Differential Specifications

DIFFERENTIAL ASSEMBLY SPECIFICATIONS (DANA 50, 60 & 80)

Application

In. (mm)

Axle Shaft End Play

Non-Adjustable

Maximum Spread Of Rear Axle

.010 (0.25)

Ring Gear Backlash Between Ring Gear & Pinion

.005-.008 (.13-.20)

Ring Gear Backlash Maximum Variation Between Teeth

.002 (.05)

Total (Pinion Plus Differential) Preload With New Bearings

Add 6-8 (0.7-0.9)

INCH Lbs. (N.m)

Pinion Bearing Preload

Dana 50 & 60

New Bearings

⁽¹⁾

Used Bearings

⁽²⁾

Dana 80

New Bearings

20-40 (2.26-4.53)

⁽¹⁾	Tighten new pinion bearing nut to a rotating torque of 15-30 INCH lbs. (1.7-3.4 N.m).

⁽²⁾	Tighten original pinion bearing nut to a rotating torque of 5 INCH lbs. (0.56 N.m ) greater than initial reading taken at disassembly.

DIFFERENTIAL ASSEMBLY SPECIFICATIONS (FORD 10.50")

Application

In. (mm)

ABS Sensor Air Gap

0.005-0.045 (0.127-1.143)

Differential Case Maximum Runout

0.003 (0.08)b

Pinion Flange Maximum Radial Runout In Assembly

0.012 (.305)

Ring Gear Maximum Backface Runout

.004 (.102)

Ring Gear Backlash Between Ring Gear And Pinion Teeth

⁽¹⁾

Ring Gear Backlash Maximum Variation Between Teeth

.004 (.102)

INCH Lbs. (N.m)

Pinion Bearing Preload

New Bearings

16-29 (1.8-3.3)

Used Bearings

8-14 (0.9-1.5)

⁽¹⁾	Maximum is 0.008-0.015" (0.20-0.38 mm). Preferred is 0.012-0.015" (0.31-0.38m)