The 24FDU13 bushing is a replacement bushing for some STM tuner secondary movable sheave applications. 

Replacement movable sheave includes bushing & snap ring (Part # 1001004)

Rage 4 Wide spider without spring boss  Made from Forged aluminum. Comes assembled with rollers and buttons kit part# 1001591   Replaces 1001556

STM HD compression spring helix cover to be used with the KSS style springs, works with HXATV , HXATVG2 and HXSM2S helix's.  ONLY works on secondary's with a 1.500" diameter post.    Comes complete with  Qty 1 - 2408 Bushing for 1...

ONLY WORKS IN STM CLUTCHES  Sold in a per arm set. 1 pin and bushing set per arm is needed. Includes: 2 -  1001318 inner bushings for .470 wide weights .098 shoulder bushing 2 -  1001316 outer bushings for .125...

STM Rage 3 Wide Primary Replacement cover, comes with bushing #1810.590 and retaining clip.

Made from forged 7075. Comes assembled complete with rollers and buttons.  Rollers and buttons are replaceable.  We also have a grunt (spider) tool that can be purchased separately part#1001020 Replacement Spider Rebuild Kit...

ONLY WORKS IN STM CLUTCHES  Sold in a per arm set. 1 pin and bushing set per arm is needed. Includes: 2 -  1001318 inner bushings for .470 wide weights .098 shoulder bushing 2 -  1001316 outer bushings for .125...

The 24FDU558 bushing is a replacement bushing for some STM tuner secondary Dual Spring Caps sku: 1001676 applications. 

STM Rage 4 Wide Primary Replacement cover, comes with bushing #1810.590 and retaining clip.

Rage 3 Wide Spread Pin Primary Clutch  NON BEARING DESIGN  Completely redesigned STM Rage 3WSP  Primary clutch features a wider, thicker, more durable spider with our new composite spider roller bushings for long life and quiet...