transmission grinds in 3rd and 4th gears
Why can my manual transmission only shift into 1st, 2nd, and 5th? on 2004 Chevrolet Cavalier
AGREE WITH SOLO OR SEEK DIAG FREE FROM AAMCO
The linkage may need to be checked/adjusted but i would lean toward bad syncronizers or extremely worn/loose shift fork these are internal parts to the transmission.