Trying to find rear lift springs for a 97 Yukon

[Yukon_OBS]

First off I have a 97 Yukon that is lifted with 35s. Previous owner used it for pulling a heavy camper and flattened out the rear springs. So when I did the lift kit I just threw in the rear block. I have 54" rear springs but can't find any rear lift springs that long. I'm trying to remove the block and put some good springs in it. I can find 52" Springs. And some sites were saying they would work. Any thoughts or suggestions would be great

 

[jerryjoe28]

have you try'd calling pro comp direct?