So I have lifted 97, 88, and 96 k1500s. All are on blocks and keys. I was wondering what the difference is without having to get under them between all my 1500s and my 2500. I went to buy a lift and all the ones bought for the 1500s say they won’t work. Is it a difference in keys? Or u bolt width, maybe just u bolt length? Or is it the center pin for the blocks? Just curious, because I have a spare 1500 lift and wondered if it will work on my 99 obs 2500.