SPC Performance 10598 Hd Support Plate - 3 6

The SPC Performance 10598 Heavy-Duty Wedge Support Plate is engineered to protect caster shims and wedges from concentrated pressure caused by "Z" blocks and other axle spacers commonly found on heavy-duty commercial trucks. By distributing the clamping load evenly across a wider surface area, this plate prevents the crushing or cracking of alignment wedges — a frequent problem in heavy truck suspension systems.

Key Features:

• Designed for use with 3" wide axle spacers — compatible with "Z" blocks and spacers used by Hendrickson, Freightliner, Kenworth, Mack, Hollis, Sterling, Ford, and others
• 1/8" thick steel construction spreads point loads from axle spacers across the full shim surface
• Allows use of the caster shim of your choice to fine-tune alignment after installing the support plate
• Can be used to adjust and equalize ride height from side to side
• Sold as a pack of 6 plates — enough for a complete axle service
• Part of SPC's comprehensive heavy-duty alignment product line

The SPC 10598 HD Support Plate is the professional solution for any heavy truck alignment application where axle spacers are in use. Pair it with SPC alignment shims and caster wedges for a complete, durable alignment correction setup. Also available in 3.5" width (SPC #10698) and 4" width (SPC #10798) for other axle spacer sizes.