Rear brake pads what position do the pins go?

Replacing brakes isn't too hard to do. First, here is a link that explains in general how it's done. You can use these as a guide:

https://www.2carpros.com/articles/how-to-replace-front-brake-pads-and-rotors-fwd

Here are the directions specific to your vehicle. The attached pics correlate with the directions.

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1999 Toyota Camry CE Sedan L4-2164cc 2.2L DOHC (5S-FE) MFI
Front
Vehicle Brakes and Traction Control Disc Brake System Brake Pad Service and Repair Procedures Front
FRONT
REPLACEMENT
1. REMOVE FRONT WHEEL
Remove the wheel and temporarily fasten the disc with hub nuts.

pic 1

2. INSPECT PAD LINING THICKNESS
Check the pad thickness through the caliper inspection hole and replace the pads if they are not within the specification.
Minimum thickness: 1.0 mm (0.039 inch)

pic 2

3. LIFT UP CALIPER
a. Remove the bolt and flexible hose from the bracket.
b. 5S-FE engine:
Hold the sliding pin on the bottom and loosen the installation bolt, and remove the installation bolt.
c. 1MZ-FE engine:
Remove the bottom side installation bolt.
d. Lift up the caliper and suspend it securely.

HINT: Do not disconnect the flexible hose from the caliper.

4. 5S-FE engine:
REMOVE 2 ANTI-SQUEAL SPRINGS
5. REMOVE 2 BRAKE PADS
6. REMOVE 4 ANTI-SQUEAL SHIMS
7. 1MZ-FE engine:
REMOVE PAD WEAR INDICATOR PLATE
8. 1MZ-FE engine:
REMOVE 2 PAD SUPPORT PLATES
9. 5S-FE engine:
REMOVE 4 PAD SUPPORT PLATES

NOTICE: The anti-squeal springs and support plates can be used again provided that they have sufficient rebound, no deformation, cracks or wear, and have had all rust, dirt and foreign particles cleaned off.

10. CHECK DISC THICKNESS AND RUNOUT.
11. INSTALL 2 OR 4 PAD SUPPORT PLATES
12. INSTALL NEW PADS

NOTICE: When replacing worn pads, the anti-squeal shims and wear indicator plates must be replaced together with the pads.

pic 3

a. 1MZ-FE engine:
Install a pad wear indicator plate on the inner pad.
b. Apply disc brake grease to both sides of the inner anti-squeal shims.
c. Install the 2 anti-squeal shims on each pad.
d. Install inner pad with the pad wear indicator plate facing upward.
e. Install inner pad.
f. Install outer pad.

NOTICE: There should be no oil or grease adhering to the friction surfaces of the pads or the disc.

g. 5S-FE engine:
Install the 2 anti-squeal springs.

pic 4

13. INSTALL CALIPER
a. Draw out a small amount of brake fluid from the reservoir.
b. Press in the piston with a hammer handle or similar implement.

HINT: If the piston is difficult to push in, loosen the bleeder plug and push in the piston while letting some brake fluid escape.

c. Install the caliper.
d. 5S-FE engine:
Hold the sliding pin and torque the installation bolt.
e. 1MZ-FE engine:
Install the installation bolt.
Torque: 34 Nm (350 kgf-cm, 25 ft. lbs.)
f. Install the flexible hose and bolt to the bracket.
Torque: 29 Nm (300 kgf-cm, 21 ft. lbs.)
14. INSTALL FRONT WHEEL
Torque: 103 Nm (1,050 kgf-cm, 76 ft. lbs.)
15. DEPRESS BRAKE PEDAL SEVERAL TIMES
16. CHECK THAT FLUID LEVEL IS AT MAX LINE

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I hope this helps. Let me know if you have other questions.

Take care and God Bless,

Joe

Hello, I'm Danny.

You will need to be sure the slider pins remain in the same position. Sometimes due to vehicle application they can be different sizes or length top and bottom on the same vehicle. Here is a tutorial showing how to replace the rear brake pads and rotors:

https://www.2carpros.com/articles/how-to-replace-rear-brake-pads-and-rotors

Here is a YouTube video from our site showing how to compress the rear caliper piston:

https://youtu.be/j8YwfSKEzZo

I've attached picture steps below showing how to replace the rear brake pads and rotors on your car. Hope this helps and thanks for using 2CarPros.