Casting Study: Transmission Selector Tube – Ford

Major Selection Criteria: Complex Shape, Integration of Multiple Functions, Mechanical Properties
Alloy: ZA-8 (ZL8, ZL0810, ZnAI8Cu1, alloy 8, ZA8)
Application Field: Automotive
Application Size: 1 in. dia. x 11 in.
Surface Finish: As-Cast
Casting Technique: Pressure Die Casting
Source: Diemakers, Inc., Monroe City, MO

transmi2_photo2_caseID126The original selector tube was designed as a magnesium-steel assembly. It was redesigned as a one-piece ZA-8 alloy die casting. The ZA-8 casting replaced steel without loss of torque strength.

Net shape casting produces a complex, multifunctional component. The one-piece design incorporates the park-reverse-neutral-drive-low arm for gear selection and the parking brake cancel cam. These two functions were previously added as attachments. The cost saving is estimated at $1.50 per tube.