I remember Screenz was having fits with starters after a T-5 swap this little tidbit may be the answer: http://www.moderndriveline.com/Tech...er_for_Ford_Small_Block_T5-TKO_conversion.htm
Mine was a c4 swap Jeff but I put a shim in it from Help and it cured it for a while but it's making racket again I'm thinking hard about swaping bellhousings or putting a AOD I have both just cant make my mind up
i have a tremec tko similar to t-5 , check the engagement of the starter drive to the flywheel teeth. i had to go to a big block starter to get the teeth to engage the flywheel correctly, i used after market bellhousing
The starters for a T5 and auto are different . One has a longer snout that the other one . I bought one of those little starters that Jeff told me about for the engine I am working on for a customer and it works great ! Jim
I found a very valuable piece of info here: http://www.moderndriveline.com/Docs/Ford depth Rev 06_30_2010.pdf this should clear up the mystery with Ford starter problems for both C4 & AOD and T-5 swaps.