I've have used a 904 727 csr shields the older ones had allen bolts so i made a short tool to usewith a long extention then the newer one had 6 pts bolts so i use 6pt socket with a 3/8 ratchet wrench works pretty good .All my trans i cut the ears off dont need them ..I still like them over a blanket .TCI you will cuss it till you throw it away will not fit a tunnel pry to get if not all most bolts in PIA
don

2009 418" build dan smith built new 9.96 131.82 6.23 108 1.30 60 foot best to date 9/15/09 8in 727 430 dana 2860 lb 3040 lb w driver