Master Cylinder recommendations

I need to replace some hard lines and i thought i would replace the master cylinder with one that meant for front disc/ rear drum brakes unlike my drum/drum.

 

I used a power booster/master cylinder and prop valve from a wrangler. I had to drill mounting holes in the firewall but other tha that it boled right up.

 

Ok, i picked up a MC from a 82 cj with manual brakes and a adjustable proportioning valve. Now for a stupid question which reservoir goes to front disc brakes, the big or little one?

 

Generally IIRC the larger one is for the fronts as more fluid is needed for the larger diameter caliper pistons.

 

Alright, thanks thats just what i needed to know.