and on another ae86 note. the stock brakes are more than adequate to stop a 2200lb car. all i did to mine is do steel braided lines and dot 5 fluid. just make sure the calipers are in ggod shape. the fronts are cheap to replace but the rears are like 150 a piece. due to being specific to the GT-S.

and as for the t-50 tranny, any corolla thats rear drive from 1980 to 1987 has a t-50 so all you'll need is a bellhousing for your model engine. all the t-50's have the same gear ratio's.

the rear end is the hardest and most exspensive part of the car to fix. now most ae86's have close to or over 200k on them so the rear ends are kinda weak. i spent some money on mine but it was the quickest easiest way to get the car back on the road. i went to the toyota dealer and bought a whole center pumpkin rear end for $1200 it came complete read to put in bran new with a 1 year warrenty. i know you can buy an aftermarket lsd cheaper, but then you have to buy bearings and shims and then find a shop that knows what their doing and pay them to put it all together. also do axle bearings to. if you here a groaning comeing form the rear end and it gets louder the faster you go its more than likely the axle bearings. those are specific to the GT-S too. i have easily spent close to $2000 on my rear end alone.

i have much more to add so i'll get back in a few.