Dorman 929-728 Rear U-Bolt Repair Kit 72-91 GMC C3500 K3500 Chevy C30 Pickup R30
Confirm Fitment Before You Buy
Not sure it fits? Message Year/Make/Model/Engine (2WD/4WD if applicable) and we’ll help confirm compatibility.
Why buy from Koskowski Automotive?
• 50+ years (since 1972) • Dorman Authorized Seller • Fast shipping • Easy returns
Regular price
$56.46
Select your vehicle at the top of the page to check fitment.
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Vehicle Fitment: Use the table below to match your exact configuration. If you don’t see your exact setup, message us before ordering.
The components in this leaf spring axle U-bolt kit are designed to securely hold the leaf spring or leaf spring bundle to the underside of an axle of a vehicle or trailer. Check the leaf spring dimensions and other relevant application details to select the right type and size U-bolt kit for your needs.
- Reliable hardware - the components in this leaf spring axle U-bolt kit are designed to securely hold the leaf spring or leaf spring bundle to the underside of a vehicle or trailer axle
- Check fit - carefully review the dimensions of the leaf springs that will be used and other relevant application details to select the right type and size U-bolt kit for your needs
- Durable construction - the components in this kit are engineered from quality materials for reliable performance and long service life
- Trustworthy quality - backed by a team of product experts in the United States and more than a century of automotive experience
Vehicle Fitment
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1975-1986 | Chevrolet | C30 | Rear | 5/8 In. x 2.5625 In. x 12.625 In.; Grade 8; Square Bend |
| 1973-1974 | Chevrolet | C30 Pickup | Rear | 5/8 In. x 2.5625 In. x 12.625 In.; Grade 8; Square Bend |
| 1977-1986 | Chevrolet | K30 | Rear | 5/8 In. x 2.5625 In. x 12.625 In.; Grade 8; Square Bend |
| 1973-1974 | Chevrolet | K30 Pickup | Rear | 5/8 In. x 2.5625 In. x 12.625 In.; Grade 8; Square Bend |
| 1987-1988 | Chevrolet | R30 | Rear | 5/8 In. x 2.5625 In. x 12.625 In.; Grade 8; Square Bend |
| 1989-1991 | Chevrolet | R3500 | Rear | 5/8 In. x 2.5625 In. x 12.625 In.; Grade 8; Square Bend |
| 1987-1988 | Chevrolet | V30 | Rear | 5/8 In. x 2.5625 In. x 12.625 In.; Grade 8; Square Bend |
| 1989-1991 | Chevrolet | V3500 | Rear | 5/8 In. x 2.5625 In. x 12.625 In.; Grade 8; Square Bend |
| 1975-1978 | GMC | C35 | Rear | 5/8 In. x 2.5625 In. x 12.625 In.; Grade 8; Square Bend |
| 1973-1974 | GMC | C35/C3500 Pickup | Rear | 5/8 In. x 2.5625 In. x 12.625 In.; Grade 8; Square Bend |
| 1988 | GMC | C3500 | Rear | 5/8 In. x 2.5625 In. x 12.625 In.; Grade 8; Square Bend |
| 1979-1986 | GMC | C3500 | Rear | 5/8 In. x 2.5625 In. x 12.625 In.; Grade 8; Square Bend |
| 1977-1978 | GMC | K35 | Rear | 5/8 In. x 2.5625 In. x 12.625 In.; Grade 8; Square Bend |
| 1972-1974 | GMC | K35/K3500 Pickup | Rear | 5/8 In. x 2.5625 In. x 12.625 In.; Grade 8; Square Bend |
| 1979-1986 | GMC | K3500 | Rear | 5/8 In. x 2.5625 In. x 12.625 In.; Grade 8; Square Bend |
| 1987-1991 | GMC | R3500 | Rear | 5/8 In. x 2.5625 In. x 12.625 In.; Grade 8; Square Bend |
| 1987-1991 | GMC | V3500 | Rear | 5/8 In. x 2.5625 In. x 12.625 In.; Grade 8; Square Bend |
Please confirm the part number and your vehicle's year, make, model and engine before ordering. Questions? Message us with your VIN and we'll check fitment for you.
Specifications
| Brand | Dorman |
|---|---|
| Part Number | 929-728 |
| UPC | 194883381858 |
| Placement | Rear |
| Material | Steel |
| Color | Semi-Gloss Black |
| Thread Type | Fine |
| Bolt Grade | 8 |
| Thread Length | 5.5 in. |
| Nuts Included | Yes |
| Universal Or Specific Fit | Specific |
| Grade Type | Standard Replacement |
| Inside Length | 12.625 in. |
| Inside Width | 2.563 in. |
| Package Contents | 2 U-Bolts |
| Thread Diameter | 5/8 in |
| Country of Origin | Mexico |
| Warranty | Limited Lifetime |
OE & Interchange Numbers
| 471662 | General Motors (OE) |
|---|---|
| 361-413 | Interchange |