0
0
Shop By Vehicle
Top Categories
All Categories

Top Categories

All Categories


Account Login
1-800-345-4545
Gift Cards
Track Order
Help
Richmond Gear 79-0099-1
Mail-In Rebate
Richmond®Spring Rebate
Expires on: April 30, 2019

Purchase any qualifying Richmond Products and Receive up to $105!

Richmond Gear GM 12-Bolt Pro Gear Ring and Pinion Set Ratio: 4.11

836-79-0099-1

Free Shipping Ships
Save $20 off $200, $50 off $500 and $100 off $1000. Enter Promotion Code: SAVE100exclusions apply

$370.91
Richmond Gear GM 12-Bolt Pro Gear Ring and Pinion Set Ratio: 4.11 $370.91
Out of stock
QTY
GM 12-Bolt Pro Gear Ring and Pinion Set
  • Ratio: 4.11
  • Teeth: 37-9
  • Richmond Gear 79-0099-1 Details

    GM 12-Bolt


  • Designed For Drag Racing

  • Specifications:

    Axle Type
    GM 12 Bolt
    Cover Bolt Quantity
    12
    Pinion Gear Tooth Quantity
    9
    Pinion Spline Count
    30
    Ring Gear Bolt Quantity
    12
    Ring Gear Diameter
    8.875
    Ring Gear Material
    9310 Steel
    Ring Gear Tooth Quantity
    37
    Ring Gear Rotation
    Standard
    Pinion Shaft Diameter
    1.625
    Quantity
    Sold as a set
    Ring Gear Bolts
    12
    Pinion Shaft Diameter (in.)
    1.625
    Pinion Shaft Diameter (in.)
    1.625
    Pinion Gear Teeth
    9
    Ring Gear Teeth
    37
    Installation Kit Included
    No
    Ring and Pinion Ratio
    4.11:1
    Differential Carrier Break
    3.90 and Higher
    Cover Bolts
    12
    Carrier Series
    4
    Manufacturer's Part Number:
    79-0099-1
    Shipping Weight:
    14.35
    Package Height:
    15.4
    Package Depth:
    5.4
    Package Width:
    11.1

    Richmond's Pro Gear Ring and Pinion Sets are designed to resist breakage under harsh racing conditions. These race only gear sets are manufactured of professional quality, high performance materials and engineered for faster and more reliable performance.

    Does Richmond Gear 79-0099-1 fit your vehicle?

    Narrow Results
    Filter By Year
    Filter By Make
    Filter By Model
    Filter By SubModel
    Filter By EngineType
    Filter By CC
    Filter By Liter
    Filter By Aspiration

    1968-1972 BUICK SPORTWAGON

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972 GMC SPRINT

    • CC: 5031
    • Liter: 5.0
    • SubModel: CUSTOM
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1973 CHEVROLET CHEVELLE

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: DELUXE
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1967-1969 CHEVROLET CAPRICE

    • CC: 4098
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1971-1972 BUICK LESABRE

    • EngineType: ALL
    • SubModel: ALL

    1971-1972 BUICK GS 455

    • EngineType: ALL
    • SubModel: ALL

    1965 PONTIAC LEMANS

    • CC: 3524
    • Liter: 3.5
    • SubModel: BASE
    • CUI: 215
    • EngineType: L6 ( 3.5 L / 215 )

    1972 CHEVROLET CAPRICE

    • CC: 7441
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1965-1967 OLDSMOBILE DELTA 88

    • CC: 6966
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 425
    • EngineType: V8 ( 7.0 L / 425 )

    1972 CHEVROLET IMPALA

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1971-1972 CHEVROLET CHEVELLE

    • CC: 7441
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1971 OLDSMOBILE DELTA 88

    • EngineType: ALL
    • SubModel: CUSTOM

    1965 CHEVROLET CHEVELLE

    • CC: 6489
    • Liter: 6.5
    • SubModel: SS
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1970-1972 CHEVROLET CHEVELLE

    • CC: 4098
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1971-1972 GMC SPRINT

    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1972 CHEVROLET CHEVELLE

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: NOMAD
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1970-1971 CHEVROLET CHEVELLE

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972 CHEVROLET CHEVELLE

    • CC: 5031
    • Liter: 5.0
    • SubModel: GREENBRIER
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1970 PONTIAC FIREBIRD

    • CC: 4097
    • Liter: 4.1
    • SubModel: ESPRIT
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1972 CHEVROLET EL CAMINO

    • EngineType: ALL
    • SubModel: CUSTOM

    1972 CHEVROLET CHEVELLE

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: NOMAD
    • Engine Vin: K
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972 GMC SPRINT

    • Liter: 5.7
    • SubModel: CUSTOM
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972 CHEVROLET MONTE CARLO

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1968-1969 PONTIAC LEMANS

    • CC: 6555
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1973 CHEVROLET CHEVELLE

    • CC: 5737
    • Liter: 5.7
    • SubModel: DELUXE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1968-1971 PONTIAC ACADIAN

    • CC: 5031
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1969 OLDSMOBILE DELTA 88

    • EngineType: ALL
    • SubModel: ROYALE

    1971 CHEVROLET CAPRICE

    • CC: 6588
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1966-1967 CHEVROLET EL CAMINO

    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1970 PONTIAC STRATO-CHIEF

    • CC: 6588
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1972 CHEVROLET CHEVELLE

    • CC: 6555
    • Liter: 6.6
    • SubModel: MALIBU
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1971 CHEVROLET IMPALA

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1968-1969 PONTIAC ACADIAN

    • CC: 6489
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1967 CHEVROLET CHEVY II

    • CC: 4098
    • Liter: 4.1
    • SubModel: NOVA
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1970 PONTIAC STRATO-CHIEF

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972 OLDSMOBILE F85

    • CC: 7456
    • Liter: 7.5
    • SubModel: BASE
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1966-1969 CHEVROLET CAPRICE

    • CC: 6998
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 427
    • EngineType: V8 ( 7.0 L / 427 )

    1971-1972 PONTIAC CATALINA

    • CC: 6555
    • Liter: 6.6
    • SubModel: SAFARI
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1967 CHEVROLET CHEVY II

    • CC: 5358
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1972 CHEVROLET MONTE CARLO

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: K
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1966-1967 BUICK SPORTWAGON

    • CC: 5573
    • Liter: 5.6
    • SubModel: BASE
    • CUI: 340
    • EngineType: V8 ( 5.6 L / 340 )

    1968 CHEVROLET CAMARO

    • Liter: 5.4
    • SubModel: RS
    • CUI: 327
    • EngineType: V8 ( 5.4 L / 327 )

    1972 CHEVROLET CHEVELLE

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1965 CHEVROLET BEL AIR

    • CC: 6704
    • Liter: 6.7
    • SubModel: BASE
    • CUI: 409
    • EngineType: V8 ( 6.7 L / 409 )

    1972 GMC SPRINT

    • CC: 6588
    • Liter: 6.6
    • SubModel: CUSTOM
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1969 CHEVROLET CHEVELLE

    • EngineType: ALL
    • SubModel: ALL

    1971-1972 CHEVROLET CHEVELLE

    • CC: 6555
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1971-1972 PONTIAC FIREBIRD

    • CC: 7456
    • Liter: 7.5
    • SubModel: BASE
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1970-1971 CHEVROLET CHEVELLE

    • EngineType: ALL
    • SubModel: MALIBU

    1965 CHEVROLET IMPALA

    • CC: 6704
    • Liter: 6.7
    • SubModel: BASE
    • CUI: 409
    • EngineType: V8 ( 6.7 L / 409 )

    1968-1969 PONTIAC LEMANS

    • CC: 5733
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1970 CHEVROLET CHEVELLE

    • CC: 6588
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1972 CHEVROLET EL CAMINO

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: SS
    • Engine Vin: J
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972 CHEVROLET NOVA

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972 CHEVROLET NOVA

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: J
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972 PONTIAC CATALINA

    • CC: 5737
    • Liter: 5.7
    • SubModel: BROUGHAM
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1965-1969 PONTIAC BEAUMONT

    • CC: 6489
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1965-1967 CHEVROLET IMPALA

    • EngineType: ALL
    • SubModel: SS

    1968-1969 PONTIAC PARISIENNE

    • CC: 6489
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1970-1972 PONTIAC BONNEVILLE

    • CC: 7456
    • Liter: 7.5
    • SubModel: BASE
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1967 CHEVROLET CHEVY II

    • CC: 5358
    • Liter: 5.3
    • SubModel: NOVA
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1970 PONTIAC TEMPEST

    • CC: 4098
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1967-1968 CHEVROLET CHEVELLE

    • EngineType: ALL
    • SubModel: 300

    1965-1966 OLDSMOBILE JETSTAR 88

    • CC: 5409
    • Liter: 5.4
    • SubModel: HOLIDAY
    • CUI: 330
    • EngineType: V8 ( 5.4 L / 330 )

    1970-1972 CHEVROLET NOVA

    • CC: 5031
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1970-1971 CHEVROLET MONTE CARLO

    • CC: 6556
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1972 CHEVROLET MONTE CARLO

    • CC: 7441
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1972 CHEVROLET EL CAMINO

    • CC: 4098
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1968-1971 OLDSMOBILE F85

    • CC: 5737
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972 GMC SPRINT

    • CC: 6555
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1972 PONTIAC LEMANS

    • CC: 6555
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1970-1971 CHEVROLET NOVA

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1967-1968 CHEVROLET CHEVELLE

    • EngineType: ALL
    • SubModel: CONCOURS

    1970 CHEVROLET BEL AIR

    • CC: 6588
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1965-1966 PONTIAC GTO

    • CC: 6376
    • Liter: 6.4
    • SubModel: BASE
    • CUI: 389
    • EngineType: V8 ( 6.4 L / 389 )

    1967-1972 PONTIAC PARISIENNE

    • CC: 6555
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1970-1972 CHEVROLET CHEVELLE

    • EngineType: ALL
    • SubModel: CONCOURS ESTATE

    1972 PONTIAC CATALINA

    • CC: 5737
    • Liter: 5.7
    • SubModel: SAFARI
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1970-1971 BUICK GS

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972 CHEVROLET CHEVELLE

    • CC: 6555
    • Liter: 6.6
    • SubModel: CONCOURS
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1970 PONTIAC TEMPEST

    • CC: 5733
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972 CHEVROLET CAMARO

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: J
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1970 PONTIAC PARISIENNE

    • CC: 7439
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1970 BUICK GS 455

    • EngineType: ALL
    • SubModel: GSX

    1970 PONTIAC FIREBIRD

    • CC: 5733
    • Liter: 5.7
    • SubModel: FORMULA
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1969 PONTIAC LAURENTIAN

    • CC: 5358
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1971-1972 GMC SPRINT

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1966-1969 CHEVROLET BEL AIR

    • CC: 6998
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 427
    • EngineType: V8 ( 7.0 L / 427 )

    1965-1968 PONTIAC LAURENTIAN

    • CC: 5358
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1972 CHEVROLET CAMARO

    • CC: 5031
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1969 CHEVROLET CAMARO

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972 CHEVROLET CHEVELLE

    • CC: 7441
    • Liter: 7.4
    • SubModel: MALIBU
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1972 CHEVROLET CAPRICE

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: J
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1964 CHEVROLET CHEVELLE

    • CC: 5358
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1968 OLDSMOBILE F85

    • CC: 4098
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1972 OLDSMOBILE CUTLASS

    • EngineType: ALL
    • SubModel: CRUISER

    1965 CHEVROLET CHEVELLE

    • CC: 5358
    • Liter: 5.3
    • SubModel: SS
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1972 OLDSMOBILE CUTLASS

    • CC: 5737
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1966-1967 CHEVROLET CHEVELLE

    • EngineType: ALL
    • SubModel: SS

    1971-1972 PONTIAC FIREBIRD

    • EngineType: ALL
    • SubModel: FORMULA

    Items You Need

    Some parts are not legal for use in California or other states with similar laws / regulations

    Motor Vehicles

    WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.

    Tools:

    WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.

    Electrical Cords

    WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.