Check the backlash between the starter drive and the ring gear after installation. If it's too tight, use shims.
Do not install the shims. Your starter should work fine.
Disconnect battery. From underneath, disconnect the electrical wires from the starter solenoid. Remove starter bolts and the starter. Note the location of the spacer shims. Installation is the reverse of removal and make sure you replace the spacer shims so you wont have any screeching noise when starting. If you need more details, include the year and engine size of your camaro.
Remove the wires, unbolt it. Your starter is conected by two bolts. which secure the starter to the transmission. directly to the left (passenger side) of were your transmission meets your engine. once bolts are removed, your starter should come right off, keep track of starter shims (starter spacers ) if they are necessary for your model. keep in mind not all cars require shims.
between the starter and what it is bolted to
If it has shims now and you buy an OEM replacement starter, then use the shims. If it does not have shims then you will not need them. Replace the starter with an exactly duplicate, installed exactly as the original. If in doubt measure the distance from the mounting plate face to the end of the drive gear shaft and make sure that distance in the same on the replacement starter.
1st thought is you need shims if the flywheel is hitting the starter. What is the year and model of the vehicle?
disconnect neg battery cable. from underneath the vehicle,disconnect the solenoid wire and battery cable from the terminals on the starter solenoid. remove the 2 starter motor bolts and remove the starter note the location of of spacer shims if any are equiped. installation is reverse. and be sure to replace the starter shims in the same location between the engine and the starter if your model has one.
You should be able to buy starter shims at any auto parts outlet. If not their you could get them at the dealers parts department.
Disconnect battery. Then the electrical connection on the starter solenoid. Remove the starter bolts and the starter. Note the location of the spacer shims. Installation is the reverse. Don't forget the spacers shims or you will get noise when starting the vehicle.
There are several shims that could be used such as starter shims (for adjusting drive gear to ring gear), caster/camber shims (for front end alignment), body shims (for aligning body panels),
Shims bring the starter closer or further from the ring gear for proper alignment.
Not supposed to. Problem is most likely not releasing quickly enough once engine does start, usually bad starter & or solenoid or you need some shims.