Series 30 Diff Shafts
for 35 Spline Gearworks/Spool

The best Ultra4 IFS Housing deserves the best IFS axle shafts. Our Series 30 CV 35 Splined 300M Billet IFS Differential Shafts deliver on that need, building on the best IFS technology available today. Sold as an axle shaft pair, complete with bearings, bearing retainer & collar, and seals.

These Series 30 IFS Differential Shafts are designed specifically for a Gearworks locker -OR- spool. Do not use these shafts for other locker types

Series 30

These axle shafts are designed to accommodate the race proven GKN Series 30 CV design. These are massive CV joints, with ample misalignment for sharp steering and long suspension travel.

Large Bearings

Axle shafts come pre-installed with massive 2.953" diameter x .630" width genuine Timken bearings. They are retained with laser cut backing plates and a chromoly heat treated bearing collar.

Billet Construction

Machined from military grade 300M bar, our IFS differential shafts meet our proven 100% billet quality. With multiple post-heat treat CNC operations, they also carry the tightest tolerances in the market.

Aerospace Quality

Ultra4 racers require zero compromise in quality. Our IFS 300M differential shafts are heat treated to the strictest Aerospace standards, complete with double tempering & cryogenic treatment.