Hard to shift into 6th gear
Probable cause(s)
Worn or incorrect MTF.
6th synchro ring defective.
5th/6th synchro sleeve and hub defective.
6th gear defective.
Change lever assembly defective.
Diagnostic procedure
Check and/or replace the MTF.
Check the 6th synchro ring.
Check the 5th/6th synchro sleeve and hub.
Check 6th gear.
Check the change lever assembly.