Lift Blocks
The simplest rear lift there is: a block between the spring pack and the axle. No change to spring rate, no change to ride quality.
Two limits are worth knowing. Blocks work only on a leaf-sprung rear, and block height increases axle wrap under power, which is why manufacturers cap the height rather than selling taller ones.
Fit new U-bolts cut for the new block. The old ones are the wrong length and already stretched.
What a block needs and what it competes with
More under Lifting
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Tell us the truck and what you are trying to end up with. Fresno, California, Monday to Friday.
1-888-230-1288- MaxTrac 2003-2008 RAM 3500 2WD DUALLY | 2013+ RAM 3500 4WD ROUND U-BOLTS (2.5"-5.5" BLOCKS) (16.5" X 4.125" X 9/16")$95.74Ships within 48 hoursMaxTrac 2007-2024 SILVERADO/SIERRA 1500 2WD/4WD SQUARE U-BOLTS (15.5" X 2.625" X 9/16") (6"-7" BLOCKS)$76.29Ships within 48 hoursMaxTrac 2011-2025 SILVERADO/SIERRA 1500HD/2500HD/3500HD 1.25" LIFT BLOCKS$104.00Ships within 48 hoursMaxTrac 2011-2025 SILVERADO/SIERRA 1500HD/2500HD/3500HD SQUARE U-BOLTS (13" X 3.26" X 3/4") (FITS 1"-1.5" BLOCKS)$156.00Ships within 48 hours
SAVE 9%MaxTrac 2017-2025 F-250/F-350 4WD SEMI ROUND U-BOLTS (18.5" X 3.125" X 5/8") (6" BLOCKS)$111.99Ships within 48 hours
SAVE 9%MaxTrac 2017-2025 F-250/F-350/DUALLY 4WD SEMI ROUND U-BOLTS (21.5" X 3.125" X 5/8") (8" BLOCKS)$109.13Ships within 48 hoursTo TopMaxTrac 2021-2025 F-150 2WD SEMI ROUND U-BOLTS (11.5" X 3.125" X 9/16") (FITS 2"-3" BLOCKS)$76.29Ships within 48 hoursMaxTrac 2021-2025 F-150 2WD SEMI ROUND U-BOLTS (14.5" X 3.125" X 9/16") (FITS 4"-5" BLOCKS)$76.29Ships within 48 hoursMaxTrac 2025-2025 GM 1500 2WD/4WD ROUND U-BOLTS (11.00" X 2.625" X 9/16")$60.05Ships within 48 hoursMy Wish ListLast Added ItemsYou have no items in your wish list.
