toyota corolla 84 sr5

i was woundering how much would a rear disc conversion would be on an 84 corolla?

go to a junkyard and measure the rearaxle that has disc on and measure it and compare to your drum axle i don't know what year they first put rear disc on or how the emergency brake is hooked up.

I believe that the first year wasthe 84 GTS...which also came with fuel injection and LSD...so if you can find one of those i think it would be pretty easy!