QU30170U Used Dana 44 Slow Ratio Loaded Open Differential Case is a good used genuine Dana OEM loaded differential case for Dana 44 front and rear axles with 3.92 or numerically higher gear ratios and 30 spline axle shafts. These popular diffs were used by Dodge, Ford, GM, International, and Jeep and they will fit many front/rear axle applications from 1967 to 1993. QU30170U includes the Diff with installed “Spider Gear” set. QU30170U good used open (non-locking) differentials are taken from axle assemblies our Research and Development Department had for part verification and tool design purposes. Available while supplies last.

Also see QU40635 New Dana 44 Loaded Diff and QU40634 New Dana 44 Empty Diff

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:
Side Gears
Product Note
3.92-5.89 Ratio Gear Sets
Do Not Reuse Ring Gear Bolts
Early vs. Late Diff Cases
Matching Parts
Applications

Tech Note 1: Side Gears
QU30170U Differential has 30 spline side gears.

Tech Note 2: Product Note
These are USED differentials. The teeth on the gears look good but since there are so many use variables, we make no warranty as to durability once the diff is installed!

Tech Note 3: 3.92-5.89 Ratio Gear Sets
QU30170U Differentials fit most 1967-1993 Dana 44 axles with 3.92 to 5.89 ratio gear sets. If you need a differential for 2.73 to 3.73 ratio gear sets, see QU40633.

Tech Note 4: Do Not Reuse Ring Gear Bolts
Ring Gear Bolts are designed to be used once and only once. Order 10 QU40209 ring gear bolts along with this differential.

Tech Note 5: Early vs. Late Diff Cases
For more information about differences between early and late production Dana 44 differential cases including spline and bearing changes, see my 1953-1993 Dana 44 Diff Tech Page.

Tech Note 6: Matching Parts
Related items for QU30170U Dana 44 Diff:
QU50576 Differential Bearing and Seal Kit for 1993 and older axles
QU40177 New Genuine Dana 4.09 Ratio Gear Set with Pinion Bearings and small parts
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
QU40214 Dana 44 Cover Gasket
QU40215 Pinion Seal to 1993
QU40209 Ring Gear Bolt
QU50538 Differential Side Bearing
QU50537 Differential Side Bearing Cup
QU40028 Inner Pinion Bearing Slinger
QU40448 Inner Pinion Oil Baffle
QU40002 Outer Pinion Slinger
QU40311 Diff and Pinion Shim Kit
QU40009 Pinion Lock Nut
QU40010 Pinion Yoke Washer
QU90009 Axle Service Pack with Gear Marking Compound, Threadlocker, RTV Sealant, Brush
QT1032 Differential Housing Spreader
QT1044 Inner Pinion Bearing Installer
QT1812 Pinion Bearing Cup Installer
QT1115 Differential Side Bearing Installer
QT1035 Diff Press Plate

Applications:

Chevy and GMC (Front Axle):
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

Dodge (Front Axle):
W100: 1969, 1970, 1971, 1972
W200, W250 with Dana 44 axle: 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, F150: 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982
F250 Regular Cab: 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1977.5
Bronco: 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982

IHC (Front Axle):
1100, 1200: 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975
Scout: 1974, 1975, 1976, 1977, 1978, 1979, 1980

IHC (Rear Axle):
Scout: 1974, 1975, 1976, 1977, 1978, 1979, 1980

Jeep (Front Axle):
J-Series Truck: 1970, 1971, 1972, 1973
Cherokee, Wagoneer, J10, J20: 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985

Jeep (Rear Axle):
CJ5, CJ6: 1972, 1973, 1974, 1975
Cherokee, Wagoneer, J10: 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985