Hey, I had my transmission out my 93 Civic Si swapped for an s40 because my synchros were bad in the s20, But now Its extremely hard to put into 1st or 2nd, pretty much you have to force it but it doesn't grind. Every other gear works amazing though

I have tired a fluid flush with Honda MTF and nothing, My shift linkage bushings look good

I am gonna try buying D series 96-00 shift linkage and see if that helps, What Do you guys think?