Brand: Tilton Engineering
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This is a set of 3 sintered metallic discs for the Tilton OT-II 3-Disc 7 1/4" Racing Clutch. The 1 1/4" x 29 spline size is typically found in NASCAR ("Car of Tomorrow") transmissions. The 8-rivet hub attachment is stronger than the more common 6-rivet attachment to handle higher torque levels. Back-to-back hubs require flywheel clearance.
Tilton recommends replacement when the clutch disc friction material wears to 0.094". New discs measure 0.104" thick.
Note: Not for street use. These discs are not designed to work with any OEM clutch.