EMPI Adjustable IRS Spring Plates — 4-1/4\" Collar, Pair | VW Thing Type 181 1973–1974 (17-2673-0)

Adjustable Spring Plate, IRS Suspension (Thing / Type 181)

The EMPI Adjustable IRS Spring Plates are a high-performance suspension upgrade specifically designed for the 1973-1974 VW Thing (Type 181) and custom off-road applications. Featuring a 4 1/4" collar matched for 24 11/16” torsion bars, these plates allow you to fine-tune your rear ride height by approximately 2" to 3" without the need for the tedious process of re-indexing the torsion bar splines.

Built from heavy-duty steel with a durable painted finish, these plates solve the common issue of "driver's side sag" by allowing independent side-to-side leveling. They are also a staple for Baja Bug and Sand Rail builders who have swapped to the 24 11/16" medium-length bars for improved suspension travel and damping characteristics.

Key Specifications:

• Compatibility: Fits 1973–1974 VW Thing (Type 181) and custom IRS builds using 24 11/16" bars.

   

• Collar Size: 4 1/4" extension.

   

• Adjustment: Single-bolt external adjustment for precise height leveling.

• Finish: Durable gloss black paint for corrosion resistance.

   

• Quantity: Sold as a matched pair (Left and Right).