Readylift 3 inch SST Question

jgraves said:

I'm not familiar with the lift but several lifts include replacement upper control arms with larger ball joints. Even factory, the upper ball joint is close to the tire sidewall. These kits require reduced offset to maintain clearance between the sidewall and ball joint. The lift companies are likely providing a safe recommendation to maintain the factory clearance and limit their liability.

I'm running 315/70R17 on +18ET on stock suspension for winter. I was very careful checking my tire fitment and it is very close (approx. 5mm less than factory). There are no marks on my sidewalls after 4-5 months but, there is a possibility a bad wheel bearing, sidewall bulge or other minor issue could lead to a cut sidewall and rapid deflation.

285s on stock +28ET wheels and stock UCAs would have less sidewall clearance than stock but more than my winters. They could rub the Readylift UCAs but are likely in that grey zone of clearance under "most" conditions.

LT285/60R20 KO3s measure very close to the OE Goodyears on the AT4. They may not rub w/o a lift on OE wheels but I would recommend a DIY or Westcott Designs fender liner kit. This mod is almost invisible unless you're under the truck, mostly reversible and gains more clearance than a 2-3" lift. Tire clearance is not the only reason to install a lift but don't expect to gain huge clearance with a small lift due to the shape of our fenders.

Jeff

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