I just today got the slushbox out of my 89' vert and got the t5 in. Wow it seems like i have so much more power now. Along with the t5 i installed a spec3 clutch, bbk firewall adjuster, and BBK quadrant. The problem I am having is when i shift to 3rd of 4th gear it grinds before going into gear. The shift is an aftermarket that came with the tranny, not sure of the brand. The is no stamping or markings on the shifter assembly, so probably something cheap. The shift has had the adjuster bolts pulled out of both front and back for some strange reason. Is my problem in a clutch adjustment, the shift, or an actual internal tranny problem. As the trany is used, but bought out of a running car. Any input would be awsome. think you all for your comments, and suggestions.