GMS Upper Chassis Slug Aluminum 1/4” : 1/2”

The GMS Upper Chassis Slug Aluminum 1/4” : 1/2” is a single, one-piece stepped chassis spacer engineered to provide accurate and repeatable upper chassis spacing in Super Late Model suspension systems. Unlike stack-up spacers, this slug combines two thickness zones in one component, helping eliminate tolerance stack-up, flex, and alignment variation.

Precision machined from lightweight, corrosion-resistant aluminum, the stepped design transitions from 1/4 inch to 1/2 inch thickness within the same piece. This allows racers and builders to fine-tune ride height, link geometry, and mounting clearance without the complexity of separate shims. Its rigid one-piece construction ensures consistent performance under load and repetitive setup changes on track.

Ideal for teams focused on precise chassis setup, this upper chassis slug delivers durability, accuracy, and simplicity in high demand racing environments.

Key Features

• One-piece stepped aluminum chassis slug

• Integrated 1/4” to 1/2” thickness transition

• Precision machined for accurate, repeatable spacing

• Lightweight, corrosion-resistant aluminum

• Eliminates spacer stacking and flex

• Designed specifically for Super Late Model chassis tuning