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JamesAT18 posted a topic in 2014-2018 Silverado & Sierra ModsGood morning everyone, I recently purchased a 2018 GMC Sierra Crew Cab SLT All-Terrain package. I'm personally wanting to install a leveling kit and I believe I've selected one. I've read a lot about leveling kits for 2017-18 trucks and this seems like a great kit. However, there isn't many reviews on this product by ReadyLift. The appeal of this lift is the UCA replacements and the <2" height it allows. I'm wanting to go with 305/55/20 or 285/60/20 tires with my stock AT wheels and I want as much clearance possible. I found maybe 2-3 members on here with this lift and I'll quote them below. My question is, will this work with my All-Terrain package? In the description of the kit it states, "Will not work on Z71 packaged vehicles with factory Rancho® struts." Yet on ReadyLift's website, there is nothing supporting that statement. Does anyone have any information or review for this kit? Thanks!
Dug422 posted a topic in 1999-2013 Silverado & Sierra 15002007.5 nbs SiveradoI LTZ 6.0L I've been reading the forums up-and-down and can't find anybody with similar problems. kinda. My truck starts no problem, it idles nice and smooth. With no noises. And when running in V8 mode I hear no noise 1st 2nd and 3rd. Power is normal. The knocking / rattle happens when I let off the gas and the truck enters V4 for mode. I can hear a click when it does this. Then when under very slight acceleration while still in V4 Mode I start hearing a very loud knocking / rattle under the glovebox area. If I keep the truck in this position and staying in V4 Mode the noise will continue forever until I give it a little more gas and it switches to V8 mode. There is no vibration at all, and no codes are thrown. The sound seems to be rotational and related to speed and or RPM and it gets louder the closer I get to switching to V8 mode. I have checked the flex plate, it is fine Any help at all would be greatly appreciated Thanks