I had just bought a pair myself, they went in fairly easily and work really well. Great product, great idea, and I won't have to replace them again. The dealer wanted $30. for the assembly on each side.
I agree, very good product. I just put mine in a couple of months ago after
going about five years with one of them broken. It could still latch but
if opened it didn't hold the window in place. This is probably the first item
to break on the 1-Gen Tundras, especially if you have children .