Today on our 2012 GMC Terrain we'll be doing a test fit on the Glacier Square-Link snow tire chains, part number PWPLC1142, and that's tire size 23560R17. These Glacier chains feature a ladder pattern, so they're going to be very effective during starts and stops. The square links are designed to give you the bite you need to get going. They're intended for on-road use only. They're SAE class-S… see more >