For smaller vehicles like your 2015 Infiniti Q70 there are only Class I hitches with a 1-1/4 inch opening like the Curt # C11111 that you referenced since this is a lighter duty vehicle and the 2 inch hitch size is only available for higher capacity vehicles like trucks and SUVs. view full answer...
The only trailer hitch available that is confirmed to fit the 2016 Infiniti Q70 is the Curt Class I # C11111. For the Q50 we have the Draw-Tite # 24931 or the Curt # C11407, both of which are also Class I hitches. Between those two options for the Q50 I do recommend the Curt because it's made right here in the USA.
Please just not that Curt does require the use of a stabilizing strap # 18050 with any non-trailer loads like a bike rack or cargo carrier.
All of these trailer hitches will... view full answer...
The Trailair pin boxes, like part # LC328492, don't really specify a specific psi to inflate the airbags to. You want to inflate them with enough air to raise the pin box to the ride height mark that's on the shock.
Also you always want to inflate the bags with the truck and trailer connected. view full answer...
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