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Filthy Motorsports: Store > Dana 70
Dana 70 Axle Parts, Gears, and Upgrades

Dana 70 Axle Models:
Dana 70 (23 or 32 Spline)
Dana 70-B (35 Spline)
Dana 70-U (Small Pinion)
Dana 70-2U (Small Pinion)
Dana 70-1SU Super 70 (37 Spline)
Dana 70-HD (Heavy Duty)
Dana 70-3HD (Heavy Duty)
Dana 70 High Pinion (Front Axle)

Axle Specifications:
Ring Gear Diameter: 10.500
Diff Cover Bolts: 10
Ring Gear Bolts: 12
Axle Spline Count: 37, 35, 32, 23
Axle Shaft Style: Full-Floating
C-Clips: No
Pinion Support: No
Pinion Nut: 1-5/16"
Pinion Crush Sleeve: No
Carrier Breaks: 4.10 / 4.56
Dropout Carrier: No
Max Output Torque: 4,663 ft-lbs
Max Cont. Torque: 2,000 ft-lbs

Dana 70 Torque Specifications:
Pinion Preload New: 22 to 35 in-lbs
Pinion Preload Reused: 12 to 15 in-lbs
Ring Gear Backlash: .006" to .010"
Ring Gear Bolt Torque: 110 ft-lbs
Carrier Bearing Caps: 80 ft-lbs

Dana 70U Torque Specifications:
Pinion Preload New: 17 to 30 in-lbs
Pinion Preload Reused: 8 to 10 in-lbs
Ring Gear Backlash: .006" to .010"
Ring Gear Bolt Torque: 110 ft-lbs
Carrier Bearing Caps: 80 ft-lbs

Popular Applications:
Dodge W200 - W350 1960 - 1993 F / R
Dodge D250 / D350 1965 - 1993 Rear
Ford F-250 Super Duty 2001 - 2011 Rear
Ford F-350 (Super Duty) 1980 - 2002 Rear
Dodge Ram 2500 / 3500 1994 - 2002 Rear
Chevy C30 / C35 1974 - 1998 Rear
GMC K30 / K35 1970 - 2000 Rear

Axle Images:

Axle Notes:
Dana 70 - Uses Dana 60 pinion and carrier bearings with larger carrier and gears.

Dana 70U - Features an offset pinion for 3.54 and numerically lower gear ratios.

Dana 70HD - Heavy Duty model uses larger Dana 80 carrier and bearings.

Dana High Pinion - Parts listed below are not compatible with reverse rotation front axles.

Due to the many unusual variations of the Dana 70 axle, the customer must verify their axle configuration prior to ordering. A 20% restocking fee applies to all returns.

Carrier Bearings:
Dana 70, 70U: Timken 387A / 382S (2.25" ID / 3.8125" OD)
Dana 70HD: Timken 469 / 453X (2.25" ID / 4.125" OD)

Axle Details
The Dana 70 axle has been around for decades and is commonly found under full-size GM, Dodge, and Ford trucks. The axle is available in both front and rear applications and features a large 10.5" ring gear. Standard D70 models have 30 or 35 spline axles, however, the Dana "Super" 70 is the holy grail of the series with massive 37 spline shafts. Dana 70 axles look similar to the D60 and D80 with a 10 bolt asymmetrical cover with a fill plug on the axle centerline, however, the easiest way to spot the D70 is the "70" cast into the housing.


Note: This axle has a Carrier Break and gear changes may require a different carrier or thick gears.
Don't see the particular axle or drivetrain parts you need? We carry more products and brands than we can make available on this website so give us a call or send us an email and chances are we can get what you need at a great price.