need help

[5.0 stang]

my 1994 mustang gt

i got a new transmission rebuilt and a shift kit put in it and when i put it to the floor it just like boggs out and then shifts does anyone know wat could be the problem?
i really need to know

johnny

[silverstangboy]

take it back, thats a shift kit installation problem, sounds like you have one gear wearing against the pads of the previous gear during shift.