Anyone using these? What size did you end up buying? I did some googling but had mixed results, I'd like to pick some up on the way home from work if someone knows the size.

Here's the list from Summit...
http://m.summitracing.com/search/part-ty...=T-bolt%20clamp

Kinda pricey. What's the purpose?
As for size, don't they compare to the stock ones, or hose size?

Much better clamping force w/o the failures that can occur with worm gear clamps.

I believe hoses are 1.5" but fitment depends on brand of clamp. I'm just gonna measure the hose where it's clamped and try a couple from Summit.

The only failure I ever had with hose clamps was when I over tightened them.
That being said, you can't out a price on peace of mind.
They sure look heavy duty.

Those look interesting, guess you have to be precise on sizing.
Looks like a small clamp window.

I like these kind of clamps, definitely give you more peace of mind.

I also use fuel injection clamps when I use sections of rubber fuel line, way better design than worm gear clamps.

I measured my radiator hoses tonite on my Duster, the upper measured 1.81" and the lower was about 2.15.