Measuring Track Extension Track extension is measured over 4 links and can be done on any 4 accessible links, with a tape measure or with calipers. Was this article helpful? Yes No Related Articles Caterpillar – Track Roller How to Measure Excavators – Download Measuring the Sprocket with Callipers Measuring Track Roller with Depth Gauge Measuring the Track Roller with Callipers Measuring the Track Roller with UT