Does the 2006 Lexus GX470 have a timing belt or chain?

The 2006 Lexus GX470 comes equipped with a timing belt rather than a timing chain. There is not much difference between the belt and the chain besides the material, location and the maintenance required for them. The belt is located outside of the engine, is exposed to wear and tear and needs to be replaced every so often whereas the chain is on the inside and isn't exposed and should last for the life of the vehicle. The belt for the GX470 should be replaced every 90,000 miles or every 108 months, whichever comes first. The cost of a new belt for the vehicle is anywhere from $100 to $300 depending on where You get it from. The cost to have it replaced is between $430 and $540 in labor costs.