QU40177 Dana 44 4.09 Ratio Spicer OEM Ring and Pinion Kit

QU40177 Dana 44 4.09 Ratio Ring and Pinion Set is a genuine Dana OEM 4.09 ratio matched gear set with pinion bearings, pinion seal, ring gear bolts, pinion nut, pinion washer, diff cover gasket, shims, and small parts. The pinion shaft has 26 splines. These popular 4.09 ratio gear sets were used by Dodge, Ford, GM, International, and Jeep and it will fit many front/rear axle applications from 1953 to 1993.

Also available while supplies last: QU30169U USED Dana 44 4.09 Ratio Ring and Pinion gears

Need More Info? 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:
Product Note
Will Not Fit
Gear Ratio Change
Ring Gear Bolts
Pinion Preload
Kit Components
Matching Parts
Applications

Tech Note 1: Product Note
QU40177 Gear Set has 45 teeth on the ring gear and 11 teeth on the pinion gear. It is a matched, standard cut gear set that fits most Dana 44 axles that have the pinion gear located below the axle center line. The pinion shaft is the 26 spline configuration used on Dana 44 gear sets since the mid 1960s.

Tech Note 2: Will Not Fit
QU40177 will not fit Dana 44 series axles in 1966-1996 Ford F100, F150, Bronco or 1977.5-1996 F250. These Ford models have pinion gears mounted above the axle center line and require a reverse spiral gear set.

Tech Note 3: Gear Ratio Change
If you are doing a gear ratio change, you will also need to change your differential case (the part the ring gear bolts to) if your current ratio is 3.73 or faster. Faster gear ratios have a larger diameter pinion gear than slow ratios so they require a differential case with a different offset. For the Dana 44 axles that can use this gear set, the differential cases are different for 3.73 and numerically lower and 3.92 and numerically higher ratios.

Tech Note 4: Ring Gear Bolts
Ring Gear Bolts are designed to be used once and only once.

Tech Note 5: Pinion Preload
Pinion preload is set using shims on 1993 and older Dana 44 axles.

Tech Note 6: Kit Components
Kit Includes:
Genuine Dana 4.09 ratio, matched, standard cut gear set
Inner and Outer Pinion Bearings with Cups
Pinion Seal, Pinion Nut, Pinion Washer
Pinion Oil Slingers
Ring Gear Bolts
Pinion Depth Shims, Pinion Preload Shims, Differential Shims
Differential Cover Gasket

Tech Note 7: Matching Parts
Related items for QU40177 gear set:
QU50576 Differential Bearing and Seal Kit
QU30170U Used Loaded Dana 44 Diff Case 3.92-up
QU40634 New Empty Dana 44 Diff Case 3.92-up
QU40635 New Loaded Dana 44 Diff Case Assembly with Diff Bearings for 3.92-up
QU50537 Timken® Differential Side Bearing Cup
QU50538 Timken® Differential Side Bearing
QU90009 Axle Service Pack with Gear Marking Compound, Threadlocker, RTV Sealant, Brush
QT1032 Differential Housing Spreader
QT1044 Inner Pinion Bearing Installer
QT1812 Outer Pinion Bearing Cup Installer and for 1994-1999 the Inner Pinion Bearing Cup Installer
QT1815 Inner Pinion Bearing Cup Installer to 1993
QT1115 Differential Side Bearing Installer
QT1035 Diff Press Plate

Applications

Chevy and GMC (Front Axle):
K10/K15/K1500, K20/K25/K2500 May require pinion yoke change to 26 spline): 1960, 1961, 1962, 1963, 1964, 1965, 1966
K20/K25/K2500: 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980
K5 Blazer, Jimmy, K10/K15: 1973, 1974, 1975, 1976, 1977, 1978, 1979

Chevy and GMC (Rear Axle):
C10/C1500 Suburban and truck with Dana 44 axle: 1967, 1968

Dodge (Front Axle):
W100, W200 (May require pinion yoke change to 26 spline): 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966
W100: 1967, 1968, 1969, 1970, 1971, 1972
W200, W250 with Dana 44 axle: 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993

Ford (Front Axle):
F100 (May require pinion yoke change to 26 spline): 1959, 1960, 1961, 1962, 1963, 1964, 1965 
F250 (May require pinion yoke change to 26 spline): 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966
F250 Regular Cab: 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1977.5
Bronco: 1971, 1972, 1973, 1974, 1975, 1976, 1977

IHC (Front Axle):
1/2 ton and 3/4 ton (May require pinion yoke change to 26 spline): 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966
1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975 1100, 1200
Scout: 1974, 1975, 1976, 1977, 1978, 1979, 1980

IHC (Rear Axle):
1100: 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975
Scout: 1974, 1975, 1976, 1977, 1978, 1979, 1980

Jeep (Front Axle):
J-Series truck (May require pinion yoke change to 26 spline): 1962, 1963, 1964, 1965, 1966
J-Series Truck: 1967, 1968, 1969, 1970, 1971, 1972, 1973
Cherokee, Wagoneer, J10, J20: 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985

Jeep (Rear Axle):
Wagoneer: 1967, 1968, 1969, 1970, 1971
1/2 ton truck: 1971, 1972, 1973
CJ5, CJ6: 1972, 1973, 1974, 1975
Cherokee, Wagoneer, J10: 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985