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B&M Auto Trans Shift Enhancer, TH-400/375/M40 - 20260

SKU: 20260

$77.15

B&M Auto Trans Shift Enhancer, TH-400/375/M40 - 20260

Recalibrate your automatic transmission for optimum performance and extended life.

B&M Auto Trans Shift Enhancer, TH-400/375/M40 - 20260

Select the mode that best suits your application.

B&M Auto Trans Shift Enhancer, TH-400/375/M40 - 20260

Eliminates shift overlap and excess wear on clutches and bands due to slippage.

B&M Auto Trans Shift Enhancer, TH-400/375/M40 - 20260

Perfect for towing or street / strip use.

B&M Auto Trans Shift Enhancer, TH-400/375/M40 - 20260

Provides crisp shifts on any stock automatic transmissions.

28 In Stock - Ships in 1-3 days

Shipping & Returns

Shipping

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For more information, view our Shipping Policy.

Returns

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For complete details, view our Returns & Refunds Policy.

Warranty

Available warranty coverage is provided by the manufacturer and varies by brand and product. Modridge assists customers with eligible warranty claims and helps coordinate the review process with the manufacturer.

Contact us before returning, repairing, modifying, or discarding a product that may be defective. Order information, photographs, installation details, and diagnostic information may be required.

For coverage details and claim instructions, review our Warranty Policy.

Prop 65 Warning

WARNING: Cancer and reproductive harm - www.P65Warnings.ca.gov

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B&M Auto Trans Shift Enhancer, TH-400/375/M40 - 20260

$77.15

$77.15

Product Description

The B&M Shift Improver Kit the easiest way to get the stout performance you've always wanted out of your automatic transmission and you get two modes of performance to select from: Heavy Duty, or Street/Strip. It's our least expensive and simplest to install kit. All you need are some hand tools! In the space of an afternoon, you can turn your transmission into a B&M-tuned unit! Ask the thousands of satisfied customers that have installed one in their transmissions!

Stage 1 Heavy Duty: Firm positive shifts without loss of driver comfort for improved performance in all street vehicles. Recommended for regular passenger vehicles. Stage 2 Street/Strip: Provides positive shifts for high performance street use or for competitive events. This level is for the enthusiast who wants the hardest, quickest possible shift.


Additional Details

  • Limited 1 year warranty.
  • Heavy duty or street/strip mode.

Specifications

Compatibility
TH400/375/M40 Transmission
Performance Type
Heavy Duty Or Street/Strip Mode
Includes Gaskets
Yes
Includes Filter
No
Additional Specification
With Gaskets

Fitment / Application

1965-1967, 1977-1981 Buick Electra Trans Code THM400
1965-1967 Buick Gran Sport Trans Code THM400
1965-1981 Buick LeSabre Trans Code THM400
1965-1969, 1977-1978 Buick Riviera Trans Code THM400
1965-1967, 1969 Buick Skylark Trans Code THM400
1965-1967 Buick Special Trans Code THM400
1965-1969 Buick Wildcat Trans Code THM400
1965-1967 Cadillac Calais Trans Code THM400
1965-1967, 1980-1981 Cadillac DeVille Trans Code THM400
1965-1966 Cadillac Eldorado Trans Code THM400
1965-1967, 1980-1984 Cadillac Fleetwood Trans Code THM400
1965-1975 Chevrolet Bel Air Trans Code THM400
1965-1972 Chevrolet Biscayne Trans Code THM400
1965-1968, 1970-1972 Chevrolet Chevelle Trans Code THM400
1965-1975 Chevrolet El Camino Trans Code THM400
1965-1969, 1972-1975 Chevrolet Impala Trans Code THM400
1965-1967 Chevrolet P20 Series Trans Code THM400
1965-1967 Chevrolet P30 Series Trans Code THM400
1965 Jeep J-200 Trans Code THM400
1965 Jeep J-300 Trans Code THM400
1965 Jeep Truck Trans Code THM400
1965-1979 Jeep Wagoneer Trans Code THM400
1965-1971 Oldsmobile 442 Trans Code THM400
1965-1967, 1972-1975, 1977-1980 Oldsmobile 98 Trans Code THM400
1965-1966, 1968-1972 Oldsmobile F85 Trans Code THM400
1965-1966 Oldsmobile Starfire Trans Code THM400
1965-1977 Pontiac Bonneville Trans Code THM400
1965-1977 Pontiac Catalina Trans Code THM400
1965-1974, 1976-1977 Pontiac Grand Prix Trans Code THM400
1965, 1968-1977 Pontiac LeMans Trans Code THM400
1965-1966 Pontiac Star Chief Trans Code THM400
1965, 1970 Pontiac Tempest Trans Code THM400
1966-1969 Buick Sportwagon Trans Code THM400
1966-1969, 1972, 1975 Chevrolet Caprice Trans Code THM400
1966-1967 Chevrolet Chevy II Trans Code THM400
1966-1967 Chevrolet P10 Series Trans Code THM400
1966-1974 GMC K15/K1500 Pickup Trans Code THM400
1966-1973 Jeep J-2500 Trans Code THM400
1966-1973 Jeep J-2600 Trans Code THM400
1966-1969 Jeep J-2700 Trans Code THM400
1966-1968 Jeep J-2800 Trans Code THM400
1966-1970 Jeep J-3500 Trans Code THM400
1966-1970 Jeep J-3600 Trans Code THM400
1966-1970 Jeep J-3700 Trans Code THM400
1966-1968 Jeep J-3800 Trans Code THM400
1966-1970 Jeep Jeepster Trans Code THM400
1966-1973 Pontiac GTO Trans Code THM400
1967-1974, 1977-1984 Chevrolet C10 Suburban Trans Code THM400
1967-1986 Chevrolet C20 Suburban Trans Code THM400
1967-1977 Chevrolet Corvette Trans Code THM400
1967-1974, 1977-1984 Chevrolet K10 Suburban Trans Code THM400
1967-1986 Chevrolet K20 Suburban Trans Code THM400
1967-1974 GMC C25/C2500 Pickup Trans Code THM400
1967-1974 GMC K15/K1500 Suburban Trans Code THM400
1967-1974 GMC K25/K2500 Pickup Trans Code THM400
1967-1968 Oldsmobile Delmont 88 Trans Code THM400
1967-1970 Pontiac Executive Trans Code THM400
1968-1974 GMC C15/C1500 Pickup Trans Code THM400
1968-1974 GMC C15/C1500 Suburban Trans Code THM400
1968-1974 GMC C25/C2500 Suburban Trans Code THM400
1968-1974 GMC C35/C3500 Pickup Trans Code THM400
1968-1974 GMC K25/K2500 Suburban Trans Code THM400
1968-1975 Oldsmobile Cutlass Trans Code THM400
1968-1980 Oldsmobile Delta 88 Trans Code THM400
1968-1975 Oldsmobile Vista Cruiser Trans Code THM400
1969-1974 Checker Taxicab Trans Code THM400
1969-1974, 1987 Chevrolet Blazer Trans Code THM400
1969, 1972 Chevrolet Brookwood Trans Code THM400
1969, 1972 Chevrolet Kingswood Trans Code THM400
1969-1975 Chevrolet Nova Trans Code THM400
1969-1972 Chevrolet Townsman Trans Code THM400
1969-1977 Pontiac Firebird Trans Code THM400
1970-1974, 1977-1981 Buick Estate Wagon Trans Code THM400
1970-1972 Buick GS Trans Code THM400
1970-1974 Chevrolet G20 Van Trans Code THM400
1970-1975 Chevrolet Monte Carlo Trans Code THM400
1970-1971, 1974 GMC G35/G3500 Van Trans Code THM400
1970-1974, 1977-1987 GMC Jimmy Trans Code THM400
1970-1974 GMC K35/K3500 Pickup Trans Code THM400
1970-1973 Jeep J-4700 Trans Code THM400
1970-1973 Jeep J-4800 Trans Code THM400
1971-1975 GMC Sprint Trans Code THM400
1971-1973 Jeep J-4500 Trans Code THM400
1971-1973 Jeep J-4600 Trans Code THM400
1971-1975, 1977-1980 Oldsmobile Custom Cruiser Trans Code THM400
1971-1975 Pontiac Grandville Trans Code THM400
1972-1973 Buick Centurion Trans Code THM400
1972-1979 Jeep CJ5 Trans Code THM400
1972-1975 Jeep CJ6 Trans Code THM400
1972-1974 Jeep DJ5 Trans Code THM400
1973-1977 Buick Century Trans Code THM400
1973-1977 Buick Regal Trans Code THM400
1973-1975 Chevrolet Camaro Trans Code THM400
1973-1975 Pontiac Grand Am Trans Code THM400
1974-1979 Jeep Cherokee Trans Code THM400
1974-1979 Jeep J10 Trans Code THM400
1974-1979 Jeep J20 Trans Code THM400
1975-1986 Chevrolet C10 Trans Code THM400
1975-1986 Chevrolet C20 Trans Code THM400
1975-1986 Chevrolet C30 Trans Code THM400
1975-1987 Chevrolet G20 Trans Code THM400
1975-1987 Chevrolet G30 Trans Code THM400
1975-1986 Chevrolet K20 Trans Code THM400
1975-1987 Chevrolet P20 Trans Code THM400
1975-1987 Chevrolet P30 Trans Code THM400
1975-1978 GMC C15 Trans Code THM400
1975-1978 GMC C15 Suburban Trans Code THM400
1975-1978 GMC C25 Trans Code THM400
1975-1978 GMC C25 Suburban Trans Code THM400
1975-1978 GMC C35 Trans Code THM400
1975-1978 GMC G25 Trans Code THM400
1975-1978 GMC G35 Trans Code THM400
1975-1978 GMC K25 Trans Code THM400
1975-1978 GMC K25 Suburban Trans Code THM400
1975-1978 GMC P25 Trans Code THM400
1975-1978 GMC P35 Trans Code THM400
1975 Oldsmobile Cutlass Salon Trans Code THM400
1975 Oldsmobile Cutlass Supreme Trans Code THM400
1975-1977 Pontiac Grand LeMans Trans Code THM400
1975-1976 Pontiac Grand Safari Trans Code THM400
1976-1977 Cadillac Seville
1976-1980 Chevrolet P10 Trans Code THM400
1976-1978 GMC P15 Trans Code THM400
1976-1979 Jeep CJ7 Trans Code THM400
1977-1979 Cadillac DeVille
1977-1979 Cadillac Fleetwood
1977-1987 Chevrolet G10 Trans Code THM400
1977-1986 Chevrolet K10 Trans Code THM400
1977-1986 Chevrolet K30 Trans Code THM400
1977-1986 Chevrolet K5 Blazer Trans Code THM400
1977-1978 GMC G15 Trans Code THM400
1977-1978 GMC K15 Trans Code THM400
1977-1978 GMC K15 Suburban Trans Code THM400
1977-1978 GMC K35 Trans Code THM400
1978 Cadillac Seville Trans Code THM400
1978 Oldsmobile Toronado Trans Code THM400
1979-1986 GMC C1500 Trans Code THM400
1979-1984 GMC C1500 Suburban Trans Code THM400
1979-1986 GMC C2500 Trans Code THM400
1979-1986 GMC C2500 Suburban Trans Code THM400
1979-1986 GMC C3500 Trans Code THM400
1979-1987 GMC G1500 Trans Code THM400
1979-1987 GMC G2500 Trans Code THM400
1979-1987 GMC G3500 Trans Code THM400
1979-1986 GMC K1500 Trans Code THM400
1979-1984 GMC K1500 Suburban Trans Code THM400
1979-1986 GMC K2500 Trans Code THM400
1979-1986 GMC K2500 Suburban Trans Code THM400
1979-1986 GMC K3500 Trans Code THM400
1979-1980 GMC P1500 Trans Code THM400
1979-1987 GMC P2500 Trans Code THM400
1979-1987 GMC P3500 Trans Code THM400
1987 Cadillac Brougham Trans Code THM400
1987 Chevrolet R10 Trans Code THM400
1987 Chevrolet R20 Trans Code THM400
1987 Chevrolet R20 Suburban Trans Code THM400
1987 Chevrolet R30 Trans Code THM400
1987 Chevrolet V10 Trans Code THM400
1987 Chevrolet V20 Trans Code THM400
1987 Chevrolet V20 Suburban Trans Code THM400
1987 Chevrolet V30 Trans Code THM400
1987 GMC R1500 Trans Code THM400
1987 GMC R2500 Trans Code THM400
1987 GMC R2500 Suburban Trans Code THM400
1987 GMC R3500 Trans Code THM400
1987 GMC V1500 Trans Code THM400
1987 GMC V2500 Trans Code THM400
1987 GMC V2500 Suburban Trans Code THM400
1987 GMC V3500 Trans Code THM400

Installation & Documents

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