Description
Rotary FJ2428 / FJ2440 Solid Rubber Stack Blocks – Universal Height Adapters for Auto Lifts and Rolling Jacks
These solid rubber height adapter stack blocks are designed to increase lift clearance and prevent damage to step bars, rocker panels, and factory undercoating on vehicles. Sold as a set of 2, they are compatible with low rise lifts, inground lifts, and rolling jacks. Their stackable design allows technicians to combine multiple blocks for additional height as needed. Built from durable solid rubber, these blocks deliver long-lasting performance in professional shop environments.
Product Information
- Brand: Rotary (OEM and aftermarket compatible)
- Part Numbers: FJ2428 / FJ2440
- SKU: 2X 3inch Stack Block-1
- Component: Rubber Height Adapter / Stack Block
- Specifications: 4-3/4″ wide x 6″ long x 3″ tall, solid rubber, set of 2
- Listed Application: Low rise lifts, inground lifts, rolling jacks
Replacement / Cross-Reference Numbers
- FJ2428
- FJ2440
Fitment & Ordering Notes
These stack blocks are a universal accessory suitable for use on a wide range of auto lifts and rolling jacks. There are no specific vehicle or lift model restrictions. Before ordering, verify that the block dimensions (4-3/4″ wide x 6″ long x 3″ tall) are appropriate for your lift application. Blocks can be stacked with additional units to achieve greater height when servicing vehicles with low ground clearance, step bars, or sensitive rocker panels.







