My first post so forgive me. I have been reading posts for several years and thought I would start getting involved. I have made several attempts to improve the ride and steering and have found tire pressure, DSS, t-steering and tb fix to give good results. I did the t-steering and tb fix at the same time so I don't know which helped the most. My tb is a little loose again but my steering is still very good. I installed a PSC 3 turn box, 841M, nothing was wrong with my 4 turn just wanted more improvement. Blew the pitman seal with DSS in 20 miles and called PSC. They said the 84 casting is weaker and they were waiting for 64 castings. Got the new Delphi 64 casting in and before attaching DSS bearing I noticed some play in pitman shaft while turning wheel back and forth. I even noticed play when turning wheel without the engine running. I was wondering if this is OK and will be calling PSC. I would like to put the original box on and see the play for comparison but that sounds like work. After installing the DSS the play is gone. I am going on a trip and am now worried about blowing another seal. I guess along with a spare lift pump I will now be carrying a spare PS gear and a full blown tool set. Realize the play is exagerated since the DSS nut extends out quite a bit from the pitman shaft so it might be normal. No play in any of the boxes so I can't comment on wander improvement. 3 turn seems easier to drive though. I don't see how anyone can afford to drive one of these trucks if they aren't mechanically inclined. I only have 20k miles on truck and just put in a new $70 lift pump. Cummins in Minneapolis said there were over 400 available in Chicago warehouse. I bought two. Maybe I'll get two more if I decide to keep this truck. Wet carpet from door seal leak almost drove me over the edge. Poor design that I will fix with a piece of self stick weather seal to divert water away from internal pinch weld seal at back of rear door. Towed my 5000 lb. 5th wheel with my dad's 6. 0 2wd Chevy. Loved the tight steering and quiet ride. Missed the power, fuel economy and the exhaust brake on the Dodge. Nice towing machine! I guess I'll keep her until the next break down causes my break down. :-laf I'm seriously thinking of signing back up again with the AAA RV plan that I needed with my previous tow vehicle. I bought new so I wouldn't need it. Next fix will be adding grease fitting to front wheel bearings if I can find the post.