brake questions

my front brakes seemed a little squishy lately so i took them off to check them. The pads are still like brand new and i have over 1200 miles on them... is this normal? The rear brakes barely work which leads me to my next question, has anyone found out if the highlifter disk brake works for the rear of our quads? it only says the rubicon but i think theyre the same. Oh and by the way when installing handguards, on the new pivot bolts. Coat them with waterproof grease. My brake levers now feel like the ball bearing levers the sell for sport quads