Art Carr. What trans u putting it in? Reverse pattern w/compression braking limits your options..th400 is a art carr only item. TCI does the th350 and 700r4 but not the th400 last time I checked. I believe Stephen found a "new guy" making a good one for the 700r4, I believe he bought it and put it in wally.....Might want to shoot him a email. When I did my Art Carr I went through sending it back twice before it finally worked correctly. BTW labor was on my dime! They always shipped for free and included new gaskets every time but it took weeks before it ran correctly. Good Luck!