Suncoast Reverse Boost Valve Kit - Factory Style

 

Large Ratio, Factory Style, No O-Rings

 

Vehicles with GM 200-4R and 4L60 transmissions often have complaints of poor Reverse boost or upshifts in manual low. This complaint is generally caused by a worn Reverse boost valve sleeve or wear at the pump body. To resolve these problems, Sonnax offers larger ratio (.283"), factory-style Reverse boost valve kit K77898A.

 

Due to the differences in the thermal expansion rate of steel and aluminum when the transmission approaches operating temperature, the sleeve has been allowed excessive clearance and scrubs the bore.

 

• Sleeve and valve are made from hardened steel for increased wear resistance
• Sleeve lands have been lengthened to add better sealing and stabilizing capabilities to prevent bore wear
• The reverse boost valve spool lands have been lengthened to aid in maintaining hydraulic integrity
• Drop-in Zip Valve™ parts install quickly and easily

 

Contents:

1993 Chevrolet Astro
1993 Chevrolet Caprice
1993 Chevrolet Impala
1993 Chevrolet S10
1993 Chevrolet S10 Blazer
1993 Chevrolet Suburban
1993 GMC S15 Jimmy
1993 GMC Safari
1993 GMC Sonoma
1993 GMC Suburban
1992 Cadillac Brougham
1992 Cadillac Fleetwood
1992 Chevrolet Astro
1992 Chevrolet Camaro
1992 Chevrolet Caprice
1992 Chevrolet Corvette
1992 Chevrolet Impala
1992 Chevrolet S10
1992 Chevrolet S10 Blazer
1992 Chevrolet Suburban
1992 GMC S15 Jimmy
1992 GMC Safari
1992 GMC Sonoma
1992 GMC Suburban
1992 Oldsmobile Custom Cruiser
1992 Pontiac Firebird
1991 Cadillac Brougham
1991 Cadillac Fleetwood
1991 Chevrolet Astro
1991 Chevrolet Camaro
1991 Chevrolet Caprice
1991 Chevrolet Corvette
1991 Chevrolet Impala
1991 Chevrolet S10
1991 Chevrolet S10 Blazer
1991 Chevrolet Suburban
1991 GMC S15 Jimmy
1991 GMC Safari
1991 GMC Sonoma
1991 GMC Suburban
1991 Oldsmobile Custom Cruiser
1991 Pontiac Firebird
1990 Cadillac Brougham
1990 Cadillac Fleetwood
1990 Chevrolet Astro
1990 Chevrolet Camaro
1990 Chevrolet Caprice
1990 Chevrolet Corvette
1990 Chevrolet Impala
1990 Chevrolet S10
1990 Chevrolet S10 Blazer
1990 Chevrolet Suburban
1990 GMC S15 Jimmy
1990 GMC Safari
1990 GMC Sonoma
1990 GMC Suburban
1990 Oldsmobile Custom Cruiser
1990 Pontiac Firebird
1989 Cadillac Brougham
1989 Cadillac Fleetwood
1989 Chevrolet Astro
1989 Chevrolet Beretta
1989 Chevrolet Camaro
1989 Chevrolet Caprice
1989 Chevrolet Cavalier
1989 Chevrolet Celebrity
1989 Chevrolet Corvette
1989 Chevrolet S10
1989 Chevrolet S10 Blazer
1989 Chevrolet Suburban
1989 GMC S15 Jimmy
1989 GMC Safari
1989 GMC Sonoma
1989 GMC Suburban
1989 Oldsmobile Custom Cruiser
1989 Pontiac Firebird
1988 Cadillac Brougham
1988 Cadillac Fleetwood
1988 Chevrolet Astro
1988 Chevrolet Beretta
1988 Chevrolet Camaro
1988 Chevrolet Caprice
1988 Chevrolet Cavalier
1988 Chevrolet Celebrity
1988 Chevrolet Corvette
1988 Chevrolet Monte Carlo
1988 Chevrolet S10
1988 Chevrolet S10 Blazer
1988 Chevrolet Suburban
1988 GMC S15 Jimmy
1988 GMC Safari
1988 GMC Sonoma
1988 GMC Suburban
1988 Oldsmobile Custom Cruiser
1988 Oldsmobile Cutlass Supreme
1988 Pontiac Firebird
1987 Cadillac Brougham
1987 Cadillac DeVille
1987 Cadillac Fleetwood
1987 Chevrolet Astro
1987 Chevrolet Beretta
1987 Chevrolet Camaro
1987 Chevrolet Caprice
1987 Chevrolet Cavalier
1987 Chevrolet Celebrity
1987 Chevrolet Corvette
1987 Chevrolet El Camino
1987 Chevrolet Monte Carlo
1987 Chevrolet S10
1987 Chevrolet S10 Blazer
1987 Chevrolet Suburban
1987 GMC Caballero
1987 GMC S15 Jimmy
1987 GMC Safari
1987 GMC Sonoma
1987 GMC Suburban
1987 Oldsmobile Custom Cruiser
1987 Oldsmobile Cutlass Supreme
1987 Pontiac Firebird
1987 Pontiac Grand Prix
1986 Cadillac Brougham
1986 Cadillac DeVille
1986 Cadillac Fleetwood
1986 Chevrolet Astro
1986 Chevrolet Camaro
1986 Chevrolet Caprice
1986 Chevrolet Cavalier
1986 Chevrolet Celebrity
1986 Chevrolet Corvette
1986 Chevrolet El Camino
1986 Chevrolet Monte Carlo
1986 Chevrolet S10
1986 Chevrolet S10 Blazer
1986 Chevrolet Suburban
1986 GMC Caballero
1986 GMC S15 Jimmy
1986 GMC Safari
1986 GMC Sonoma
1986 GMC Suburban
1986 Oldsmobile Custom Cruiser
1986 Oldsmobile Cutlass Supreme
1986 Pontiac Bonneville
1986 Pontiac Firebird
1986 Pontiac Grand Prix
1986 Pontiac Parisienne
1985 Cadillac Brougham
1985 Cadillac DeVille
1985 Cadillac Eldorado
1985 Cadillac Fleetwood
1985 Cadillac Seville
1985 Chevrolet Astro
1985 Chevrolet Camaro
1985 Chevrolet Caprice
1985 Chevrolet Cavalier
1985 Chevrolet Celebrity
1985 Chevrolet Corvette
1985 Chevrolet El Camino
1985 Chevrolet Impala
1985 Chevrolet Monte Carlo
1985 Chevrolet S10
1985 Chevrolet S10 Blazer
1985 Chevrolet Suburban
1985 GMC Caballero
1985 GMC S15 Jimmy
1985 GMC Safari
1985 GMC Sonoma
1985 GMC Suburban
1985 Oldsmobile 98
1985 Oldsmobile Custom Cruiser
1985 Oldsmobile Cutlass Supreme
1985 Oldsmobile Toronado
1985 Pontiac Bonneville
1985 Pontiac Firebird
1985 Pontiac Grand Prix
1985 Pontiac Parisienne
1984 Cadillac Brougham
1984 Cadillac DeVille
1984 Cadillac Eldorado
1984 Cadillac Fleetwood
1984 Cadillac Seville
1984 Chevrolet Camaro
1984 Chevrolet Caprice
1984 Chevrolet Celebrity
1984 Chevrolet Corvette
1984 Chevrolet El Camino
1984 Chevrolet Impala
1984 Chevrolet Monte Carlo
1984 Chevrolet S10
1984 Chevrolet S10 Blazer
1984 Chevrolet Suburban
1984 GMC Caballero
1984 GMC S15 Jimmy
1984 GMC Sonoma
1984 GMC Suburban
1984 Oldsmobile 98
1984 Oldsmobile Custom Cruiser
1984 Oldsmobile Cutlass Supreme
1984 Oldsmobile Toronado
1984 Pontiac Bonneville
1984 Pontiac Firebird
1984 Pontiac Grand Prix
1984 Pontiac Parisienne
1983 Cadillac Brougham
1983 Cadillac DeVille
1983 Cadillac Eldorado
1983 Cadillac Fleetwood
1983 Cadillac Seville
1983 Chevrolet Camaro
1983 Chevrolet Caprice
1983 Chevrolet Corvette
1983 Chevrolet Impala
1983 Chevrolet Malibu
1983 Chevrolet S10
1983 Chevrolet S10 Blazer
1983 GMC S15 Jimmy
1983 GMC Sonoma
1983 Oldsmobile 98
1983 Oldsmobile Custom Cruiser
1983 Oldsmobile Toronado
1983 Pontiac Bonneville
1983 Pontiac Firebird
1983 Pontiac Parisienne
1982 Cadillac Brougham
1982 Cadillac DeVille
1982 Cadillac Eldorado
1982 Cadillac Fleetwood
1982 Cadillac Seville
1982 Chevrolet Caprice
1982 Chevrolet Corvette
1982 Chevrolet Impala
1982 Oldsmobile 98
1982 Oldsmobile Custom Cruiser
1982 Oldsmobile Toronado
1982 Pontiac Bonneville
1981 Cadillac Brougham
1981 Cadillac DeVille
1981 Cadillac Eldorado
1981 Cadillac Fleetwood
1981 Cadillac Seville
1981 Oldsmobile 98
1981 Oldsmobile Custom Cruiser
1981 Oldsmobile Toronado

SKU: K77898A

GTIN: 840385631198

Manufacture Name: Suncoast Performance

Shipping Weight: 2 lb

Shipping Length: 4 in

Shipping Width: 4 in

Shipping Height: 4 in

EO Number:

Cross Reference #

California Proposition 65 Warning - P65warnings.ca.gov