Here's what Energy Suspension says about their dust boots

From what I remember, they were like $6 compared to like $40 for OEM style. I cheaped out. Then my wife bought 2 pairs by mistake so I could make a mistake or 2. I put them on the dash of my truck with the windows up, it got to almost 190 inside. First boot ripped.
I put #2 in a pan of water on my BBQ grill. Got them nice and hot and they went right on.
I like the look of this style boot too.
I got them for my next rebuild. I plan on taking them to work and putting them in our welding rod oven to heat them up.
BTW... My Dakota doesn't have boots, apparently Chrysler figures they are obsolete.