need help 96 cobra input shaft size

[shelbycobra]

my 96 cobra clutch is toast i upgraded years ago to a 11in flywheel but a fords part guy told me my input shaft is 10 spline and diameter is 1.0625 but when i got to centerforce's website its saying 1-1/16 or 1-1/8 can some one please help me i actually thought the 99 cobra 11inch kit would be the one i needed but summit guy wasnt for sure