Well, the other day i my front u joint snapped on my driveshaft. when it broke my driveshaft spun wildly until i was able to come to a complete stop. well i looked under my car at tire kingdom (where i work) and noticed that the shifter plate had been hit, by the driveshaft, and had a crack going all the way through it, and even one of the bolt that holds it in place broke.

my question is
Should i replace/fix the damage or should i replace the tranny. its a TII tranny on my N/a vert.

my tranny also has worn 3rd gear and 5th gear synchros.
Thanks ahead for the feedback.

Adam