Differential Setup Specifications

The following are recommended Differential Set-Up Specifications for various differentials. If in doubt, consult our staff of differential parts specialists.

AMC

Differential Model
Pinion Bearing Preload (New)
(inch/lbs)
Pinion Bearing Preload (Used)
(inch/lbs)
Backlash
(.001 in)
Ring Gear Bolt Torque
(Foot lbs.)
Bearing Cap Torque
(Foot Lbs.)
MODEL 20 14-19 6-8 6-10 65 65
MODEL 35 12-15 6-7 6-10 55 55

CHRYSLER

Differential Model
Pinion Bearing Preload (New)
(inch/lbs)
Pinion Bearing Preload (Used)
(inch/lbs)
Backlash
(.001 in)
Ring Gear Bolt Torque
(Foot lbs.)
Bearing Cap Torque
(Foot Lbs.)
7.25″ 12-14 6-7 6-10 55 50
8″ IFS 12-15 6-8 6-10 55 60
8.25″ 12-15 6-8 6-10 55 60
8.75″ ’41’ 13-15 6-8 6-10 55 90
8.75″ ’42’ 15-25 7-10 6-10 55 90
8.75″ ’89’ 14-19 6-9 6-10 55 90
9.25″ 14-19 6-9 6-10 65 75
9.25″ Front 15-35 10-20 5-7 103 63
Chrysler/AAM 10.5″ 15-25 10-20 5-7 175 120
Chrysler/AAM 11.5″ 25-45 10-20 5-7 175 175

DANA SPICER

Differential Model
Pinion Bearing Preload (New)
(inch/lbs)
Pinion Bearing Preload (Used)
(inch/lbs)
Backlash
(.001 in)
Ring Gear Bolt Torque
(Foot lbs.)
Bearing Cap Torque
(Foot Lbs.)
DANA 25 12-15 6-7 6-10 55 50
DANA 27 12-15 6-7 6-10 55 50
DANA 28 10-13 5-6 6-10 55 50
DANA 30 12-15 6-8 6-10 55 60
DANA 44 14-19 6-9 6-10 55 60
DANA 50 14-19 6-9 6-10 65 60
DANA 60,61,70U 17-30 8-10 6-10 110 80
DANA 70 & 70HD 20-35 8-10 6-10 110 80
DANA 80 25-40 9-11 4-10 175 80

FORD

Differential Model
Pinion Bearing Preload (New)
(inch/lbs)
Pinion Bearing Preload (Used)
(inch/lbs)
Backlash
(.001 in)
Ring Gear Bolt Torque
(Foot lbs.)
Bearing Cap Torque
(Foot Lbs.)
7.5″ 14-19 6-8 11-16* 60 60
8.0″ 12-14 6-7 10-15* 60 60
8.7″ 14-19 6-8 10-15 60 60
8.8″ 14-19 6-8 11-16* 60 60
9″ OEM R&P 13-15 6-7 10-16 70 60
9″ NON OEM 13-15 6-7 6-12 70 60
9″ DAYTONA 14-16 6-8 6-12 70 60
9-3/8″ 14-16 6-8 10-15 70 60
9.75″ 15-19 6-8 10-15 75 70
10.25″ & 10.5″ 20-35 6-8 11-16 95 80

GM

Differential Model
Pinion Bearing Preload (New)
(inch/lbs)
Pinion Bearing Preload (Used)
(inch/lbs)
Backlash
(.001 in)
Ring Gear Bolt Torque
(Foot lbs.)
Bearing Cap Torque
(Foot Lbs.)
Olds/Pontiac Dropout 14-19 6-7 6-10 55 60
’63-’79 CORVETTE 14-19 6-8 6-10 55 60
’55 CHEVY Dropout 14-18 6-8 6-10 55 60
7.25″ 11-14 6-7 6-10 55 60
7.5″ 12-15 6-7 6-10 65 60
7.625″ 2-Cut OEM 12-15 6-7 3-6 65 60
7.75″ 12-15 6-7 6-10 65 60
8″ 2-Cut OEM 12-15 6-7 3-6 65 60
8.2″ Olds/Pontiac 12-15 6-7 6-10 55 60
8.25″ IFS 14-19 6-8 6-10 65 55
8.5″ 14-19 6-8 6-10 65 60
8.625″ 2-Cut OEM 14-19 6-8 3-6 65 60
8.875″ 12 Bolt Car 14-19 6-8 6-10 55 60
8.875″ 12 Bolt Truck 13-15 6-7 6-10 55 60
9.25″ IFS 15-22 7-9 6-10 75 80
9.5″ 15-22 7-9 6-10 103 63
10.5″ PASSENGER 20-35 8-11 6-10 120 136
11.5″ TRUCK 25-45 10-20 3-10 175 153
H072″ TRUCK Preset 6-10 120 175

TOYOTA

Differential Model
Pinion Bearing Preload (New)
(inch/lbs)
Pinion Bearing Preload (Used)
(inch/lbs)
Backlash
(.001 in)
Ring Gear Bolt Torque
(Foot lbs.)
Bearing Cap Torque
(Foot Lbs.)
Passenger 11-13 5-6 6-9 55 60
7.5″ & 8″ –  4 Cyl 12-15 5-6 6-10 70 70
8″ V6 & Turbo, 8″ Reverse 14-17 5-6 6-10 70 70
8″ Clamshell Front 14-17 5-6 6-10 70
8.4″ Tacoma 15-18 5-6 6-10 70 70
9″ Clamshell Front 15-22 5-6 6-10 70
9.5″ Landcruiser 12-15 5-6 6-10 70 70
10.5″ Tundra 20-25 5-6 6-10 100 100

SUZUKI

Differential Model
Pinion Bearing Preload (New)
(inch/lbs)
Pinion Bearing Preload (Used)
(inch/lbs)
Backlash
(.001 in)
Ring Gear Bolt Torque
(Foot lbs.)
Bearing Cap Torque
(Foot Lbs.)
Samurai 12-15 5-6 6-10 70 70

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