Rear Disc conversion questions..., ??? Options

[Kwanza]

When doing the swap, is it necessary to swap over all of the brake lines from the GT to the ST or can I just use the exsisting lines, valves, etc, or Do I need to swap over everything? I am asking this because some disc and drum brake set-ups typically use different fluid pressures and stuff, so I was wondering if there is any difference between the celica drums lines/valves, and the disc lines/valves.


Thanks,

and yes, I did read the "how to" but that doesn't answer my question...

[1858]

The proportioning valve controls the rear brake pressure. Yes, the GT uses a higher rear brake pressure than the ST, but I dunno if the GT P-valve will work well on the ST unless you change the front brakes to the GT too. GT front brakes are actually bigger than the ST. My guess is most people would just leave the ST P-valve in......