2017-2022 Chevrolet Colorado ZR2 U-Bolt Set for 4"-4.5" Rear Blocks
Complete your rear lift-block installation with a properly sized Trekline Grade 8 U-bolt set. These zinc-coated U-bolts are matched to the listed vehicle configuration and block-height range, but factory options and prior suspension changes can alter the dimensions required.
U-Bolt Specifications
- Bend: Square
- Diameter (D): 9/16"
- Overall Length (L): 13.5"
- Inside Width (W): 2.6"
- Usable Thread (T): 6"
- Block Height: 4"-4.5"
- Placement: Rear
Vehicle Fitment
2017-2022 Chevrolet Colorado ZR2 2WD/4WD applications listed by Trekline
Application Note: ZR2-specific listing. Used by the 4-inch SKC ZR2 block cross-reference; 2023 applications require measurement.
What Is Included
- 4 Grade 8 zinc-coated U-bolts
- 8 washers
- 8 nuts
Fitment Notes
- Measure before ordering. Verify bend style, bolt diameter, inside width, overall length and usable thread against the actual axle and leaf-spring pack.
- If multiple blocks are stacked, use the total block height when checking required U-bolt length.
- U-bolts may be shortened only when adequate thread remains for proper washer, nut and torque engagement.
Brand: Trekline
SKU: 800250088
