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Old 03-20-2022, 09:11 PM   #43
FrostZ
 
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Drives: 2019 A10 ZL1
Join Date: Mar 2020
Location: Massachusetts
Posts: 137
16-21 Rear Duct Install

After reading through this thread a while back I decided to undertake the project and see how it goes. I ordered the "Front" but actually rear deflector kit PN:84946138 which includes all the hardware spacers etc. For all those before the 22MY and reluctant to drill into the arm I got a set of the rear FE4 arms from the 22+ Camaro's with the PN:85004630 shown in post #40 of the thread. The bolts are TTY so I replaced those as well, install wasn't hard but one snag was my ratchet & socket didn't fit on the knuckle nut facing the lower control arm so a wrench took its place. I used a single jack which was fine other than aligning the arm during reinstall. I placed the knuckle bolt and nut on first, I then used a larger diameter screw driver to pull the arm into place as only half of the arms hole was aligned without help.

After that easy sailing torqueing everything to spec then putting on the deflectors. I did this without calipers installed as they are off getting powder coated but it didn't seem like it would have hindered any progress. The results are below they easily clear the stock 20in ZL1 rims I can't speak for any other sizes at this time but they fit like a glove in my case.
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