1960-1970 - Dana 44 closed knuckle. 1971-1980 - Dana 44 open knuckle. (note: pre '73s had small 260x axleshaft u-joints. These are the same size as Dana 30s).

Note: Corporate 10 bolt front axles were also used intermixed with 44s during the 1977-1980 time period).

Dana 44 ring gear diameter = 8.75"

Available ratios = 2.73, 3.07, 3.42, 3.54, 3.73, 4.09, 4.55

Width = 69"

1981-1987 - Corporate 10 bolts, 1 5/16"x28 spline shafts. 1988-1991 Blazers and Suburbans - Corporate 10 bolts, 1 5/16"x30 spline shafts.

All 1/2 ton axles after mid-'78 used internal locking hubs retained by locking rings.

Note: with the change to the open style knuckle in 1971 came the retention of the steering arm by 3 large 5/8" studs with cone washers and locking nuts. Subsequent to this, the steering arm was retained by 4 3/8" stud/nut arrangements.

1960-1970 - Dana 44 closed knuckle. 1971-1980 - Dana 44 open knuckle. (note: pre '73s had small 260x axleshaft u-joints. These are the same size as Dana 30s).

Note: Corporate 10 bolt front axles were also used intermixed with 44s during the 1977-1980 time period).

Dana 44 ring gear diameter = 8.75"

Available ratios = 2.73, 3.07, 3.42, 3.54, 3.73, 4.09, 4.55

Width = 69"

1981-1987 - Corporate 10 bolts, 1 5/16"x28 spline shafts. 1988-1991 Blazers and Suburbans - Corporate 10 bolts, 1 5/16"x30 spline shafts.

Note: pre mid-1978 3/4 tons used large external style locking hubs that attached with 6 bolts.

All 3/4 ton axles after mid-'78 used internal locking hubs retained by locking rings.

Note: with the change to the open style knuckle in 1971 came the retention of the steering arm by 3 large 5/8" studs with cone washers and locking nuts. Subsequent to this, the steering arm was retained by 4 3/8" stud/nut arrangements.

Dana 60

1977-1987 and 1988-1991 crewcabs (4 door) -

9.75" ring

Available Ratios = 3.73, 4.10, 4.56

8 lug.

1 1/2"x35 spline shafts.

1 5/16"x19 spline outer stubs.

Open knuckle

Width = 69" (for single wheel applications only)

Locking hubs are of internal design.

Some C.U.C.V. (military) GM trucks in the 1984-1987 period were offered with a Trac-Lok limited slip differential.

Ford 1974-1979 F150 (1978-1979 were Reverse cut)

All are driver's side diff

Ford 1974-1979 (1978-1979 were Reverse cut) F350 and HD F250 1986-present F350

1986-present F350

All are driver's side diff

Used in 1967-1968 light duty Jeepsters (C101)

Ring gear diameter = 7.25"

Available ratios = 3.31, 3.73, 4.27, 4.88

Note: These rear ends used tapered, two-piece axleshafts (similar to an AMC 20 rear). All were 5 on 5 1/2" lug pattern A Powr-Lok limited slip differential was offered

Used in 1950 to 1975 Jeep MB, M38, CJ2, CJ3, CJ5, & CJ6; and part year 1986 CJ7

Used in 1967-1972 /heavy duty Jeepsters (C101); 1967-1983 J10 trucks, 1967-1968 J20 trucks and 1967-1980 Wagoneer & Cherokee

Also used as an option in 1997-1999 TJs

Ring gear diameter = 8.75"

Available ratios = 2.72 - 5.89

Width: Varying widths from 58" - 62" FSJ; and 50.5" (1950-1975); (1986 CJ& = 54.5"; TJ 60") Axle shaft diameter: 1969-1980 (and 1986 CJ7) = 1 5/16"x30 spline one-piece Flanged.

All were 5 on 5 1/2" lug pattern

Note: 1950-1968 had 1 1/4"x19 spline two-piece tapered axleshafts (similar to an AMC 20 rear) A Powr-Lok limited slip differential was offered till 1968; from 1969 and later a Trac-Lok limited slip differential was offered.

Used in 1969-1983 Jeep J20 trucks

Ring gear diameter = 9.75"

Available ratios = 3.73, 4.10, 4.88 (1969-1973); 3.73, 4.10 (1974-1983)

Axle shaft diameter: 1969-1973 (medium truck) = 1 1/2"x35 spline semi-floating (5 on 5 1/2" lug pattern); 1969-1973 (heavy truck) and 1974-1983 = 1 5/16"x30 spline full-floating (8 on 6 1/2" lug pattern)

A Powr-Lok limited slip differential was offered till 1973; from 1974 and later a Trac-Lok limited slip differential was offered.

Used in 1941-1965 Jeep MB, M38, CJ2, CJ3, CJ5 & CJ6

Closed knuckle

Ring gear diameter = 7.75"

Available ratios: 4.27, 4.88, 5.38

Width: 51"

Used in 1966-1971 Jeep M38A1, CJ5 & CJ6

Closed knuckle

Ring gear diameter = 7.25"

Available ratios: 3.54, 3.73, 4.27, 4.88, 5.38

Width = 51"

Used in 1971 to present Jeep CJ5, CJ6, CJ7, CJ8, YJ (Wrangler) & TJ, and 1971-1973 Cherokee & Wagoneers

Open knuckle

Ring gear diameter = 7.25"

Available ratios = 3.07, 3.31, 3.54, 3.73, 4.10, 4.27, 4.88

Width: Narrow track CJ = 53" Wide track CJ = 56" Wrangler = 60"

Axle shaft diameter = 1 5/32"x27 spline Inner; 1 5/32"x27 spline Outer stub

Note: 1987 and later 30s have Reverse Rotation ring & pinion gears

Note: 1971-1972 Cherokees and Wagoneers had closed front knuckles

No limited slip or locking differential was offered.

Used in 1967 to 1991 FSJ (J10, J20 trucks, Wagoneer, Cherokee)

Ring gear diameter = 8.75"

Available ratios = 2.72 - 5.89

Width: Varying widths from 58" - 62"

Note: Beginning in 1980, the differential was on the driver's side of the vehicle Closed knuckle till 1969; 1970 and later are open knuckle From 1967-1969, all 44 fronts used the 5-74x u joint inside of a closed knuckle From 1970-1973, all 44 fronts used the smaller 5-260x axle shaft u-joint (same size as a Dana 30)

Axle shaft diameter = 1 5/16"x30 spline Inner; 1 1/4"x19 spline Outer (1974-present), 1 1/8"x10 spline Outer (1967-1973) Note: 1967-1969 trucks had 1 1/4"x19 spline Inner axles

No limited slip or locking differential was offered.

Dana 30

3.54 and down; 3.73 and up