Oracle gives you the allen key to aim them. The cap is rubber and on the back of the headlight. it's about the size of a nickel. Bit of a PITA to pull out and the passenger side is a tiny challenge thanks to the air box
I would have bought the Rubi Diesel...not available in 20. Also my weekly drive cycle would not support a diesel as a DD. You get the better knuckles and really no need to regear for 37s. Reid was less than the factory Mojave. I actually cancelled an order for the Mojave knuckles.
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