Two Brake rotor replacement questions.
 

Just replaced pads and rotors on the front of my 1991 300te 4matic, quite an easy job I must say. Here are my two questions:
1. Regarding the floating calipers, how much float is permissible and is there a danger of them being setup incorrectly.
2. Regarding brake pads, how come when I buy a box of four I only get two replacement bolts? Is it because you only replace the bottom one and swing the caliper around the top one?
Merry Christmas,
J.

Yes, that's the reason.

As for the float, that comes from the fact that the pistons retract a slight amount due to the rubber seal in the piston bore.

Dont't forget to use brake grease on the pins/bolts and spray the rubber bits with silicone. parts places have small packets of the proper grease to use on the sliding mechanisms.