Dynamic Friction 365-47044 Brake Drum - Rear
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Dynamic Friction
 True Balanced Brake Drum

Dynamic Friction 365-47044 Brake Drum - Rear

Brand Dynamic Friction 320.66006F
ABS Tone Ring Included No
Bearings Included No
Center Hole Diameter 2.783
Center Hole Diameter 70.700
Disc Finish Fully Coated
Disc Mounting [cntrc] Floating
Discard Thickness 0.957
Discard Thickness 24.300
Hat Finish Coated
Misc Holes [cntrc] 0
Mounting Bolt Hole Circle Diameter 4.748
Mounting Bolt Hole Circle Diameter 120.600
Nominal Thickness 1.035
Nominal Thickness 26.300
Outside Diameter 10.500
Outside Diameter 266.700
Overall Height 2.047
Overall Height 52.000
Solid Or Vented Type Rotor Vented
Stud/Lug Hole Diameter 0.524
Stud/Lug Hole Diameter 13.300
Stud/Lug Hole Quantity 5
Surface Type Smooth
Vane Style [cntrc] Straight
Weight [cntrc] kgs 6.450
Weight [cntrc] lbs 14.200
Product line True Balanced Brake Drum
Fits —83 vehicles

True balanced design. Helps deliver smoother, more consistent braking performance.

Brake drum. A direct replacement part for drum brake systems.

$155.49Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Brake Drums are typically replaced in pairs, axle by axle.
Order total $155.49
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
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Dynamic Friction 365-47044 Rear Brake Drum

The Dynamic Friction True Balanced Brake Drum is built for rear brake service on select Chevrolet and GMC heavy-duty trucks and Suburban models. This part number 365-47044 is listed for 1981-1989 applications with 11-inch rear drums and related JB6/JD6 brake configurations, giving you a direct-fit option for common rear brake drum replacement jobs.

Key Features

  • Brand: Dynamic Friction
  • Brand line: True Balanced Brake Drum
  • Part number: 365-47044
  • Rear brake drum for select Chevrolet and GMC applications
  • Coverage includes 1981-1989 model years
  • Fits vehicles with 11-inch rear drums and listed brake-system notes
  • Application-specific fitment for rear axle service

Fitment Details

  • Fits 1984-1989 Chevrolet P20, rear, 11 inch Rear Drums; JB6 & JD6 Brakes.
  • Fits 1984-1989 GMC P2500, rear, rear disc brake rotor designed for 11 inch rear drums.
  • Fits 1987-1988 GMC V2500 Suburban, rear, rear disc brake rotor designed for 11 inch rear drums.
  • Fits 1987 Chevrolet R20, rear, rear disc brake rotor designed for 11 inch rear drums.
  • Fits 1987 Chevrolet R20 Suburban, rear, 11 inch Rear Drums (JB6 & JD6 Brakes).
  • Fits 1987 Chevrolet V20, rear, rear disc brake rotor designed for 11 inch rear drums.
  • Fits 1987 Chevrolet V20 Suburban, rear, rear disc brake rotor designed for 11 inch rear drums.
  • Fits 1987 GMC R2500, rear, rear disc brake rotor designed for 11 inch rear drums.
  • Fits 1987 GMC R2500 Suburban, rear, 11 inch Rear Drums; JB6 & JD6 Brakes.
  • Fits 1987 GMC V2500, rear, 11 inch Rear Drums; excluding JB7 & JD7 Brakes; Rotors Only.
  • Fits 1985-1986 Chevrolet C20, rear, rear 11-inch Disc Brake Rotor compatible with JB6 & JD6 braking systems.
  • Fits 1985-1986 Chevrolet C20 Suburban, rear, rear 11-inch Disc Brake Rotor compatible with JB6 & JD6 braking systems.
  • Fits 1985-1986 Chevrolet K20, rear, 11 inch Rear Drums; JB6 & JD6 Brakes; 9-1/2 inch Rear Axle; Rotor Only.
  • Fits 1985-1986 Chevrolet K20, rear, 11 inch Rear Drums; JB6 & JD6 Brakes; 9-1/2 inch Rear Axle; Hub & Rotor Assembly.
  • Fits 1985-1986 Chevrolet K20 Suburban, rear, 11 inch Rear Drums; Rotor Only.
  • Fits 1985-1986 Chevrolet K20 Suburban, rear, 11 inch Rear Drums; GM & Dana 44-5F & 44-6F Axles; Hub & Rotor Assembly.
  • Fits 1985-1986 GMC C2500, rear, rear disc brake rotor designed for 11 inch rear drums.
  • Fits 1985-1986 GMC C2500 Suburban, rear, 11 inch Rear Drums; JB6 & JD6 Brakes.
  • Fits 1985-1986 GMC K2500, rear, 11 inch Rear Drums; Rotor Only.
  • Fits 1985-1986 GMC K2500, rear, 11 inch Rear Drums; Hub & Rotor Assembly.
  • Fits 1985-1986 GMC K2500 Suburban, rear, 11 inch Rear Drums; Rotor Only.
  • Fits 1985-1986 GMC K2500 Suburban, rear, 11 inch Rear Drums; Hub & Rotor.
  • Fits 1981-1984 Chevrolet C20, rear, suitable for Disc Brake Rotor with 11 inch Rear Drums, JB6 & JD6 Brakes, and 6-3/8 inch Tall Drums.
  • Fits 1981-1984 Chevrolet C20 Suburban, rear, 11 inch Rear Drums, JB6 & JD6 Brakes, 6-3/8 inch Tall Drums, Under 7'500 lb Gross Vehicle Weight (GVW).
  • Fits 1981-1984 Chevrolet K20, rear, 11 inch Rear Drums; JB6 & JD6 Brakes; 9-1/2 inch Rear Axle; 6-3/8 inch Tall Drums.
  • Fits 1981-1984 Chevrolet K20 Suburban, rear, 11 inch Rear Drums; 6-3/8 inch Tall Drums.
  • Fits 1981-1984 GMC C2500, rear, 11 inch Rear Drums; 6-3/8 inch Tall Drums.
  • Fits 1981-1984 GMC C2500 Suburban, rear, 11 inch Rear Drums; Under 7'500 lb Gross Vehicle Weight (GVW); JB6 & JD6 Brakes; 6-3/8 inch Tall Drums.
  • Fits 1981-1984 GMC K2500, rear, 11 inch Rear Drums; 6-3/8 inch Tall Drums.
  • Fits 1981-1984 GMC K2500 Suburban, rear, 11 inch Rear Drums; 6-3/8 inch Tall Drums.
  • Fits 1981-1983 Chevrolet P20, rear, 11 inch Rear Drums; JB6 & JD6 Brakes; 6-3/8 inch Tall Drums.
  • Fits 1981-1983 GMC P2500, rear, 11 inch Rear Drums; 6-3/8 inch Tall Drums.

Common Repair Uses

  • Rear brake drum replacement for worn or out-of-round drums
  • Correction of rear brake pulsation or uneven braking feel
  • Service for vehicles with brake noise from drum wear
  • Restoration of proper rear brake contact on listed Chevrolet and GMC models
  • Replacement during rear brake overhaul on 1981-1989 trucks and Suburbans

Installation Notes

Verify rear brake system details before ordering, including 11-inch drum size, JB6/JD6 brake codes, axle configuration, and any notes listed for your exact vehicle. This part number 365-47044 is listed for rear position applications only, so match the vehicle notes carefully against your existing brake setup.

Quality Assurance

Dynamic Friction’s True Balanced Brake Drum line is identified as a dedicated brake drum product line for rear brake service. Use the confirmed fitment list to match your Chevrolet P20, GMC P2500, or other listed Chevrolet and GMC applications before installation.

Related reading

This part fits 83 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1989ChevroletP20Rear11 inch Rear Drums; JB6 & JD6 Brakes; True Balanced Brake Drum
1989GMCP2500RearRear disc brake rotor designed for 11 inch rear drums.; True Balanced Brake Drum
1988ChevroletP20Rear11 inch Rear Drums; JB6 & JD6 Brakes; True Balanced Brake Drum
1988GMCP2500RearRear disc brake rotor designed for 11 inch rear drums.; True Balanced Brake Drum
1988GMCV2500 SuburbanRearRear disc brake rotor designed for 11 inch rear drums.; True Balanced Brake Drum
1987ChevroletP20Rear11 inch Rear Drums; JB6 & JD6 Brakes; True Balanced Brake Drum
1987ChevroletR20RearRear disc brake rotor designed for 11 inch rear drums.; True Balanced Brake Drum
1987ChevroletR20 SuburbanRear11 inch Rear Drums (JB6 & JD6 Brakes); True Balanced Brake Drum
1987ChevroletV20RearRear disc brake rotor designed for 11 inch rear drums.; True Balanced Brake Drum
1987ChevroletV20 SuburbanRearRear disc brake rotor designed for 11 inch rear drums.; True Balanced Brake Drum
1987GMCP2500RearRear disc brake rotor designed for 11 inch rear drums.; True Balanced Brake Drum
1987GMCR2500RearRear disc brake rotor designed for 11 inch rear drums.; True Balanced Brake Drum
1987GMCR2500 SuburbanRear11 inch Rear Drums; JB6 & JD6 Brakes; True Balanced Brake Drum
1987GMCV2500Rear11 inch Rear Drums; excluding JB7 & JD7 Brakes; Rotors Only; True Balanced Brake Drum
1987GMCV2500 SuburbanRearRear disc brake rotor designed for 11 inch rear drums.; True Balanced Brake Drum
1986ChevroletC20RearRear 11-inch Disc Brake Rotor compatible with JB6 & JD6 braking systems; True Balanced Brake Drum
1986ChevroletC20 SuburbanRearRear 11-inch Disc Brake Rotor compatible with JB6 & JD6 braking systems; True Balanced Brake Drum
1986ChevroletK20Rear11 inch Rear Drums; JB6 & JD6 Brakes; 9-1/2 inch Rear Axle; Rotor Only; True Balanced Brake Drum
1986ChevroletK20Rear11 inch Rear Drums; JB6 & JD6 Brakes; 9-1/2 inch Rear Axle; Hub & Rotor Assembly; True Balanced Brake Drum
1986ChevroletK20 SuburbanRear11 inch Rear Drums; Rotor Only; True Balanced Brake Drum
1986ChevroletK20 SuburbanRear11 inch Rear Drums; GM & Dana 44-5F & 44-6F Axles; Hub & Rotor Assembly; True Balanced Brake Drum
1986ChevroletP20Rear11 inch Rear Drums; JB6 & JD6 Brakes; True Balanced Brake Drum
1986GMCC2500RearRear disc brake rotor designed for 11 inch rear drums.; True Balanced Brake Drum
1986GMCC2500 SuburbanRear11 inch Rear Drums; JB6 & JD6 Brakes; True Balanced Brake Drum
1986GMCK2500Rear11 inch Rear Drums; Rotor Only; True Balanced Brake Drum
1986GMCK2500Rear11 inch Rear Drums; Hub & Rotor Assembly; True Balanced Brake Drum
1986GMCK2500 SuburbanRear11 inch Rear Drums; Rotor Only; True Balanced Brake Drum
1986GMCK2500 SuburbanRear11 inch Rear Drums; Hub & Rotor; True Balanced Brake Drum
1986GMCP2500RearRear disc brake rotor designed for 11 inch rear drums.; True Balanced Brake Drum
1985ChevroletC20RearRear 11-inch Disc Brake Rotor compatible with JB6 & JD6 braking systems; True Balanced Brake Drum
1985ChevroletC20 SuburbanRearRear 11-inch Disc Brake Rotor compatible with JB6 & JD6 braking systems; True Balanced Brake Drum
1985ChevroletK20Rear11 inch Rear Drums; JB6 & JD6 Brakes; 9-1/2 inch Rear Axle; Rotor Only; True Balanced Brake Drum
1985ChevroletK20Rear11 inch Rear Drums; JB6 & JD6 Brakes; 9-1/2 inch Rear Axle; Hub & Rotor Assembly; True Balanced Brake Drum
1985ChevroletK20 SuburbanRear11 inch Rear Drums; Rotor Only; True Balanced Brake Drum
1985ChevroletK20 SuburbanRear11 inch Rear Drums; GM & Dana 44-5F & 44-6F Axles; Hub & Rotor Assembly; True Balanced Brake Drum
1985ChevroletP20Rear11 inch Rear Drums; JB6 & JD6 Brakes; True Balanced Brake Drum
1985GMCC2500RearRear disc brake rotor designed for 11 inch rear drums.; True Balanced Brake Drum
1985GMCC2500 SuburbanRear11 inch Rear Drums; JB6 & JD6 Brakes; True Balanced Brake Drum
1985GMCK2500Rear11 inch Rear Drums; Rotor Only; True Balanced Brake Drum
1985GMCK2500Rear11 inch Rear Drums; Hub & Rotor Assembly; True Balanced Brake Drum
1985GMCK2500 SuburbanRear11 inch Rear Drums; Rotor Only; True Balanced Brake Drum
1985GMCK2500 SuburbanRear11 inch Rear Drums; Hub & Rotor; True Balanced Brake Drum
1985GMCP2500RearRear disc brake rotor designed for 11 inch rear drums.; True Balanced Brake Drum
1984ChevroletC20RearSuitable for Disc Brake Rotor with 11 inch Rear Drums, JB6 & JD6 Brakes, and 6-3/8 inch Tall Drums.; True Balanced Brake Drum
1984ChevroletC20 SuburbanRear11 inch Rear Drums, JB6 & JD6 Brakes, 6-3/8 inch Tall Drums, Under 7'500 lb Gross Vehicle Weight (GVW); True Balanced Brake Drum
1984ChevroletK20Rear11 inch Rear Drums; JB6 & JD6 Brakes; 9-1/2 inch Rear Axle; 6-3/8 inch Tall Drums; True Balanced Brake Drum
1984ChevroletK20 SuburbanRear11 inch Rear Drums; 6-3/8 inch Tall Drums; True Balanced Brake Drum
1984ChevroletP20Rear11 inch Rear Drums; JB6 & JD6 Brakes; True Balanced Brake Drum
1984GMCC2500Rear11 inch Rear Drums; 6-3/8 inch Tall Drums; True Balanced Brake Drum
1984GMCC2500 SuburbanRear11 inch Rear Drums; Under 7'500 lb Gross Vehicle Weight (GVW); JB6 & JD6 Brakes; 6-3/8 inch Tall Drums; True Balanced Brake Drum
1984GMCK2500Rear11 inch Rear Drums; 6-3/8 inch Tall Drums; True Balanced Brake Drum
1984GMCK2500 SuburbanRear11 inch Rear Drums; 6-3/8 inch Tall Drums; True Balanced Brake Drum
1984GMCP2500RearRear disc brake rotor designed for 11 inch rear drums.; True Balanced Brake Drum
1983ChevroletC20RearSuitable for Disc Brake Rotor with 11 inch Rear Drums, JB6 & JD6 Brakes, and 6-3/8 inch Tall Drums.; True Balanced Brake Drum
1983ChevroletC20 SuburbanRear11 inch Rear Drums, JB6 & JD6 Brakes, 6-3/8 inch Tall Drums, Under 7'500 lb Gross Vehicle Weight (GVW); True Balanced Brake Drum
1983ChevroletK20Rear11 inch Rear Drums; JB6 & JD6 Brakes; 9-1/2 inch Rear Axle; 6-3/8 inch Tall Drums; True Balanced Brake Drum
1983ChevroletK20 SuburbanRear11 inch Rear Drums; 6-3/8 inch Tall Drums; True Balanced Brake Drum
1983ChevroletP20Rear11 inch Rear Drums; JB6 & JD6 Brakes; 6-3/8 inch Tall Drums; True Balanced Brake Drum
1983GMCC2500Rear11 inch Rear Drums; 6-3/8 inch Tall Drums; True Balanced Brake Drum
1983GMCC2500 SuburbanRear11 inch Rear Drums; Under 7'500 lb Gross Vehicle Weight (GVW); JB6 & JD6 Brakes; 6-3/8 inch Tall Drums; True Balanced Brake Drum
1983GMCK2500Rear11 inch Rear Drums; 6-3/8 inch Tall Drums; True Balanced Brake Drum
1983GMCK2500 SuburbanRear11 inch Rear Drums; 6-3/8 inch Tall Drums; True Balanced Brake Drum
1983GMCP2500Rear11 inch Rear Drums; 6-3/8 inch Tall Drums; True Balanced Brake Drum
1982ChevroletC20RearSuitable for Disc Brake Rotor with 11 inch Rear Drums, JB6 & JD6 Brakes, and 6-3/8 inch Tall Drums.; True Balanced Brake Drum
1982ChevroletC20 SuburbanRear11 inch Rear Drums, JB6 & JD6 Brakes, 6-3/8 inch Tall Drums, Under 7'500 lb Gross Vehicle Weight (GVW); True Balanced Brake Drum
1982ChevroletK20Rear11 inch Rear Drums; JB6 & JD6 Brakes; 9-1/2 inch Rear Axle; 6-3/8 inch Tall Drums; True Balanced Brake Drum
1982ChevroletK20 SuburbanRear11 inch Rear Drums; 6-3/8 inch Tall Drums; True Balanced Brake Drum
1982ChevroletP20Rear11 inch Rear Drums; JB6 & JD6 Brakes; 6-3/8 inch Tall Drums; True Balanced Brake Drum
1982GMCC2500Rear11 inch Rear Drums; 6-3/8 inch Tall Drums; True Balanced Brake Drum
1982GMCC2500 SuburbanRear11 inch Rear Drums; Under 7'500 lb Gross Vehicle Weight (GVW); JB6 & JD6 Brakes; 6-3/8 inch Tall Drums; True Balanced Brake Drum
1982GMCK2500Rear11 inch Rear Drums; 6-3/8 inch Tall Drums; True Balanced Brake Drum
1982GMCK2500 SuburbanRear11 inch Rear Drums; 6-3/8 inch Tall Drums; True Balanced Brake Drum
1982GMCP2500Rear11 inch Rear Drums; 6-3/8 inch Tall Drums; True Balanced Brake Drum
1981ChevroletC20RearSuitable for Disc Brake Rotor with 11 inch Rear Drums, JB6 & JD6 Brakes, and 6-3/8 inch Tall Drums.; True Balanced Brake Drum
1981ChevroletC20 SuburbanRear11 inch Rear Drums, JB6 & JD6 Brakes, 6-3/8 inch Tall Drums, Under 7'500 lb Gross Vehicle Weight (GVW); True Balanced Brake Drum
1981ChevroletK20Rear11 inch Rear Drums; JB6 & JD6 Brakes; 9-1/2 inch Rear Axle; 6-3/8 inch Tall Drums; True Balanced Brake Drum
1981ChevroletK20 SuburbanRear11 inch Rear Drums; 6-3/8 inch Tall Drums; True Balanced Brake Drum
1981ChevroletP20Rear11 inch Rear Drums; JB6 & JD6 Brakes; 6-3/8 inch Tall Drums; True Balanced Brake Drum
1981GMCC2500Rear11 inch Rear Drums; 6-3/8 inch Tall Drums; True Balanced Brake Drum
1981GMCC2500 SuburbanRear11 inch Rear Drums; Under 7'500 lb Gross Vehicle Weight (GVW); JB6 & JD6 Brakes; 6-3/8 inch Tall Drums; True Balanced Brake Drum
1981GMCK2500Rear11 inch Rear Drums; 6-3/8 inch Tall Drums; True Balanced Brake Drum
1981GMCK2500 SuburbanRear11 inch Rear Drums; 6-3/8 inch Tall Drums; True Balanced Brake Drum
1981GMCP2500Rear11 inch Rear Drums; 6-3/8 inch Tall Drums; True Balanced Brake Drum