The Wilwood TC6R rear kit replaces the factory rear disc brakes on heavy trucks and SUVs running larger than stock wheels, pairing a forged six-piston TC6 radial-mount caliper with a 16.00 in by 1.38 in SRP drilled and slotted iron rotor. Caliper bores measure 1.75 in, 1.38 in, and 1.38 in for 5.40 sq in of piston area, and BP-10 compound pads give 13 sq in of pad area. Piston area, rotor size, and pad compound are matched to the OE master cylinder output, ABS function, and vehicle brake bias, so the kit adds stopping control for big wheel and tire packages without upsetting the factory hydraulic balance. The OE parking brake assembly is retained through the included drum-in-hat. This kit fits axles with a 4.84 in center register only, and wheel interior clearance should be checked against the diagram in the installation instructions before purchase.
Specifications
| Type | TC6R big brake truck rear brake kit |
| Position | Rear |
| Caliper | TC6 forged six-piston radial mount, stainless pistons |
| Caliper Bores | 1.75 in / 1.38 in / 1.38 in (5.40 sq in piston area) |
| Rotor | 16.00 in x 1.38 in SRP drilled and slotted iron, 72 vane, black electro coat |
| Pads | BP-10 compound, 13 sq in |
| Axle Center Register | 4.84 in (fits this register only) |
| Parking Brake | OE parking brake retained; drum-in-hat included, cables and adapters not supplied |
| Parking Brake Hat | 170-14029 |
| Finish | Red powder coat calipers |
| Quantity | 1 kit (rear axle) |
| Part Number | 140-9406-DR |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2002-2004 | Chevrolet | Avalanche 2500 | Base |
| 2005-2006 | Chevrolet | Avalanche 2500 | LS |
| 2005-2006 | Chevrolet | Avalanche 2500 | LT |
| 1999-2004 | Chevrolet | Silverado 2500 | Base |
| 1999-2004 | Chevrolet | Silverado 2500 | LS |
| 1999-2004 | Chevrolet | Silverado 2500 | LT |
| 2004 | Chevrolet | Silverado 2500 | WT |
| 2001-2005 | Chevrolet | Silverado 2500 HD | Base |
| 2001-2006 | Chevrolet | Silverado 2500 HD | LS |
| 2001-2010 | Chevrolet | Silverado 2500 HD | LT |
| 2007-2010 | Chevrolet | Silverado 2500 HD | LTZ |
| 2003-2010 | Chevrolet | Silverado 2500 HD | WT |
| 2001 | Chevrolet | Suburban 2500 | Base |
| 2001-2013 | Chevrolet | Suburban 2500 | LS |
| 2001-2013 | Chevrolet | Suburban 2500 | LT |
| 2007 | Chevrolet | Suburban 2500 | LTZ |
| 2002-2004 | GMC | Sierra 2500 | Base |
| 1999-2002 | GMC | Sierra 2500 | SL |
| 1999-2004 | GMC | Sierra 2500 | SLE |
| 1999-2004 | GMC | Sierra 2500 | SLT |
| 2003-2004 | GMC | Sierra 2500 | WT |
| 2002-2005 | GMC | Sierra 2500 HD | Base |
| 2001-2002,2006 | GMC | Sierra 2500 HD | SL |
| 2001-2010 | GMC | Sierra 2500 HD | SLE |
| 2001-2010 | GMC | Sierra 2500 HD | SLT |
| 2003-2010 | GMC | Sierra 2500 HD | WT |
| 2001-2013 | GMC | Yukon XL 2500 | SLE |
| 2001-2013 | GMC | Yukon XL 2500 | SLT |
Shipping
- In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
- Standard, expedited, and overnight options at checkout.
- Oversized items ship by freight and take longer.
- Backordered items ship as soon as stock lands — contact us for lead times.
- International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.
Returns
- 30-day returns on new, uninstalled items in original packaging with all hardware.
- Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
- Installed or used parts can’t be returned — confirm fitment before you install.
- Special orders and custom items are final sale.
- Email us for return authorization before shipping anything back.
Full details: Shipping Policy · Refund Policy
