{"title":"ReadyLift","description":"\u003cp\u003eShop the full ReadyLift range at Underland Offroad. Use the vehicle filter to see only the ReadyLift parts confirmed to fit your truck or SUV.\u003c\/p\u003e","products":[{"product_id":"readylift-1-75-leveling-kit-19-silverado-sierra-1500-trailboss-at4","title":"ReadyLift 1.75\" Leveling Kit | 19+ Silverado\/Sierra 1500 | Trailboss\/AT4","description":"\u003cp style=\"font-size: 0.875rem; display: inline !important;\" data-mce-fragment=\"1\"\u003eReadyLIFT customers have asked for it and we have delivered. In fall of 2018 we announced our new leveling and SST lift kit offerings for the all-new GM 1500 trucks. We specifically did not include the factory lift kit-equipped GMC AT4 and Chevy Silverado Trail Boss. The AT4\/Trail Boss are factory equipped with a 2\" front lift. This front lift includes a longer front shock\/strut assembly. When combining a traditional leveling kit on these factory lifted trucks, several issues present themselves including binding problems with the factory control arm ball joint and contact concerns with the lower strut\/CV axle assembly.\u003c\/p\u003e\n \u003cp style=\"font-size: 0.875rem; display: inline !important;\" data-mce-fragment=\"1\"\u003e \u003c\/p\u003e\n \u003cp style=\"font-size: 0.875rem; display: inline !important;\" data-mce-fragment=\"1\"\u003e \u003c\/p\u003e\n \u003cp style=\"font-size: 0.875rem;\" data-mce-fragment=\"1\"\u003eThe ReadyLIFT 66-3921 1.75\" leveling kit is similar to our popular 66-3086 leveling kit for pre-2019 trucks. The 66-3921 leveling kit provides required amount of lift without causing conflict with the factory strut geometry and clearances. In light of the factory upper control arm's lack of dynamic range when the AT4\/Trail Boss truck is further lifted, this leveling kit includes our popular tubular upper control arms with corrected ball joint cup angles, heavy-duty replaceable ball joints and out new Terrain Control Technology (TCT) maintenance-free pivot bushings with side-biter washers to improve alignment retention.\u003c\/p\u003e\n \u003cp style=\"font-size: 0.875rem;\" data-mce-fragment=\"1\"\u003eNote: AT4 and Trail Boss do not fit the same size tire. This is due to the difference in front fender opening design. NOTE: Not compatible with Sierra AT4X or Silverado ZR2 Edition. 66-3921 Leveling Kit: AT4 - Max tire 275\/60-20, 20x9 0 offset wheel Trail Boss - Max tire 295\/65-20, 20x9 0 offset wheel\u003c\/p\u003e","brand":"ReadyLift","offers":[{"title":"Default Title","offer_id":44177034051839,"sku":"66-3921","price":499.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0195\/3434\/8352\/files\/66-3921_1100.jpg?v=1736352156"},{"product_id":"readylift-2-0-lift-kit-19-silverado-sierra-1500-trailboss-at4","title":"ReadyLift 2.0\" Lift Kit | 19+ Silverado\/Sierra 1500 | Trailboss\/AT4","description":"\u003cmeta charset=\"UTF-8\"\u003e\n \u003cp\u003eReadyLIFT customers have asked for it and we have delivered. Last fall we announced our new leveling and SST lift kit offerings for the all-new GM 1500 trucks. We specifically did not include the factory lift kit-equipped GMC AT4 and Chevy Silverado Trail Boss. The AT4\/Trail Boss are factory equipped with a 2\" front lift. This front lift includes a longer front shock\/strut assembly. When combining a traditional leveling kit on these factory lifted trucks, several issues present themselves including binding problems with the factory control arm ball joint and contact concerns with the lower strut\/CV axle assembly.\u003c\/p\u003e\n \u003cp\u003eThe 69-3920 SST Lift Kit works with the factory 2\" front lift. This kit includes a top mount strut spacer along with a pre-load spacer to limit droop and the same premium grade upper control arms now available in our 66-3921 leveling kit. OE style 3\" tall cast iron rear lift blocks and rear bump stop extension cups are also included to create a true AT4\/Trail Boss-specific bolt-on lift kit that provides 2\" of front lift and 1\" of rear lift. This new lift kit concept is similar to our successful TRD Pro Plus 2 SST Lift Kit which is also engineered specifically to work with that factory OE suspension lift. Your trust in ReadyLIFT to provide high-quality, precision engineered products is extremely important to us. You can be assured that this all-new SST lift kits are the absolutely most reliable and best performing suspension upgrade option for the AT4\/Trail Boss trucks.\u003c\/p\u003e\n \u003cp\u003eAT4 - Max tire 305\/55-20, 20x9 0 offset wheel\u003c\/p\u003e\n \u003cp\u003eTrail Boss - Max tire 295\/65-20, 20x9 0 offset wheel\u003c\/p\u003e\n \u003cp\u003eNOTE: Use of Auto 4 HI feature not recommended.. NOTE: This GM 1500 kit is NOT COMPATIBLE with vehicles equipped with rear composite mono-leaf springs. The mono-leaf is easily identifiable the U-bolt is round\/circular around the top of the leaf spring. This kit only works with vehicle equipped with traditional steel leaf springs identified by square U-bolts. NOTE: Not compatible with Sierra AT4X or Silverado ZR2 Edition.\u003c\/p\u003e","brand":"ReadyLift","offers":[{"title":"Default Title","offer_id":44755477364991,"sku":"69-3920","price":659.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0195\/3434\/8352\/files\/IMG-7339.webp?v=1736351901"}],"url":"https:\/\/underlandoffroad.com\/collections\/readylift.oembed","provider":"Underland Offroad","version":"1.0","type":"link"}