Ford GM Isuzu Jeep T5 transmission reverse idler 1 2 reverse slider
Ford GM Nissan Isuzu Jeep
Reverse idler gear and 1st/2nd/Reverse gear synchronizer sleever/slider
These items take a lot of abuse even from stock applications.
It is recommended to replace these items during the rebuild process especially
when the transmission was having difficulty going into 1st, 2nd or reverse gears.