GM-47960-10 Digital Angle Gauge Adapter is a flat, machined tool with two holes and one adjustable peg. It is used in conjunction with a digital angle gauge or the current GM-47960 Caster Angle Gauge to measure the rear caster on the vehicle. GM-47960-10 currently has pegs that are too long and too small OD to fit into the gauge holes of the rear knuckle. GM-47960-15 is a set of two pins that will replace the current pins on the plate of GM-47960-10, allowing it to be mounted onto the rear knuckle and providing a mounting surface for the caster angle gauge.

GM-47960 features a remote display that allows the angle to be read during alignment, reading, and service. Both GM-47960-10 and GM-47960-15 are used with the GM-47960 Caster Angle Gauge, which was initially designed for the Saturn Sky and Pontiac Solstice. GM-47960-10 is currently at Corvette dealers, and using GM-47960-15 allows the rear caster to be measured on the new Corvette.