Wilwood Iron ProSpindles (2in Drop) - 1988-1998 Chevy/GMC C1500

Genuine Wilwood ProSpindles (PN 831-15933) for 1988-1998 Chevy/GMC C1500 trucks and SUVs — Wilwood's own engineering pedigree brought to your OBS truck's front end, dropping ride height 2" while giving you the mounting foundation for Wilwood's D52 caliper front brake upgrades and our 14"/16" big brake kit lineup.

Built from cast steel with the precision machining tolerances Wilwood is known for across their entire brake and suspension lineup — not a cheap generic cast spindle. Wilwood's reputation for quality control means consistent, repeatable manufacturing tolerances rather than the variance you sometimes see in aftermarket cast spindles from lesser brands. These spindles use your factory ball joints and tie rod ends, keeping installation in bolt-on territory for any competent front-end shop.

Whether or not a big brake kit is in your immediate plans, these spindles are a stronger, more precisely engineered 2" drop replacement for a factory spindle that's been in service since the Clinton administration — purpose-built to accept Wilwood's caliper mounting and rotor sizing without any adapter brackets or compromise fitment.

Important: these spindles do NOT come with spindle nuts, and the stock C1500 nuts/washers will not work with them. You'll need our separate Wilwood Iron ProSpindle Hardware Kit (castle nuts, washers, and cotter pins) to complete the install.

Fits: Chevrolet/GMC C1500 1988-1998 (2WD Pickup, Blazer, Suburban).

Wilwood Part #: 831-15933

Ready to bolt directly to our D52 caliper upgrade kit or any of our 14" and 16" big brake kits built around this spindle.