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Hughes Performance - Torque Converter Direct Drive - TH350/TH400 30Spl 10.75 Bolt Pattern 1/4 Midplate

512-GMDD 1/4

made in usa
Free Shipping Ships directly from the manufacturer on 08/29/19
Save $20 off $250, $40 off $500, $100 off $1,000. Promo Code: RACE2SAVE exclusions apply

$237.99
Hughes Performance - Torque Converter Direct Drive - TH350/TH400 30Spl 10.75 Bolt Pattern 1/4 Midplate $237.99
Out of stock
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Hughes Performance - Torque Converter Direct Drive - TH350/TH400 30Spl 10.75 Bolt Pattern 1/4 Midplate

Specifications:

Transmission Mfr.
General Motors
Transmission Mfr. Code
Powerglide
Converter Lockup
N
Converter Hub Diameter (in)
1.873
Converter Input Spline
30
Converter Mount Type
3 PAD
Converter Pilot Diameter (in)
1.702
Converter Total Height (in)
6.125
Flexplate Bolt Circle (in)
10.75
Transmission Mfr. Code
THM350
Transmission Mfr. Code
THM400
Converter Total Height (in)
6.375
Manufacturer's Part Number:
GMDD 1/4

Commonly referred to as a torque converter eliminator, this assembly replaces the converter for those type applications where a direct drive is required. This unit retains the strength of a triangular bolt pattern and eliminates the added weight of a torque converter. As with all competition units, please make note of motor plate thickness so the custom unit Hughes builds for your race car its properly. I.M.C.A. Converter This unit is available in 10? models and is designed with oval track racing in mind. We gave it a full bearing design for durability and less drag. We make this unit as “tight” (low stall) as possible for maximum torque multiplication and top end efficiency, as well as allowing quicker exits while cornering. For ultimate strength and durability we silicon spot braze all turbine and pump vanes. Deal with a company that listens.

Does Hughes Performance GMDD 1/4 fit your vehicle?

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1973  CHEVROLET EL CAMINO

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

1968  GMC C25/C2500 SUBURBAN

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

1989-1990  GMC C3500 PICKUP

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

1969  CHEVROLET BROOKWOOD

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

1990  CHEVROLET G20 VAN

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

1990  CHEVROLET C1500 PICKUP

  • Liter: 7.4
  • SubModel: SCOTTSDALE
  • CUI: 454
  • EngineType: V8 ( 7.4 L / 454 )

1969-1972  CHEVROLET KINGSWOOD

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

1979  CHEVROLET MONZA

  • Liter: 5.0
  • SubModel: S
  • CUI: 305
  • EngineType: V8 ( 5.0 L / 305 )

1974  CHEVROLET MALIBU

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

1967  CHEVROLET CHEVELLE

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

1979-1980  CHEVROLET K10 PICKUP

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

1968  GMC C15/C1500 SUBURBAN

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

1980  CHEVROLET CAMARO

  • Liter: 4.4
  • SubModel: BASE
  • CUI: 267
  • EngineType: V8 ( 4.4 L / 267 )

1973-1974  CHEVROLET G20 VAN

  • CC: 7441
  • Liter: 7.4
  • Aspiration: N
  • SubModel: BASE
  • Engine Vin: Z
  • CUI: 454
  • EngineType: V8 ( 7.4 L / 454 )

1969  CHEVROLET K20 SUBURBAN

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

1990  CHEVROLET K1500 PICKUP

  • CC: 5031
  • Liter: 5.0
  • SubModel: SCOTTSDALE
  • CUI: 305
  • EngineType: V8 ( 5.0 L / 305 )

1988-1990  CHEVROLET C3500 PICKUP

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

1990  CHEVROLET C1500 PICKUP

  • CC: 5031
  • Liter: 5.0
  • SubModel: WT
  • CUI: 305
  • EngineType: V8 ( 5.0 L / 305 )

1979-1980  GMC K2500 SUBURBAN

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

1969-1972  CHEVROLET TOWNSMAN

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

1990  CHEVROLET C1500 PICKUP

  • CC: 5031
  • Liter: 5.0
  • SubModel: SCOTTSDALE
  • CUI: 305
  • EngineType: V8 ( 5.0 L / 305 )

1972  CHEVROLET CHEVELLE

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

1980  CHEVROLET CAMARO

  • Liter: 4.4
  • SubModel: RALLY SPORT
  • CUI: 267
  • EngineType: V8 ( 4.4 L / 267 )

1979  GMC G15/G1500 VAN

  • Liter: 6.6
  • SubModel: RALLY
  • CUI: 400
  • EngineType: V8 ( 6.6 L / 400 )

1974  CHEVROLET MALIBU

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

1969  GMC C25/C2500 SUBURBAN

  • CC: 5031
  • Liter: 5.0
  • Aspiration: N
  • SubModel: BASE
  • Engine Vin: U
  • CUI: 307
  • EngineType: V8 ( 5.0 L / 307 )

1967  CHEVROLET CHEVELLE

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

1979-1980  CHEVROLET MALIBU

  • Liter: 4.4
  • SubModel: BASE
  • CUI: 267
  • EngineType: V8 ( 4.4 L / 267 )

1976  CHEVROLET P30 VAN

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

1974  CHEVROLET IMPALA

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

1968  GMC C35/C3500 PICKUP

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

1981  CHEVROLET CAMARO

  • CC: 5031
  • Liter: 5.0
  • SubModel: SPORT
  • CUI: 305
  • EngineType: V8 ( 5.0 L / 305 )

1980  CHEVROLET CAPRICE

  • Liter: 4.4
  • SubModel: CLASSIC SPORT
  • CUI: 267
  • EngineType: V8 ( 4.4 L / 267 )

1988-1990  GMC G35/G3500 VAN

  • Liter: 7.4
  • SubModel: MAGNAVAN
  • CUI: 454
  • EngineType: V8 ( 7.4 L / 454 )

1974  CHEVROLET BLAZER

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

1969  CHEVROLET KINGSWOOD

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

1977  CHEVROLET IMPALA

  • CC: 5031
  • Liter: 5.0
  • SubModel: CUSTOM
  • CUI: 305
  • EngineType: V8 ( 5.0 L / 305 )

1970-1971  CHEVROLET CHEVELLE

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

1988-1990  CHEVROLET C3500 PICKUP

  • Liter: 7.4
  • SubModel: CHEYENNE
  • CUI: 454
  • EngineType: V8 ( 7.4 L / 454 )

1990  CHEVROLET C1500 PICKUP

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

1979-1982  CHEVROLET C20 PICKUP

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

1964-1965  CHEVROLET K20 SUBURBAN

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

1975-1976  CHEVROLET IMPALA

  • EngineType: ALL
  • SubModel: SPORT

1969-1973  CHEVROLET CAMARO

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

1990  CHEVROLET C2500 PICKUP

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

1972  CHEVROLET IMPALA

  • CC: 7441
  • Liter: 7.4
  • Aspiration: N
  • SubModel: BASE
  • Engine Vin: V
  • CUI: 454
  • EngineType: V8 ( 7.4 L / 454 )

1980  CHEVROLET CAPRICE

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

1979-1980  CHEVROLET EL CAMINO

  • Liter: 4.4
  • SubModel: BASE
  • CUI: 267
  • EngineType: V8 ( 4.4 L / 267 )

1974  CHEVROLET MALIBU

  • CC: 7441
  • Liter: 7.4
  • Aspiration: N
  • SubModel: CLASSIC
  • Engine Vin: Y
  • CUI: 454
  • EngineType: V8 ( 7.4 L / 454 )

1969  GMC K1500 PICKUP

  • CC: 5031
  • Liter: 5.0
  • Aspiration: N
  • SubModel: BASE
  • Engine Vin: E
  • CUI: 307
  • EngineType: V8 ( 5.0 L / 307 )

1974  CHEVROLET C10 SUBURBAN

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

1979-1982  CHEVROLET C20 SUBURBAN

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

1970-1971  CHEVROLET EL CAMINO

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

1970-1971  CHEVROLET MONTE CARLO

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

1967  GMC K1500 PICKUP

  • CC: 4638
  • Liter: 4.6
  • SubModel: BASE
  • CUI: 283
  • EngineType: V8 ( 4.6 L / 283 )

1979-1980  CHEVROLET MALIBU

  • Liter: 4.4
  • SubModel: CLASSIC LANDAU
  • CUI: 267
  • EngineType: V8 ( 4.4 L / 267 )

1968  CHEVROLET CHEVELLE

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

1973  GMC JIMMY

  • Liter: 7.4
  • Aspiration: N
  • SubModel: BASE
  • Engine Vin: Z
  • CUI: 454
  • EngineType: V8 ( 7.4 L / 454 )

1978  CHEVROLET NOVA

  • CC: 5031
  • Liter: 5.0
  • SubModel: CUSTOM
  • CUI: 305
  • EngineType: V8 ( 5.0 L / 305 )

1972  GMC C15/C1500 SUBURBAN

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

1990  CHEVROLET C1500 PICKUP

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

1970-1972  CHEVROLET K20 SUBURBAN

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

1976-1978  CHEVROLET C20 PICKUP

  • Liter: 6.6
  • SubModel: CHEYENNE
  • CUI: 400
  • EngineType: V8 ( 6.6 L / 400 )

1974  CHEVROLET MALIBU

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

1968  GMC K25/K2500 PICKUP

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

1981-1986  GMC C2500 SUBURBAN

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

1980  GMC C1500 PICKUP

  • Liter: 5.7
  • Aspiration: N
  • SubModel: BIG TEN
  • Engine Vin: M
  • CUI: 350
  • EngineType: V8 ( 5.7 L / 350 )

1988-1990  GMC K3500 PICKUP

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

1974  CHEVROLET CORVETTE

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

1979-1982  CHEVROLET K30 PICKUP

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

1969  CHEVROLET KINGSWOOD

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

1977  CHEVROLET NOVA

  • CC: 5031
  • Liter: 5.0
  • SubModel: CONCOURS
  • CUI: 305
  • EngineType: V8 ( 5.0 L / 305 )

1970-1971  CHEVROLET CHEVELLE

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

1972  CHEVROLET CAPRICE

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

1975  CHEVROLET MALIBU

  • Liter: 7.4
  • SubModel: CLASSIC
  • CUI: 454
  • EngineType: V8 ( 7.4 L / 454 )

1988-1990  CHEVROLET K1500 PICKUP

  • CC: 5031
  • Liter: 5.0
  • SubModel: CHEYENNE
  • CUI: 305
  • EngineType: V8 ( 5.0 L / 305 )

1972  GMC C25/C2500 SUBURBAN

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

1990  CHEVROLET G10 VAN

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

1968-1969  CHEVROLET EL CAMINO

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

1979-1982  CHEVROLET K20 PICKUP

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

1975-1989  CHEVROLET P20 VAN

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

1977-1980  CHEVROLET IMPALA

  • CC: 5031
  • Liter: 5.0
  • SubModel: BASE
  • CUI: 305
  • EngineType: V8 ( 5.0 L / 305 )

1964-1967  CHEVROLET C10 SUBURBAN

  • CC: 4638
  • Liter: 4.6
  • SubModel: BASE
  • CUI: 283
  • EngineType: V8 ( 4.6 L / 283 )

1982-1986  GMC C1500 PICKUP

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

1975-1976  CHEVROLET MALIBU

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

1969-1973  CHEVROLET NOVA

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

1990  CHEVROLET G10 VAN

  • Liter: 5.0
  • SubModel: CHEVY VAN
  • CUI: 305
  • EngineType: V8 ( 5.0 L / 305 )

1972  CHEVROLET KINGSWOOD

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

1975-1976  CHEVROLET MONTE CARLO

  • Liter: 6.6
  • SubModel: S
  • CUI: 400
  • EngineType: V8 ( 6.6 L / 400 )

1980  CHEVROLET G10 VAN

  • Liter: 5.0
  • SubModel: BASE
  • CUI: 305
  • EngineType: V8 ( 5.0 L / 305 )

1986-1987  CHEVROLET G10 VAN

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

1985  CHEVROLET C10 SUBURBAN

  • CC: 5031
  • Liter: 5.0
  • SubModel: BASE
  • CUI: 305
  • EngineType: V8 ( 5.0 L / 305 )

1979-1980  CHEVROLET G10 VAN

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

1974  CHEVROLET NOVA

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

1969-1970  CHEVROLET K10 SUBURBAN

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

1985  CHEVROLET K20 PICKUP

  • CC: 5031
  • Liter: 5.0
  • SubModel: BASE
  • CUI: 305
  • EngineType: V8 ( 5.0 L / 305 )

1965-1969  CHEVROLET BEL AIR

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

1975  CHEVROLET NOVA

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

1974  CHEVROLET IMPALA

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

1979-1980  CHEVROLET MALIBU

  • CC: 5031
  • Liter: 5.0
  • SubModel: CLASSIC ESTATE
  • CUI: 305
  • EngineType: V8 ( 5.0 L / 305 )
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