12010936 - Wilwood 2-Piston Gray Anodized Replacment D52 Caliper - For 1.28" Thick Rotor

12010936 - Wilwood 2-Piston Gray Anodized Replacment D52 Caliper - For 1.28" Thick Rotor


In Stock Now!

MSRP: $215.99 ea
$195.99  ea


WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Wilwood 2-Piston Gray Anodized Replacment D52 Caliper - For 1.28" Thick Rotor

Wilwood D52 dual-piston calipers are a direct bolt on replacement for all 1968 and later GM trucks that were originally equipped with the big single piston calipers that used D52 pads. They mount in the stock location with stock dimension rotors and use OE type or aftermarket replacement D52 pads. Black anodized.
2.00" bore for 1.25" disc width. Vehicles 1978 & Up (with M10-1.5 banjo bolts) will require new brake lines.

NOTE: These calipers are for use on disc brake spindles only.

Applications:

  • Buick Centurion 1971-1973 All Sedan & Wagon
  • Buick Electra 1971-1976 All Sedan & Wagon
  • Buick Estate Wagon 1971-1976 All Sedan & Wagon
  • Buick LeSabre 1971-1976 All Sedan & Wagon
  • Buick LeSabre 1970 Disc Brake Spindle
  • Buick Riviera 1971-1976 All
  • Buick Riviera 1970 Disc Brake Spindle
  • Buick Wildcat 1970 Disc Brake Spindle
  • Cadillac Calais 1969-1976 All
  • Cadillac Calais 1968 Disc Brake Spindle
  • Cadillac DeVille 1969-1976 All
  • Cadillac DeVi lle 1968 Disc Brake Spindle
  • Cadillac DeVille 1994-1996 HD Brakes w/ Rear Drum
  • Cadillac Eldorado 1969-1978 All
  • Cadillac Fleetwood 1969-1976 All
  • Cadillac Fleetwood 1986-1989 Brougham, RWD, Armored Option
  • Cad illac Fleetwood 1990-1996 Brougham, RWD, HD, w/o ABS
  • Cadillac Fleetwood 1977-1984 Commercial Chassis
  • Cadillac Fleetwood 1968 Disc Brake Spindle
  • Cadillac Fleetwood 1994-1996 HD Brakes w/ Rear Drum
  • Cadillac Series 60 1969-1976 All
  • Cadillac Series 60 1968 Disc Brake Spindle
  • Cadillac Series 62 1969-1976 All
  • Cadillac Series 62 1968 Disc Brake Spindle
  • Cadillac Series 75 1969-1976 All
  • Cadillac Series 75 1968 Disc Brake Spin dle
  • Chevrolet Bel Air 1969-1970 Disc Brake Spindle
  • Chevrolet Bel Air 1971-1976 Sedan & Wagon
  • Chevrolet Bel Air 1968 w/o Power Disc Brakes (Single Piston Caliper)
  • Chevrolet Biscayne 1969-1970 Disc Brake Spindle
  • Chevrolet Biscayne 1971-1972 Sedan & Wagon
  • Chevrolet Biscayne 1968 w/o Power Disc Brakes (Single Piston Caliper)
  • Chevrolet Blazer 1981-1982 4 x 2
  • Chevrolet Blazer 1971-1972 4 x 2 w/ OE Disc Brake Spindle
  • Chevro let Blazer 1973-1980 4 x 2, OE Disc Brake Spindle
  • Chevrolet Blazer 1971-1991 4 x 4
  • Chevrolet Brookwood 1971-1972 All
  • Chevrolet Brookwood 1970 Disc Brake Spindle
  • Chevrolet C10 Pickup 1981-1986 4 x 2 w/ 1.25 Wide Fron t Rotor
  • Chevrolet C10 Pickup 1971-1972 4 x 2 w/ OE Disc Brake Spindle
  • Chevrolet C10 Pickup 1973-1980 4 x 2, OE Disc Brake Spindle
  • Chevrolet C10 Suburban 1981-1986 4 x 2 w/ 1.25 Wide Front Rotor
  • Chevrolet C10 Suburba n 1971-1972 4 x 2 w/ OE Disc Brake Spindle
  • Chevrolet C10 Suburban1973-1980 4 x 2, OE Disc Brake Spindle
  • Chevrolet C20 Pickup 1971-1978 4 x 2
  • Chevrolet C20 Pickup 1979-1988 4 x 2 w/ 11" Rear Drum Brakes
  • Chevrolet C20 Suburban 1971-1978 4 x 2
  • Chevrolet C20 Suburban 1979-1986 4 x 2w/ 11" Rear Drum Brakes
  • Chevrolet C30 Pickup 1971-1972 4 x 2
  • Chevrolet C30 Pickup 1973-1978 4 x 2 w/ 13 x 2.50" Rear Drum Brakes
  • Chevrolet Caprice 1969 -1970 Disc Brake Spindle
  • Chevrolet Caprice 1971-1976 Sedan & Wagon
  • Chevrolet Caprice 1968 w/o Power Disc Brakes (Single Piston Caliper)
  • Chevrolet Estate 1970 Disc Brake Spindle
  • Chevrolet G10 Van 1973-1995 All
  • Chevrolet G20 Van 1973-1995 All
  • Chevrolet G30 Van 1971-19784 x 2
  • Chevrolet G30 Van 1979-1984 w/ 11" Rear Drum Brakes
  • Chevrolet Impala 1969-1970 Disc Brake Spindle
  • Chevrolet Impala 1971-1976 Sedan & Wagon
  • Chevrolet Impala 1968 w/o Power Disc Brakes (Single Piston Caliper)
  • Chevrolet K10 Pickup 1971-1986 4 x 4
  • Chevrolet K10 Suburban 1971-1986 4 x 4
  • Chevrolet K20 Pickup 1971-1978 4 x 4
  • Chevrolet K20 Pickup 1979-1986 4 x 4 w/ 11" Rear Brakes
  • Chevrolet K20 Suburban 1971-1978 4 x 4
  • Chevrolet K20 Suburban 1979-1986 4 x 4 w/ 11" Rear Brakes
  • Chevrolet Kingswood 1971-1972 All
  • Chevrolet Kingswood 1970 Disc Brake Spindle
  • Chevr olet P10 Series 1971-1972 4 x 2 w/ OE Disc Brake Spindle
  • Chevrolet P10 Series 1973-1980 All
  • Chevrolet P20 Series 1971-1978 4 x 2
  • Chevrolet P20 Series 1979-1989 w/ 11" Rear Drum Brakes
  • Chevrolet P30 Series 1971-1973 All
  • Chevrolet P30 Series 1974-1975 w/ 13 x 2.50" Rear Drum Brakes
  • Chevrolet R10 Pickup 1987 4 x 2 w/ 1.25 Wide Front Rotor
  • Chevrolet R10 Suburban 1987 4 x 2 w/ 1.25 Wide Front Rotor
  • Chevrolet R1500 Suburban 1988-199 1 4 x 2
  • Chevrolet R20 Pickup 1989 4 x 2 w/ 11" Rear Brakes (R Models)
  • Chevrolet R20 Pickup 1987 4 x 2 w/ 11" Rear Drum Brakes
  • Chevrolet R20 Suburban 1987 4 x 2 w/ 11" Rear Drum Brakes
  • Chevrolet Townsman 1971-1972 Al l
  • Chevrolet Townsman 1970 Disc Brake Spindle
  • Chevrolet V10 Pickup 1987 4 x 4 (V Models)
  • Chevrolet V10 Suburban 1987-1988 4 x 4
  • Chevrolet V1500 Suburban 1989-1991 4 x 4
  • Chevrolet V20 Pickup 1987 4 x 4 w/ 11 " Rear Drum Brakes
  • Chevrolet V20 Suburban 1987 4 x 4 w/ 11" Rear Drum Brakes
  • GMC C1500 Pickup 1981-1986 4 x 2 w/ 1.25 Wide Front Rotor
  • GMC C1500 Pickup 1971-1980 4 x 2 w/ OE Disc Brake Spindle
  • GMC C1500 Suburban 198 1-1986 4 x 2 w/ 1.25 Wide Front Rotor
  • GMC C1500 Suburban 1971-1980 4 x 2 w/ OE Disc Brake Spindle
  • GMC C2500 Pickup 1971-1978 4 x 2
  • GMC C2500 Pickup 1989 4 x 2 w/ 11" Rear Brakes (R Models)
  • GMC C2500 Pickup 1979-1988 4 x 2 w/ 11" Rear Drum Brakes
  • GMC C2500 Suburban 1971-1978 4 x 2
  • GMC C2500 Suburban 1979-1988 4 x 2 w/ 11" Rear Drum Brakes
  • GMC C3500 Pickup 1971-1972 4 x 2
  • GMC C3500 Pickup 1973-1978 4 x 2 w/ 13 x 2.50" Rear Drum Brakes
  • GMC G15 Van 1973-1995 All
  • GMC G2500 Van 1973-1995 All
  • GMC G3500 Van 1971-1978 4 x 2
  • GMC G3500 Van 1979-1984 w/ 11" Rear Drum Brakes
  • GMC Jimmy 1981-1982 4 x 2
  • GMC Jimmy 1971-1980 4 x 2 w/ O E Disc Brake Spindle
  • GMC Jimmy 1971-1991 4 x 4
  • GMC K1500 Pickup 1971-1986 4 x 4
  • GMC K1500 Suburban 1971-1986 4 x 4
  • GMC K2500 Pickup 1971-1978 4 x 4
  • GMC K2500 Pickup 1979-1986 4 x 4 w/ 11" Rear Brakes
  • GMC K2500 Suburban 1971-1978 4 x 4
  • GMC K2500 Suburban 1979-1986 4 x 4 w/ 11" Rear Brakes
  • GMC P15 Series 1971-1972 4 x 2 w/ OE Disc Brake Spindle
  • GMC P15 Series 1973-1980 All
  • GMC P25 Series 1971-1978 4 x 2
  • GMC P25 Series 1979-1989 w/ 11" Rear Drum Brakes
  • GMC P35 Series 1971-1973 All
  • GMC P35 Series 1974-1975 w/ 13 x 2.50" Rear Drum Brakes
  • GMC R1500 Pickup 1987 4 x 2 w/ 1.25 Wide Front Rotor
  • GMC R1500 Suburban 1988 -1991 4 x 2
  • GMC R1500 Suburban 1987 4 x 2 w/ 1.25 Wide Front Rotor
  • GMC R2500 Pickup 1987 4 x 2 w/ 11" Rear Drum Brakes
  • GMC R2500 Suburban 1987 4 x 2 w/ 11" Rear Drum Brakes
  • GMC V1500 Pickup 1987 4 x 4
  • GMC V1500 Suburban 1987-1991 4 x 4
  • GMC V2500 Pickup 1987 4 x 4 w/ 11"Rear Drum Brakes
  • GMC V2500 Suburban 1987 4 x 4 w/ 11" Rear Drum Brakes
  • Jeep Cherokee 1977-1983 All
  • Jeep Cherokee 1974-1976 Disc Brake Spindle
  • Jeep Grand Wagoneer 1984-1991 All
  • Jeep J10 Truck 1977-1983 All
  • Jeep J10 Truck 1974-1976 Disc Brake Spindle
  • Jeep J20 Truck 1977-1983 All
  • Jeep J20 Truck 1974-1976 Disc Brake Spindle
  • Jeep Wagoneer 1977-1983 All
  • Jeep Wagoneer 1974-1976 Disc Brake Spindle
  • Oldsmobile 98 1971-1976 All
  • Oldsmobile 98 1969-1970 Disc Brake Spindle
  • Oldsmobile Custom Cruiser 1971-1976 All
  • Oldsmobile Series 88 1971-1976 All
  • O ldsmobile Series 88 1969-1970 Disc Brake Spindle
  • Oldsmobile Toronado 1970-1978 All
  • Oldsmobile Toronado 1969 Disc Brake Spindle
  • Pontiac Bonneville 1969-1970 Disc Brake Front
  • Pontiac Bonneville 1971-1976 Sedan & Wagon
  • Pontiac Catalina 1969-1970 Disc Brake Front
  • Pontiac Catalina 1971-1976 Sedan & Wagon
  • Pontiac Executive 1969-1970 Disc Brake Front
  • Pontiac Grandville 1971-1974 Sedan & Wagon
  • Pontiac Safari 1969 Disc Brake Front

This product fits the following vehicle applications. Click to view individual years.

Product Specifications

Shipping Dimensions
  • Weight: 5 Lbs, 16 Ozs
  • Dimensions: L: 9" x W: 6" x H: 4"
  • Ship Type: Standard |
Product Information
Wilwood 2-Piston Gray Anodized Replacment D52 Caliper - For 1.28" Thick Rotor

Wilwood D52 dual-piston calipers are a direct bolt on replacement for all 1968 and later GM trucks that were originally equipped with the big single piston calipers that used D52 pads. They mount in the stock location with stock dimension rotors and use OE type or aftermarket replacement D52 pads. Black anodized.
2.00" bore for 1.25" disc width. Vehicles 1978 & Up (with M10-1.5 banjo bolts) will require new brake lines.

NOTE: These calipers are for use on disc brake spindles only.

Applications:

  • Buick Centurion 1971-1973 All Sedan & Wagon
  • Buick Electra 1971-1976 All Sedan & Wagon
  • Buick Estate Wagon 1971-1976 All Sedan & Wagon
  • Buick LeSabre 1971-1976 All Sedan & Wagon
  • Buick LeSabre 1970 Disc Brake Spindle
  • Buick Riviera 1971-1976 All
  • Buick Riviera 1970 Disc Brake Spindle
  • Buick Wildcat 1970 Disc Brake Spindle
  • Cadillac Calais 1969-1976 All
  • Cadillac Calais 1968 Disc Brake Spindle
  • Cadillac DeVille 1969-1976 All
  • Cadillac DeVi lle 1968 Disc Brake Spindle
  • Cadillac DeVille 1994-1996 HD Brakes w/ Rear Drum
  • Cadillac Eldorado 1969-1978 All
  • Cadillac Fleetwood 1969-1976 All
  • Cadillac Fleetwood 1986-1989 Brougham, RWD, Armored Option
  • Cad illac Fleetwood 1990-1996 Brougham, RWD, HD, w/o ABS
  • Cadillac Fleetwood 1977-1984 Commercial Chassis
  • Cadillac Fleetwood 1968 Disc Brake Spindle
  • Cadillac Fleetwood 1994-1996 HD Brakes w/ Rear Drum
  • Cadillac Series 60 1969-1976 All
  • Cadillac Series 60 1968 Disc Brake Spindle
  • Cadillac Series 62 1969-1976 All
  • Cadillac Series 62 1968 Disc Brake Spindle
  • Cadillac Series 75 1969-1976 All
  • Cadillac Series 75 1968 Disc Brake Spin dle
  • Chevrolet Bel Air 1969-1970 Disc Brake Spindle
  • Chevrolet Bel Air 1971-1976 Sedan & Wagon
  • Chevrolet Bel Air 1968 w/o Power Disc Brakes (Single Piston Caliper)
  • Chevrolet Biscayne 1969-1970 Disc Brake Spindle
  • Chevrolet Biscayne 1971-1972 Sedan & Wagon
  • Chevrolet Biscayne 1968 w/o Power Disc Brakes (Single Piston Caliper)
  • Chevrolet Blazer 1981-1982 4 x 2
  • Chevrolet Blazer 1971-1972 4 x 2 w/ OE Disc Brake Spindle
  • Chevro let Blazer 1973-1980 4 x 2, OE Disc Brake Spindle
  • Chevrolet Blazer 1971-1991 4 x 4
  • Chevrolet Brookwood 1971-1972 All
  • Chevrolet Brookwood 1970 Disc Brake Spindle
  • Chevrolet C10 Pickup 1981-1986 4 x 2 w/ 1.25 Wide Fron t Rotor
  • Chevrolet C10 Pickup 1971-1972 4 x 2 w/ OE Disc Brake Spindle
  • Chevrolet C10 Pickup 1973-1980 4 x 2, OE Disc Brake Spindle
  • Chevrolet C10 Suburban 1981-1986 4 x 2 w/ 1.25 Wide Front Rotor
  • Chevrolet C10 Suburba n 1971-1972 4 x 2 w/ OE Disc Brake Spindle
  • Chevrolet C10 Suburban1973-1980 4 x 2, OE Disc Brake Spindle
  • Chevrolet C20 Pickup 1971-1978 4 x 2
  • Chevrolet C20 Pickup 1979-1988 4 x 2 w/ 11" Rear Drum Brakes
  • Chevrolet C20 Suburban 1971-1978 4 x 2
  • Chevrolet C20 Suburban 1979-1986 4 x 2w/ 11" Rear Drum Brakes
  • Chevrolet C30 Pickup 1971-1972 4 x 2
  • Chevrolet C30 Pickup 1973-1978 4 x 2 w/ 13 x 2.50" Rear Drum Brakes
  • Chevrolet Caprice 1969 -1970 Disc Brake Spindle
  • Chevrolet Caprice 1971-1976 Sedan & Wagon
  • Chevrolet Caprice 1968 w/o Power Disc Brakes (Single Piston Caliper)
  • Chevrolet Estate 1970 Disc Brake Spindle
  • Chevrolet G10 Van 1973-1995 All
  • Chevrolet G20 Van 1973-1995 All
  • Chevrolet G30 Van 1971-19784 x 2
  • Chevrolet G30 Van 1979-1984 w/ 11" Rear Drum Brakes
  • Chevrolet Impala 1969-1970 Disc Brake Spindle
  • Chevrolet Impala 1971-1976 Sedan & Wagon
  • Chevrolet Impala 1968 w/o Power Disc Brakes (Single Piston Caliper)
  • Chevrolet K10 Pickup 1971-1986 4 x 4
  • Chevrolet K10 Suburban 1971-1986 4 x 4
  • Chevrolet K20 Pickup 1971-1978 4 x 4
  • Chevrolet K20 Pickup 1979-1986 4 x 4 w/ 11" Rear Brakes
  • Chevrolet K20 Suburban 1971-1978 4 x 4
  • Chevrolet K20 Suburban 1979-1986 4 x 4 w/ 11" Rear Brakes
  • Chevrolet Kingswood 1971-1972 All
  • Chevrolet Kingswood 1970 Disc Brake Spindle
  • Chevr olet P10 Series 1971-1972 4 x 2 w/ OE Disc Brake Spindle
  • Chevrolet P10 Series 1973-1980 All
  • Chevrolet P20 Series 1971-1978 4 x 2
  • Chevrolet P20 Series 1979-1989 w/ 11" Rear Drum Brakes
  • Chevrolet P30 Series 1971-1973 All
  • Chevrolet P30 Series 1974-1975 w/ 13 x 2.50" Rear Drum Brakes
  • Chevrolet R10 Pickup 1987 4 x 2 w/ 1.25 Wide Front Rotor
  • Chevrolet R10 Suburban 1987 4 x 2 w/ 1.25 Wide Front Rotor
  • Chevrolet R1500 Suburban 1988-199 1 4 x 2
  • Chevrolet R20 Pickup 1989 4 x 2 w/ 11" Rear Brakes (R Models)
  • Chevrolet R20 Pickup 1987 4 x 2 w/ 11" Rear Drum Brakes
  • Chevrolet R20 Suburban 1987 4 x 2 w/ 11" Rear Drum Brakes
  • Chevrolet Townsman 1971-1972 Al l
  • Chevrolet Townsman 1970 Disc Brake Spindle
  • Chevrolet V10 Pickup 1987 4 x 4 (V Models)
  • Chevrolet V10 Suburban 1987-1988 4 x 4
  • Chevrolet V1500 Suburban 1989-1991 4 x 4
  • Chevrolet V20 Pickup 1987 4 x 4 w/ 11 " Rear Drum Brakes
  • Chevrolet V20 Suburban 1987 4 x 4 w/ 11" Rear Drum Brakes
  • GMC C1500 Pickup 1981-1986 4 x 2 w/ 1.25 Wide Front Rotor
  • GMC C1500 Pickup 1971-1980 4 x 2 w/ OE Disc Brake Spindle
  • GMC C1500 Suburban 198 1-1986 4 x 2 w/ 1.25 Wide Front Rotor
  • GMC C1500 Suburban 1971-1980 4 x 2 w/ OE Disc Brake Spindle
  • GMC C2500 Pickup 1971-1978 4 x 2
  • GMC C2500 Pickup 1989 4 x 2 w/ 11" Rear Brakes (R Models)
  • GMC C2500 Pickup 1979-1988 4 x 2 w/ 11" Rear Drum Brakes
  • GMC C2500 Suburban 1971-1978 4 x 2
  • GMC C2500 Suburban 1979-1988 4 x 2 w/ 11" Rear Drum Brakes
  • GMC C3500 Pickup 1971-1972 4 x 2
  • GMC C3500 Pickup 1973-1978 4 x 2 w/ 13 x 2.50" Rear Drum Brakes
  • GMC G15 Van 1973-1995 All
  • GMC G2500 Van 1973-1995 All
  • GMC G3500 Van 1971-1978 4 x 2
  • GMC G3500 Van 1979-1984 w/ 11" Rear Drum Brakes
  • GMC Jimmy 1981-1982 4 x 2
  • GMC Jimmy 1971-1980 4 x 2 w/ O E Disc Brake Spindle
  • GMC Jimmy 1971-1991 4 x 4
  • GMC K1500 Pickup 1971-1986 4 x 4
  • GMC K1500 Suburban 1971-1986 4 x 4
  • GMC K2500 Pickup 1971-1978 4 x 4
  • GMC K2500 Pickup 1979-1986 4 x 4 w/ 11" Rear Brakes
  • GMC K2500 Suburban 1971-1978 4 x 4
  • GMC K2500 Suburban 1979-1986 4 x 4 w/ 11" Rear Brakes
  • GMC P15 Series 1971-1972 4 x 2 w/ OE Disc Brake Spindle
  • GMC P15 Series 1973-1980 All
  • GMC P25 Series 1971-1978 4 x 2
  • GMC P25 Series 1979-1989 w/ 11" Rear Drum Brakes
  • GMC P35 Series 1971-1973 All
  • GMC P35 Series 1974-1975 w/ 13 x 2.50" Rear Drum Brakes
  • GMC R1500 Pickup 1987 4 x 2 w/ 1.25 Wide Front Rotor
  • GMC R1500 Suburban 1988 -1991 4 x 2
  • GMC R1500 Suburban 1987 4 x 2 w/ 1.25 Wide Front Rotor
  • GMC R2500 Pickup 1987 4 x 2 w/ 11" Rear Drum Brakes
  • GMC R2500 Suburban 1987 4 x 2 w/ 11" Rear Drum Brakes
  • GMC V1500 Pickup 1987 4 x 4
  • GMC V1500 Suburban 1987-1991 4 x 4
  • GMC V2500 Pickup 1987 4 x 4 w/ 11"Rear Drum Brakes
  • GMC V2500 Suburban 1987 4 x 4 w/ 11" Rear Drum Brakes
  • Jeep Cherokee 1977-1983 All
  • Jeep Cherokee 1974-1976 Disc Brake Spindle
  • Jeep Grand Wagoneer 1984-1991 All
  • Jeep J10 Truck 1977-1983 All
  • Jeep J10 Truck 1974-1976 Disc Brake Spindle
  • Jeep J20 Truck 1977-1983 All
  • Jeep J20 Truck 1974-1976 Disc Brake Spindle
  • Jeep Wagoneer 1977-1983 All
  • Jeep Wagoneer 1974-1976 Disc Brake Spindle
  • Oldsmobile 98 1971-1976 All
  • Oldsmobile 98 1969-1970 Disc Brake Spindle
  • Oldsmobile Custom Cruiser 1971-1976 All
  • Oldsmobile Series 88 1971-1976 All
  • O ldsmobile Series 88 1969-1970 Disc Brake Spindle
  • Oldsmobile Toronado 1970-1978 All
  • Oldsmobile Toronado 1969 Disc Brake Spindle
  • Pontiac Bonneville 1969-1970 Disc Brake Front
  • Pontiac Bonneville 1971-1976 Sedan & Wagon
  • Pontiac Catalina 1969-1970 Disc Brake Front
  • Pontiac Catalina 1971-1976 Sedan & Wagon
  • Pontiac Executive 1969-1970 Disc Brake Front
  • Pontiac Grandville 1971-1974 Sedan & Wagon
  • Pontiac Safari 1969 Disc Brake Front

Vehicle Fitment

This product fits the following vehicle applications. Click to view individual years.

Specifications

Product Specifications

Shipping Dimensions
  • Weight: 5 Lbs, 16 Ozs
  • Dimensions: 9" x 6" x 4"
  • Ship Type: Standard |


  • Product #:
  • SHIP TYPE:
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

This product fits the following vehicle applications. Click to view individual years.

Shipping Dimensions