The GR Corolla NEEDS longer wheel studs if you're running aftermarket conical seat lugs. I said it, I stand by it. Feel free to @me.
Factory Wheel Stud when mounting WedsSport TC105N, Enkei RPF1, and Konig Heliogram ended up with 5.5 Turns Front axle. 6.0 turns Rear axle (with stock spacer). This is not a safe amount. MINIMUM engagement from Tire Rack and H&R Spacers is 6.5 turns on 12x1.5 Wheel Studs. Lug nut companies suggest FULL engagement which would be 12mm of engagement which is 8 full turns of the lug nut.
The job to install these wheel studs from ARP is not a big challenge, but it can be a little daunting. I will break down the step by step here with a few photos as well.
Front:
1.) Remove the front wheels
2.) Remove the front brake caliper, we removed the radial bolt on the caliper itself.
3.) Remove the front rotor
4.) Knock out all 5 factory tiny wheel studs (air hammer is nice for this, on a low setting will pop them right out)
5.) Bend the backing plate near the "notch", the ARPs are too long to make it through without slight modification. We bent the backing plate back afterwards.
6.) Rotate the hub and slide ARP Wheel Stud through the hole once lined up.
7.) Use a wheel stud installation tool (found here ) to pull the wheel studs in and seat them. Use an old lug nut to keep new lugs nice.
8.) Repeat steps 6.) and 7.) 4 more times.
9.) Reinstall Rotor
10.) Reinstall Caliper 79 ft lbs
11.) Install the new wheels and spin on your new lug nuts
Repeat on other side.
Rear:
1.) Remove Rear Wheel
2.) Remove Rear Caliper
3.) Remove Rear Rotor (make sure ebrake is not engaged)
4.) Remove Axle Nut Detent with Detent Tool (found here) Remove Rear Axle Nut with 12 pt 30mm Socket (found here)
5.) Remove Rear Wheel Hub (4 Bolts gotten from the rear)
6.) Take Hub to a vise, and place it in a vise
7.) Air hammer out wheel studs
8.) Using Wheel Stud install tool to install ARP Wheel Studs
9.) Reinstall Rear Wheel Hub 66 ft lbs
10.) Reinstall Axle Nut snug down full torque will be later
11.) Reinstall Rotor
12.) Reinstall Caliper 79 ft lbs
13.) Install new wheels with conical seat lugs
14.) Lower car till wheels are barely touching the ground, torque rear axle nut (158 ft lbs) and detent axle nut
All Four Wheels
15.) Torque Lug Nuts on all 4 wheels. I opted for 75 ft lbs
16.) take photos
17.) post on social media