How to identify a TH350 \"K\" case? I've been looking for a TH350 "K" case (also called a HD case) to build a doubler behind (due to general shortage of TH400 203s). I'm not real happy about loosing the strength of my TH400, so I figure if I'm going TH350, I want the HD/"K" case. Problem is, it seems maybe I don't know how to ID the TH350 "K" case. I think K30guy or someone posted this a long time ago, but I can't find it now. I *thought* it had these characteristics. <ul type="square"> [*]A visibly thicker and reinforced case. Hard to ID this without something to compare to beside it... [*]A "K" cast into the top of the main barrel of the case, behind the bell housing. [*]A 6 bolt cast inspection cover under the torque converter, rather than the 4 bolt stamped sheet metal version. [/list] So, am I confusing this with the TH400, or completely clueless. Can someone please give me a clue?