Used 2005 Gx470 Towing Question

[sprocket]

I'm looking at picking up a Certified 2005 or 2006 Gx470. I'll be towing a boat that weighs roughly 5,200lbs over flat terrain, roughly 55 miles each way 2 to 3 times a month.

If the vehicle does not include a "tow package", what will I need? When I looked at the options available on a new one, there is only the hitch (plus ball mount, etc) showing. There is no mention of wiring harness, auxiliary tranny cooler, etc.

Were there any differences between the 2005 & 2006 models?

[Lirettek]

I'm sure this is a very late response, but I had similar questions two years ago before I bought my used 2005 GX470. My boat is about 6,500 lbs. I took the chance, I don't go as far or as regular, but the GX470 pulls it just fine at reasonable speeds like 45-60 mph. However, I have brakes on the boat trailer to help. I had the Lexus towing package and wiring added at the dealership. Worth the money. The biggest jump was from 2004 to 2005 to my knowledge. Weight towing jumped from 5000 to 6500 lbs and more HP. Hope this helps...