Strange Pro Series Lightweight Steel Spool

Pro spool -L/W Steel 40 spline Ford 9″ (3.250″ bore case)

 
Ford 9″ 40 Spline Pro Series Spool
Requires 3.250″ bore aftermarket case

Spline Locations Were Changed 06/14
Splines start at the outer edges
Left hand side are 1.875″ deep
Right hand side are 3.125″ deep

Features
• Machined from 4140 forged steel
• Lightened to reduce rotating weight
• Broached 40 spline with 45° pressure angle
• Critical dimensions left oversize prior to heat treatment
• Heat treated for further gains in strength
• Finish machining after heat treat to bring surfaces within specifications
• Accepts 7/16″ & 1/2″ ring gear bolts
• Designed and machined by Strange Engineering
• Forged in the USA

Weighs 7.95 lbs

Lightweight Pro Series Steel Spools Carry A Limited Lifetime Warranty

Related
Spool bearings – D1590
S-Series case – N2206
Pro Iron case – N1906
HD Pro aluminum case – P3203
Ultra case – P3250ST / P3250LT

Pro Race Axle & Spool Package
With solid axles – P2017
With gun-drilled axles – P2015

Complete Installation Kits
For OEM standard pinion support – R5235 / R5235WR
For Daytona & N1917 pinion support – R5236 / R5236WR
For N1922 support & 28 spline pinion – R5237 / R5237WR
For N1922 support & 35 spline pinion – R5238 / R5238WR