I just recently fixed my steering wheel slop. First I was convinced that it was my steering shaft. I based this on my having had a shop check it for me. They indicated that it was my lower steering shaft and not my rag joint. After removing the steering shaft, it was apparent that the shaft was OK. I had a salvage steering shaft, and noted that the upper collapsible sections varied by 1/2" (11.5" vs 12"") and concluded that the lower slide joint was just there to correct for this variance. I then roll pinned the lower steering shaft of the salvaged steering shaft with three 90 degree alternating 3/32" roll pins spaced ~1" to eliminate the steering shaft as a suspect. I roll pinned the salvaged shaft based on the original's mount position via indelible marker along the rubber seal. thus insuring the correct overall steering shaft length. Note: This upper steering shaft sectional variance explains the problems mentioned in other threads concerning OEM steering shaft installs interference with aftermarket LTs...i.e oem steering shaft angles may vary. I then started searching SVT threads and found this thread concerning the firewall bearing seal for the steering shaft. I found my bearing was shifted and sheared/skewed...sorry no pics.. Thanks Taz: http://www.svtperformance.com/forum...e-play-in-steering-Steering-shaft-suggestions I replaced the seal with a junk yard piece. It also had a backed out bearing ring. I pounded/pressed it into place. I fixed it as outlined here: Thanks White Bear Ford: http://www.svtperformance.com/forum...mn-boot-seal&p=15103580&posted=1#post15103580 Because I had roll pinned my lower steering shaft, I had to loosen the steering rack and slide it forward in order to install the steering shaft, i.e. in order to create more space. While doing this, I found the rack bolts loose or easy to loosen. The diver side side of the rack was notably loose; although I had checked them several times before and had a shop look at it as well. Thanks snakeraper11b: http://www.svtperformance.com/forums/showthread.php?1028693-Steering-wheel-not-centered Roundup: In the end, I ended up doing all-of-the-above with no documentation or pics. I got so tired, and needed to get Kelly on the road. I think my steering slop was all-of-the-above. I apologize for my lack of documentation. I just thought it important to share. Thanks all.