I have a 4WD 2007 Tacoma V6 manual with 6 speeds. This model has a notorious reoccurring problem with its 3rd gear, which is due to the synchro going bad on that gear, as per many online testimonials. The problem manifests itself on my truck by grinding when I am shifting into the 3rd gear, unless I do it super slowly keeping the clutch pressed all the way.
I would like to fix it and replace the synchro but would like to first gauge the level of complexity involved. I am a fairly competent DIY mechanic who has done many different types of repairs without failures that required professional assistance. Is this repair something that involves a special tool that only specialty shops have?