/8, 10 Bolt All GM products with 7 1/2 & 7 5/8 ring gear (Accepts tone ring for ABS applications) 3.23 / up 28 Teeth 1988 - Present 542047 7 1/2 & 7 5/8, 10 Bolt All GM products with 7 1/2 & 7 5/8 ring gear (Accepts tone ring for ABS applications) 3.08 / down 28 Teeth 1988 - Present 542060 8.2, 10 Bolt Buick, Oldsmobile, Pontiac with 8.2 ring gear, Non "C" lock axle, 27 Tooth pinion spline 3.36 / up 28 Teeth 1964 - 1971 542061 8.2, 10 Bolt Chevrolet with 8.2 & 8.6 ring gear (Large bearing hub, includes bearings) 3.08 / up 28 Teeth 1964 - 1972 542050 8.5 & 8.6, 10 Bolt All GM products with 8.5 & 8.6 ring gear (Large bearing hub, includes bearings) 2.73 / up 28 Teeth 1971 - 1988 542052 8.5 & 8.6, 10 Bolt All GM products with 8.5 & 8.6 ring gear (Large bearing hub, includes bearings) 2.73 / up 30 Teeth 1989 - Present 542031 8 7/8, 12 Bolt Chevrolet passenger car with 8 7/8 ring gear, "C" axle 4 series case 4.10 / up 30 Teeth 1965 - 1972 542033 8 7/8, 12 Bolt Chevrolet passenger car with 8 7/8 ring gear, "C" axle 3 series case 3.07 - 3.73 30 Teeth 1965 - 1972 542032 8 7/8, 12 Bolt Chevrolet truck with 8 7/8 ring gear, "C" axle 4 series case 3.73 / up 30 Teeth 1964 - 1982 1/2 542034 8 7/8, 12 Bolt Chevrolet truck with 8 7/8 ring gear, "C" axle 3 series case 2.76 - 3.42 30 Teeth 1964 - 1982 1/2 542062 10 Bolt Corvette 2.41 - 3.70 17 Teeth 1963 - 1979 542063 10 Bolt Corvette 4.10 / up 17 Teeth 1963 - 1979 Dana (Pro Series) AG Part No. Size Applications Ratios Side Gear Spline Model Years 542082 Model 44 All Dana 44 models without "C" clips 3.92 / up 30 Teeth 1971 - Present 542083 Model 44 All Dana 44 models without "C" clips 3.73 / down 30 Teeth 1971 - Present 542084 Model 44 All Dana 44 models without "C" clips 3.92 / up 19 Teeth 1970 & Prior 548085 Model 44 All Dana 44 models without "C" clips 3.73 / down 19 Teeth 1970 & Prior Get superb power with more torque delivered to the high traction wheel - even when the loose wheel traction is ZERO! Ford (High Performance Series) AG Part No. Size Applications Ratios Side Gear Spline Model Years 542023 7 1/2, 10 Bolt All Ford products with 7 1/2 ring gear (Accepts tone ring for ABS applications) All ratios 28 Teeth 1978 - Present 542079 8.8, 10 Bolt All Ford products with 8.8 ring gear including IRS applications (Accepts tone ting for ABS applications) All ratios 28 Teeth 1979 - Present 542025 8.8, 10 Bolt All Ford products with 8.8 ring gear (Accepts tone ring for ABS applications) All ratios 31 Teeth 1983 - Present 542090 (TBA) 9 3/4, 12 Bolt All Ford products with 9 3/4 ring gear (Accepts tone ring for ABS applications) All ratios 34 Teeth 1997 - Present 542089 10 1/2, 12 Bolt All Ford products with 10 1/4 ring gear (Accepts tone ring for ABS applications) All ratios 35 Teeth 1984 - Present General Motors (High Performance Series) AG Part No. Size Applications Ratios Side Gear Spline Model Years 542057 7 1/2 & 7 5/8, 10 Bolt All GM products with 7 1/2 & 7 5/8 ring gear 3.23 / up 26 Teeth 1976 - 1988 542058 7 1/2 & 7 5/8, 10 Bolt All GM products with 7 1/2 & 7 5/8 ring gear 3.08 / down 26 Teeth 1976 - 1988 542040 7 1/2 & 7 5/8, 10 Bolt All GM products with 7 1/2 & 7 5/8 ring gear (Accepts tone ring for ABS applications) 3.23 / up 28 Teeth 1988 - Present 542041 7 1/2 & 7 5/8, 10 Bolt All GM products with 7 1/2 & 7 5/8 ring gear (Accepts tone ring for ABS applications) 3.08 / down 28 Teeth 1988 - Present 542018 8.5 & 8.6, 10 Bolt All GM products with 8.5 & 8.6 ring gear 2.73 / up 28 Teeth 1971 - 1988 542022 8.5 & 8.6, 10 Bolt All GM products with 8.5 & 8.6 ring gear 2.73 / up 30 Teeth 1989 - 1998 542029 8.5 & 8.6, 10 Bolt All GM products with 8.5 & 8.6 ring gear 2.56 / down 30 Teeth 1989 - 1998 542097 (TBA) 8.5 & 8.6, 10 Bolt All GM products with 8.5 & 8.6 ring gear Uses LM60349 & LM60312 Diff. bearings 2.73 / up 30 Teeth 1999 - Present 542087 9 1/2, 14 Bolt All GM products with 9 1/2 ring gear All 33 Teeth 1984 - Present Dodge - Chrysler - AMC (High Performance Series) AG Part No. Size Applications Ratios Side Gear Spline Model Years 542072 8 1/4, 10 Bolt All Chrysler products with 8 1/4 & 8 3/8 ring gear (Accepts tone ring for ABS applications) 2.71 / up 27 Teeth 1968 - 1996 542074 8 1/4, 10 Bolt All Chrysler products with 8 1/4 & 8 3/8 ring gear (Accepts tone ring for ABS applications) 2.71 / up 29 Teeth 1997 - Present 542070 9 1/4, 12 Bolt All Chrysler products with 9 1/4 ring gear (Accepts tone ring for ABS applications) 2.71 / up 31 Teeth 1984 - Present 542071 9 1/4, 12 Bolt All Chrysler products with 9 1/4 ring gear 2.71 / up 31 Teeth 1968 - 1983 Dana (High Performance Series) AG Part No. Size Applications Ratios Side Gear Spline Model Years 542091 (TBA) Model 60 All Dana 60 models 4.10 / down 30 Teeth 1963 - Present 542092 (TBA) Model 60 All Dana 60 models 4.56 / up 30 Teeth 1963 - Present 542093 (TBA) Model 60 All Dana 60 models 4.10 / down 35 Teeth 1963 - Present 542094 (TBA) Model 60 All Dana 60 models 4.56 / up 35 Teeth 1963 - Present 542095 (TBA) Model 60 All Dana 60 models 3.31 / down 27 Teeth 1984 - Present 542096 (TBA) Model 60 All Dana 60 models 3.55 / up 27 Teeth 1984 - Present

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