Thanks for this info. I’ve been trying to track down a similar issue after placing the intermediate shaft, column bearing, steering box, idler, pitman and tie rod ends I still had this slop. I’ll try the lower shaft as well. During my research I came across another part number for this lower shaft (25958108). It appears this part number is for the 2500HD/3500 trucks. So for reference : 25958109 is for all 1/2 ton trucks and suvs and 25958108 is for all 2500HD/3500 trucks or any 1/2 ton with a body lift. It’s a bit longer to take into account the factory body lift on these models. This applies to gmt-800 only. These part numbers might fit other years and models
I mention this because of my situation. I have a 2500 Yukon xl with a 1.5” body lift up front. So I ordered the longer one (25958108). The upper or intermediate shaft is the same per number for all models in this series.
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