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B&M Adjustable Modulator, GM TH350/TH400 Automatic Transmissions 20234

B&M Adjustable Modulator, GM TH350/TH400 Automatic Transmissions 20234
B&M Adjustable Modulator, GM TH350/TH400 Automatic Transmissions 20234B&M Adjustable Modulator, GM TH350/TH400 Automatic Transmissions 20234B&M Adjustable Modulator, GM TH350/TH400 Automatic Transmissions 20234B&M Adjustable Modulator, GM TH350/TH400 Automatic Transmissions 20234B&M Adjustable Modulator, GM TH350/TH400 Automatic Transmissions 20234B&M Adjustable Modulator, GM TH350/TH400 Automatic Transmissions 20234B&M Adjustable Modulator, GM TH350/TH400 Automatic Transmissions 20234
$65.99 ea
NEWBackordered until 05/06/2024
Model: 3998134
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
STANDARD
DELIVERY
The B&M® vacuum modulator is fully adjustable and allows you to fine-tune your shift points and shift feel. This is done by turning the adjustment screw inside of the vacuum line connection for more or less diaphragm preload, thus raising or lowering part throttle shift points and line pressures. For GM TH350 and TH400 automatic transmissions.
Features:
  • Allows you to Tailor Shift Points
  • New O-ring Helps Stop Leaks
  • Fully Adjustable
  • B&M Quality
For GM TH350 and TH400 automatic transmissions. A minimum of 12" Hg engine vacuum is required for proper operation.
Installation Notes:
For GM TH350 and TH400 automatic transmissions. A minimum of 12" Hg engine vacuum is required for proper operation.

About B&M Racing

B&M® specializes in performance automatic transmissions, torque converters, SFI approved flexplates, legendary automatic shifters, precision manual shifters, and many other transmission products including cast deep aluminum transmission pans, transmission coolers, and automatic transmission fluid. B&M Performance & Off-Road has been at the vanguard of the growing automotive aftermarket since the early 1950s. Racers themselves, B&M’s founders identified the needs of local performance enthusiasts and developed products to fill those needs. B&M specializes in performance automatic transmissions, torque converters, SFI approved flexplates, legendary automatic shifters, precision manual shifters, automatic shift handles, extended transfer case handles, cast deep aluminum transmission pans, differential covers, transmission coolers, power steering coolers, automatic transmission fluid, and transmission accessories for performance street, truck, Jeep, and off-road applications.

Videos:

Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Years Engine
Buick Skylark 1965 6.6L / 401 / V8
Buick Skylark 1967 5.6L / 340 / V8
Buick Skylark 1969 5.7L / 350 / V8
Buick Skylark 1970 5.7L / 350 / V8
Buick Skylark 1971 5.7L / 350 / V8
Buick Skylark 1972 5.7L / 350 / V8
Buick Skylark 1975 5.7L / 350 / V8
Buick Skylark 1976 5.7L / 350 / V8
Buick Skylark 1977 5.7L / 350 / V8
Buick Skylark 1978 5.7L / 350 / V8
Buick Skylark 1979 5.7L / 350 / V8
Buick Special 1965 4.9L / 300 / V8
Buick Special 1967 4.9L / 300 / V8
Buick Special 1969 5.7L / 350 / V8
Buick Sportwagon 1967 5.6L / 340 / V8
Buick Sportwagon 1968 5.7L / 350 / V8
Buick Sportwagon 1969 5.7L / 350 / V8
Buick Sportwagon 1970 5.7L / 350 / V8
Buick Sportwagon 1971 5.7L / 350 / V8
Buick Sportwagon 1972 5.7L / 350 / V8
Chevrolet Chevelle 1965 5.4L / 327 / V8
Chevrolet Chevelle 1966 6.5L / 396 / V8
Chevrolet Chevelle 1967 5.4L / 327 / V8
Chevrolet Chevelle 1968 5.7L / 350 / V8
Chevrolet Chevelle 1970 5.7L / 350 / V8
Chevrolet Chevelle 1971 5.7L / 350 / V8
Chevrolet Chevelle 1972 5.7L / 350 / V8
Chevrolet El Camino 1965 5.3L / 327 / V8
Chevrolet El Camino 1966 4.6L / 283 / V8
Chevrolet El Camino 1967 6.5L / 396 / V8
Chevrolet El Camino 1968 5.7L / 350 / V8
Chevrolet El Camino 1969 5.7L / 350 / V8
Chevrolet El Camino 1970 5.7L / 350 / V8
Chevrolet El Camino 1971 5.7L / 350 / V8
Chevrolet El Camino 1972 5.7L / 350 / V8
Chevrolet El Camino 1973 5.7L / 350 / V8
Chevrolet El Camino 1974 5.7L / 350 / V8
Chevrolet El Camino 1975 5.7L / 350 / V8
Chevrolet El Camino 1976 5.7L / 350 / V8
Chevrolet El Camino 1977 5.7L / 350 / V8
Chevrolet El Camino 1978 5.7L / 350 / V8
Chevrolet El Camino 1979 5.7L / 350 / V8
Chevrolet El Camino 1980 5.0L / 305 / V8
Chevrolet Laguna 1975 5.7L / 350 / V8
Chevrolet Laguna 1976 5.7L / 350 / V8
Chevrolet Malibu 1973 5.0L / 307 / V8
Chevrolet Malibu 1974 7.4L / 454 / V8
Chevrolet Malibu 1975 5.7L / 350 / V8
Chevrolet Malibu 1976 5.0L / 305 / V8
Chevrolet Malibu 1977 5.0L / 305 / V8
Chevrolet Malibu 1978 5.7L / 350 / V8
Chevrolet Malibu 1979 5.7L / 350 / V8
Chevrolet Malibu 1980 5.7L / 350 / V8
Oldsmobile Cutlass 1968
Oldsmobile Cutlass 1969
Oldsmobile Cutlass 1970
Oldsmobile Cutlass 1971
Oldsmobile Cutlass 1972
Oldsmobile Cutlass 1973
Oldsmobile Cutlass 1974
Oldsmobile Cutlass 1975
Oldsmobile Cutlass 1976
Oldsmobile Cutlass 1977
Oldsmobile Cutlass 1978
Oldsmobile Cutlass 1979
Oldsmobile Cutlass 1980
Oldsmobile Cutlass 1981
Oldsmobile F85 1965
Oldsmobile F85 1966
Oldsmobile F85 1968
Oldsmobile F85 1969
Oldsmobile F85 1970
Oldsmobile F85 1971
Oldsmobile F85 1972
Oldsmobile Vista Cruiser 1968
Oldsmobile Vista Cruiser 1969
Oldsmobile Vista Cruiser 1970
Oldsmobile Vista Cruiser 1971
Oldsmobile Vista Cruiser 1972
Oldsmobile Vista Cruiser 1973
Oldsmobile Vista Cruiser 1974
Oldsmobile Vista Cruiser 1975
Pontiac GTO 1966 6.4L / 389 / V8
Pontiac GTO 1967
Pontiac GTO 1968
Pontiac GTO 1969
Pontiac GTO 1970
Pontiac GTO 1971
Pontiac GTO 1972
Pontiac GTO 1973
Pontiac Grand Prix 1965
Pontiac Grand Prix 1966
Pontiac Grand Prix 1967
Pontiac Grand Prix 1968
Pontiac Grand Prix 1969
Pontiac Grand Prix 1970
Pontiac Grand Prix 1971
Pontiac Grand Prix 1972
Pontiac Grand Prix 1973
Pontiac Grand Prix 1974
Pontiac Grand Prix 1976
Pontiac Grand Prix 1977
Pontiac Grand Prix 1978
Pontiac Grand Prix 1979
Pontiac Grand Prix 1980
Pontiac LeMans 1965
Pontiac LeMans 1968
Pontiac LeMans 1969
Pontiac LeMans 1970
Pontiac LeMans 1971
Pontiac LeMans 1972
Pontiac LeMans 1973
Pontiac LeMans 1974
Pontiac LeMans 1975
Pontiac LeMans 1976
Pontiac LeMans 1977
Pontiac LeMans 1978
Pontiac LeMans 1979
Pontiac LeMans 1980
Pontiac Tempest 1965
Pontiac Tempest 1968
Pontiac Tempest 1969
Pontiac Tempest 1970

Specifications:

California Proposition 65 Chemical Name Cadmium and cadmium compounds
California Proposition 65 Required Yes
Emission Code 5
Finish Gold Iridited
Instructions Included Yes
Material Steel
Part Type Automatic Transmission Vacuum Modulator
Product Type Automatic Transmission Modulator Valve
Proposition 65 www.P65Warnings.ca.gov
Warranty Time 12 Months

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