What Are the Torque Specs for a Pinion?

A pinion is a smaller gear inside a larger gear that drives a 90-degree angle in a differential drive. Each pinion has a torque specification. The following is an extensive list of torque specifications for pinion-bearing preload setups on different truck manufacturers, all in inch-pounds.

AMC Trucks

  • New:

    AMC MODEL 20: 14-19

    AMC MODEL 35: 12-15

    Used:

    AMC MODEL 20: 6-8

    AMC MODEL 35: 6-7

GM Trucks

  • New:

    OLDS/PONT D/O: 14-19

    63-79 CORVETTE: 14-19

    55 CHEVY: 14-18

    7.2": 11-14

    7.5": 12-15

    7.75": 12-15

    8.2": 12-15

    8.2" OLDS/PONT: 12-15

    8.5" IFS: 14-19

    8.5": 14-19

    9.5": 15-22

    12" PASSENGER: 14-19

    12" TRUCK: 13-15

    14" TRUCK: 20-35

    12-1/4": PRESET

    Used:

    OLDS/PONT D/O: 6-7

    63-79 CORVETTE: 6-8

    55 CHEVY: 6-8

    7.2": 6-7

    7.5": 6-7

    7.75": 6-7

    8.2": 6-7

    8.2" OLDS/PONT: 6-7

    8.5" IFS: 6-8

    8.5": 6-8

    9.5": 7-9

    12" PASSENGER: 6-8

    12" TRUCK: 6-7

    14" TRUCK: 8-11

Chrysler Trucks

  • New:

    7-1/4": 2-14

    8-1/4": 12-15

    8-3/4" '41': 13-15

    8-3/4" '42': 15-25

    8-3/4" '89': 14-19

    9-1/4": 14-19

    Used:

    7-1/4": 6-7

    8-1/4": 6-8

    8-3/4" '41': 6-8

    8-3/4" '42': 7-10

    8-3/4" '89': 6-9

    9-1/4": 6-9

Dana Spicer Trucks

  • New:

    DANA 25: 12-15

    DANA 27: 12-15

    DANA 28: 15-25

    DANA 30: 10-30

    DANA 35: 15-25

    DANA 44: 10-30

    DANA 50: 14-19

    DANA 60,61,70U: 10-30

    DANA 70 & 70HD: 10-30

    DANA 80: 25-40

    Used:

    DANA 25: 6-7

    DANA 27: 6-7

    DANA 28: 7-12

    DANA 30: 5-15

    DANA 35: 7-12

    DANA 44: 5-15

    DANA 50: 6-9

    DANA 60,61,70U: 5-15

    DANA 70 & 70HD: 5-15

    DANA 80: 9-11

Ford Trucks

  • New:

    7.5": 16-28

    8.0": 12-14

    8.7": 14-19

    8.8": 16-29

    9" OEM R&P: 22-32

    9" NON OEM: 22-32

    9" DAYTONA: 14-16

    9-3/8": 14-16

    10-1/4": 20-35

    Used:

    7.5": 8-14

    8.0": 6-7

    8.7": 6-8

    8.8": 8-14

    9" OEM R&P: 8-14

    9" NON OEM: 8-14

    9" DAYTONA: 6-8

    9-3/8": 6-8

    10-1/4": 6-8

Toyota Trucks

  • New:

    PASSENGER: 11-13

    TRUCK w/o V6: 12-15

    TRUCK: V6: 14-17

    Used:

    PASSENGER: 5-6

    TRUCK w/o V6: 5-6

    TRUCK: V6: 5-6