ra23/28 and 40's had 4:1:1 diff;s.. not sure on the ra60's but you can put ra40 diff into ra60 no prob (non irs)
the only thing i have heard about with the celica diffs is the selector shaft snapping i knwo from experience i have broken 2 ehe but yeah the 22re's are very torquey engines and brake traction very easy