QU40577 7/16" ID Tapered Locking Bushing Cone for Dana Rear Axles fits 1990 and earlier Dana 60 or Dana 70 rear axles in Ford, Dodge, International, and Jeep trucks. QU40577 is an aftermarket replacement split taper axle shaft cone that was redesigned to address the Cone becoming frozen in the tapered axle shaft holes. Sold Individually and may vary in overall length and color.
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Use the handy Links below to access over 40 years of Dan's product and vehicle specific Tech Notes to easily get the information you need for your vehicle's repair, maintenance, or upgrade project!
Dan the Gear Man® Tech Notes: Taper Use with Studs Removal Rear Axle Use Matching Parts Matching Parts in 1972-02 Dodge & Ram SRW Rear Axle Matching Parts in 1967-69 Jeep M715 Rear Axle Matching Parts in Many Dana 70HD Rear Axles Applications
Tech Note 1: TaperQU40577 is a bit shorter than the original Dana Bushing because it does not taper down to a knife edge like the original bushings. The shorter length means the Bushing is less likely to get wedged in the root of the tapered axle shaft hole.
Tech Note 2: Use with StudsThe idea of using a split taper bushing is to eliminate all axle shaft to fastener air gaps thereby minimizing the chance the fasteners loosen up and shear the studs under high load situations. Tapered Axle Shaft Bushings are ONLY used with studs.
Tech Note 3: RemovalTo remove the wedges, they must first be loosened up by vibration so they can expand slightly. Typically, you take off the locking nuts (and washers if present). An air hammer or large hammer/punch combination is then used to apply impact force to the noncritical open areas of the axle shaft flange. Sooner or later, the impact vibration will loosen the tapered wedges which can then be removed with QT1060 or other suitable tool. Never apply impact force to the stud, bushing or lathe center hole of the axle shaft!
Tech Note 4: Rear Axle UseThe original equipment Tapered Bushing part number is QU42009. QU42009 is about 4/10" long and it is used for both axle shafts and Dana 44 closed knuckle steering arms. QU40577 is 5/16" long so it can ONLY be used for rear axle shafts. The steering arms used on Dana 44 closed knuckle front axles have a deeper bore compared to rear axle shafts. So if you need tapered wedge bushings for your Dana 44 closed knuckle steering arm, you need QU42009.
Tech Note 5:
Matching Parts/ToolsQU42009 Original Equipment Dana Split Taper Wedge Bushing for Rear Axle Shafts & Front Steering ArmsQU95036 7/16" All Steel USA Made Lock NutQU40078 Steel Axle Shaft Flange Gasket for most Dodge and Ford Dana 60, Dana 70 AxlesQU15003 Paper Axle Shaft Flange Gasket for Jeep M715 and some IHC and early Dodge AxlesQT1060 Taper Wedge Remover ToolDodge & Ram Shop ManualsFord Shop ManualsJeep Shop Manuals
Tech Note 6: Matching Parts in 1972-2002 Dodge & Ram SRW Rear AxleQU50414 Inner Wheel BearingQU50411 Outer Wheel Bearing CupQU50412 Outer Wheel BearingQU40450 Rear Wheel SealQU40449 Optional Flanged Rear Wheel Seal for 1994-2002QU40078 Steel Axle Shaft Flange GasketQU15002 Spindle Lock Washer for 1972-1979.5QU40077 Spindle Lock Nut for 1979.5-1993QU40089 Spindle Nut Lock Wedge for 1979.5-1993QU40118 Spindle Lock Nut for 1994-2002QU40115 Spindle Nut Lock Wedge for 1994-2002QU50413 Outer Wheel Bearing CupQU90018 Pyroplex Synthethic GreaseQU40367 Dana 70 Differential Cover GasketQU42030 Dana 70 Reusable Differential Cover GasketQT1500 Wheel Seal Installer for QU40450 Seal 1979-1993QT1510 Rear Wheel Seal Installer for QU40450 Seal 1994-2002QT1503 Rear Wheel seal Installer for QU40449 Seal 1994-2002QT1009i Spindle Nut Socket for 1979.5-2002QT5500 Wheel Bearing PackerDodge & Ram Shop Manuals
Tech Note 7: Matching Parts in 1967-1969 Jeep M715 Rear AxleQU50402 Timken Inner Wheel Bearing CupQU50568 Timken Outer Wheel Bearing CupQU50569 Timken Outer Wheel BearingQU50717 Rear Wheel SealTK8338 Premium Rear Wheel Bearing Kit with ToolsTK8339 Premium Rear Wheel Bearing Kit without ToolsQU15003 8 Bolt Rear Axle Shaft Flange GasketQU50403 Timken Taper BearingQU15004 Spindle Nut Lock WasherQU90018 Pyroplex Synthetic GreaseJeep Shop Manuals
Tech Note 8: Matching Parts in Many Dana 70HD Rear AxlesQU50402 Timken Differential Bearing CupQU40078 Axle Shaft Flange Gasket, most Dodge, and FordQU30010 Axle Shaft Flange Gasket, Chevy, and GMCQU50403 Timken Taper BearingQU90008 Gear Marking CompoundQU40367 Dana 70 Differential Cover GasketQU42030 Reusable Dana 70 Differential GasketTM4400 Pinion and Differential Bearing Service Manual for Dana Monobeam AxlesQT1032 Differential Case Spreader
Applications:Dodge:W100, D200, W200 Dana 60 Rear Axle Shaft: 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968D200, W200 Dana 60 Rear Axle up to approx 4-1-1976 build date: 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976D/W200, D/W250 series with 6200 pound capacity Dana 60 Rear Axle: 4-2-1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 11-12-1990D/W300, D/W350 with standard Dana 70 Rear Axle: 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991 up to 11-12-1990 build date
Ford:Dana 60 Rear Axle: 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966Those Dana 60 Rear Axle with 7/16" Hub to Axle Shaft Studs: 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979Those Dana 70 Rear Axle with 7/16" Hub to Axle Shaft Studs: 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979
International:Under Construction
Jeep:FC170 with Dual Rear Wheels: 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967J-Series with Dual Rear Wheels: 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970M715, M725, M726 Military 1-1/4 Ton Trucks: 1967, 1968, 1969
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