I have a WC T5 that I am rebuilding. I got a borg warner rebuild kit that came with 3 input shaft shims they are all I smidge to small to take up the end play in my shaft. So what I did was gringed one down to .006 and doubled it up with the other one which is .013 thick to make .020. Is this O.K. that I did this. I know you can double up the shims on the main shaft or output shaft but I have been told that you cant do that on the input shaft but I dont see a difference. Can someone please give me some insight on this before I drop my motor and tranny back in the car in about another hour. I dont want to have to go back thru all this again if its not going to work right the way I got it.