Getting the stance right, front to rear.

The setup changed after the first order

The November 2025 SuspensionMAXX order included a front leveling kit advertised at 2.0–2.5 inches and a 1.5-inch rear-block kit with shock extensions. That first order is not the final rear setup. January records show a replacement purchase for the SMX-159720 2-inch rear-block kit and a refund for the returned SMX-159715 1.5-inch kit.

Later in January, the owner described the installed result as a two-inch lift at both ends. Taken together, those records explain why the earlier receipt and the owner’s shorthand appeared to disagree. The build sheet now follows the replacement history rather than leaving a returned part listed as current hardware.

Height and tire size do different jobs

The suspension changes the truck’s stance, while the larger tires also change its overall height and proportions. Neither the front kit’s adjustment range nor a rear kit’s two-inch label is a set of measured before-and-after wheel-arch heights. The precise front setting and finished measurements have not been documented here.

This is why a side-profile photograph is useful for appearance, but insufficient as a clearance guide. The lift and tires need to be considered together, with the actual wheels and suspension movement included.

What changed from behind the wheel

The clearest recorded driving feedback from this stage concerns the larger Toyo tires. The owner felt that the truck had lost some of its earlier acceleration urgency and asked for calibration changes. There is no separate recorded ride-quality verdict for the leveling kit, and the tires and suspension changed close enough together that the effects should not be invented or casually assigned to one part.

A lifted stance also does not establish a higher payload or towing rating. Those capabilities remain tied to the vehicle’s actual ratings and configuration.

The details another Denali owner would need

Wheel width and offset, alignment results, final front and rear heights, and clearance through steering and suspension movement are still missing. The current record does not establish whether trimming or other fitment work was needed. The January replacement receipt also includes a bracket, but it does not establish the complete installed shock-extension arrangement.

Those are specific gaps in this truck’s fitment story. Until they are documented, the photos and part numbers explain the build’s progression without promising a repeatable, rub-free installation on another Denali.

Use the final configuration

For this build, the useful summary is a SuspensionMAXX front leveling kit, a documented 2-inch replacement rear kit and an owner-reported two-inch lift. The returned 1.5-inch kit belongs in the decision history. Compatibility still needs to match the exact Denali suspension and model year; a similarly named Sierra kit is not enough to establish fitment.