{"title":"1988–1998 Chevy OBS Air Suspension \u0026 Parts","description":"\u003cp\u003eShop Ekstensive Metal Works suspension parts for 1988–1998 Chevy and GMC OBS trucks. Find complete air suspension systems, front cup kits, control arms, rear air suspension kits, step notches, rollpans and other chassis parts in one vehicle-specific collection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFits popular OBS applications:\u003c\/strong\u003e 1988–1998 Chevrolet C\/K 1500 and GMC full-size trucks. Exact fitment varies by product, drivetrain and wheel size, so check the individual product details before ordering.\u003c\/p\u003e\u003cp\u003eWhether you are building a mild air-ride setup or a laid-out truck, EKMW components are designed around real-world custom truck builds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eComplete your setup:\u003c\/strong\u003e Browse \u003ca href=\"\/collections\/complete-air-kits\"\u003eComplete Air Ride Kits\u003c\/a\u003e, \u003ca href=\"\/collections\/air-management-kits-1\"\u003eAir Management\u003c\/a\u003e, \u003ca href=\"\/collections\/compressors\"\u003eCompressors\u003c\/a\u003e, \u003ca href=\"\/collections\/air-bags\"\u003eAir Bags\u003c\/a\u003e, or return to \u003ca href=\"\/pages\/shop-by-vehicle\"\u003eShop by Vehicle\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"88-98-chevy-1500-f-b-17-22s","title":"88'-98' Chevy 1500 Full Air Suspension Setup - Wheel size up to 22's","description":"\u003ch2\u003e1988–1998 Chevy OBS Complete Air Suspension Kit\u003c\/h2\u003e\n\u003cp\u003eThis complete EKMW air suspension setup is built for 1988–1998 Chevy 1500 OBS trucks. The package combines a front cup kit, complete rear suspension system and air-management hardware for a full front-and-rear air-ride installation.\u003c\/p\u003e\n\u003ch3\u003eFitment \u0026amp; wheel size\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1988–1998 Chevy 1500\u003c\/li\u003e\n\u003cli\u003eOBS truck applications\u003c\/li\u003e\n\u003cli\u003eDesigned to lay the truck with up to 22-inch wheels\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDrop spindles are required\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKit includes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFront cup kit with shock relocators\u003c\/li\u003e\n\u003cli\u003eComplete rear suspension kit\u003c\/li\u003e\n\u003cli\u003e4 Air Lift Dominator 2600 air bags with 1\/2-inch ports\u003c\/li\u003e\n\u003cli\u003eViair 444C chrome dual-pack compressors\u003c\/li\u003e\n\u003cli\u003e200 PSI pressure switch\u003c\/li\u003e\n\u003cli\u003ePAC 80 relay\u003c\/li\u003e\n\u003cli\u003e180A circuit breaker\u003c\/li\u003e\n\u003cli\u003e7-gallon 5-port air tank\u003c\/li\u003e\n\u003cli\u003e4 SMC 3\/8-inch valves\u003c\/li\u003e\n\u003cli\u003e2 EKMW rocker switches\u003c\/li\u003e\n\u003cli\u003eViair dual-needle air gauge\u003c\/li\u003e\n\u003cli\u003e50 ft of 3\/8-inch DOT air line\u003c\/li\u003e\n\u003cli\u003e25 ft of 1\/4-inch DOT air line\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFittings included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e5 × 3\/8-inch PTC T unions\u003c\/li\u003e\n\u003cli\u003e4 × 3\/8-inch PTC × 3\/8-inch NPT straight fittings\u003c\/li\u003e\n\u003cli\u003e2 × 3\/8-inch PTC × 3\/8-inch NPT 90° fittings\u003c\/li\u003e\n\u003cli\u003e4 × 3\/8-inch PTC × 1\/2-inch NPT 90° fittings\u003c\/li\u003e\n\u003cli\u003e2 × 3\/8-inch PTC to 1\/4-inch PTC reducers\u003c\/li\u003e\n\u003cli\u003e2 × 1\/4-inch PTC × 1\/8-inch FNPT gauge reducers\u003c\/li\u003e\n\u003cli\u003e1 × 3\/8-inch PTC × 1\/4-inch NPT straight fitting\u003c\/li\u003e\n\u003cli\u003e2 × 3\/8-inch NPT brass tees\u003c\/li\u003e\n\u003cli\u003e4 × 3\/8-inch NPT brass nipples\u003c\/li\u003e\n\u003cli\u003e1 × 3\/8-inch NPT to 1\/8-inch NPT brass reducer\u003c\/li\u003e\n\u003cli\u003e1 × 3\/4-inch NPT to 3\/8-inch NPT brass reducer\u003c\/li\u003e\n\u003cli\u003e1 × 1\/4-inch NPT brass tee\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAdditional items required\u003c\/h3\u003e\n\u003cp\u003ePower wiring and thread-sealing tape for the fittings are required and are not included.\u003c\/p\u003e","brand":"Ekstensive Metal Works","offers":[{"title":"Default Title","offer_id":11086965187,"sku":"","price":2550.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1059\/5482\/products\/2011-12-21_13-45-07_639.jpg?v=1491358191"},{"product_id":"88-98-chevy-gm-1-2-3-4-1-ton-15-22in","title":"88'-98' Chevy\/GM 1\/2 ton to 1 ton Front Cup Kit w\/ Shock Mounts","description":"Front mounting kit for the 1988-1998 Chevy GMC Fullsize 1500-3500 Pickup\u003cbr\u003eThis kit includes the upper cup that bolts into the frame and lower cup that is angled to push it away from the frame as the truck goes up and down. Kit also includes the upper and lower shock relocators. This kit will lay your truck out with up to 22in rims with drop spindles and factory control arms. Any thing above a 18in wheel you will have to notch the frame for the tie rod end.","brand":"Ekstensive Metal Works","offers":[{"title":"Default Title","offer_id":11089279107,"sku":"CKF88","price":150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1059\/5482\/products\/88-98chevyfront.jpg?v=1447860981"},{"product_id":"88-98-chevy-gmc-control-arm-kit","title":"88'-98' Chevy\/GMC Silverado 1500 Front Control Arm Kit","description":"\u003ch2\u003e1988–1998 Chevy \/ GMC OBS Front Control Arm Kit\u003c\/h2\u003e\n\u003cp\u003eEKMW front control-arm kit for 1988–1998 Chevy and GMC full-size OBS trucks. This is a fabrication-oriented front suspension package for air-ride builds running larger wheels.\u003c\/p\u003e\n\u003ch3\u003eFitment \u0026amp; wheel size\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1988–1998 Chevy \/ GMC 1500\u003c\/li\u003e\n\u003cli\u003eDesigned for 22-inch to 26-inch wheel combinations\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDrop spindles are required\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKit includes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUpper and lower control arms\u003c\/li\u003e\n\u003cli\u003eMOOG ball joints\u003c\/li\u003e\n\u003cli\u003eLower bag cups for the control arms\u003c\/li\u003e\n\u003cli\u003eShock relocators with shocks\u003c\/li\u003e\n\u003cli\u003eUpper bag cups\u003c\/li\u003e\n\u003cli\u003eUpper relocation tabs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTrack width\u003c\/h3\u003e\n\u003cp\u003eThe EKMW control-arm geometry narrows the front track width approximately 1 inch per side, helping provide additional clearance for larger-wheel air-suspension builds.\u003c\/p\u003e\n\u003ch3\u003eInstallation note\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eThis is not an entry-level installation.\u003c\/strong\u003e Proper fabrication, suspension setup and alignment knowledge are required.\u003c\/p\u003e","brand":"Ekstensive Metal Works","offers":[{"title":"Default Title","offer_id":11089382403,"sku":"","price":1350.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1059\/5482\/products\/arms.jpg?v=1605643838"},{"product_id":"88-98-chevy-gm-1-2-ton-rear-air-suspension-kit","title":"88'-98' Chevy\/GMC Silverado\/Sierra 1\/2ton Rear Air Suspension Kit","description":"\u003ch2\u003e1988–1998 Chevy \/ GMC OBS Rear Air Suspension Kit\u003c\/h2\u003e\n\u003cp\u003eEKMW rear air suspension kit for 1988–1998 Chevy and GMC 1\/2-ton full-size trucks. This setup replaces the rear leaf-spring arrangement with an EKMW 2-link system, welded step notch, bag mounts, shock mounts and panhard-bar components.\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1988–1998 Chevy \/ GMC full-size 1\/2-ton pickup\u003c\/li\u003e\n\u003cli\u003eOBS truck applications\u003c\/li\u003e\n\u003cli\u003eRear air suspension conversion\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow the kit installs\u003c\/h3\u003e\n\u003cp\u003eThe one-piece notch slips over the frame and welds in place. Upper shock mounts are already welded to the notch crossbars. After the notch is installed, the frame is cut and boxed using the supplied filler pieces.\u003c\/p\u003e\n\u003cp\u003eThe 2-link bars install using the factory leaf-spring hangers and bolt to the rear axle with the supplied U-bolt kit. The bars include lower bag mounts, lower shock mounts and a 2-inch block.\u003c\/p\u003e\n\u003cp\u003eThe upper bag mounts are built into the supplied crossbar. Position the crossbar over the lower 2-link bag mounts and weld it in place.\u003c\/p\u003e\n\u003cp\u003eThe notch already includes the panhard-bar frame mount. Bolt the bar to the notch, weld the axle-side mount in place, and the suspension is ready for air bags.\u003c\/p\u003e\n\u003ch3\u003eImportant installation note\u003c\/h3\u003e\n\u003cp\u003eThis kit requires welding, frame cutting and fabrication. Confirm your wheel\/tire combination and intended ride height before installation.\u003c\/p\u003e","brand":"Ekstensive Metal Works","offers":[{"title":"Default Title","offer_id":11090928323,"sku":"","price":850.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1059\/5482\/products\/88-98chevyrear1.jpg?v=1447864516"},{"product_id":"1988-1998-chevy-loose-notch","title":"88'-98' Chevy\/GMC Silverado\/Sierra Step Notch (Unwelded)","description":"\u003cspan\u003e88 - 98 Chevy 1\/2 ton complete step notch plate kit loose.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eNotch is big enough to lay up to 28in wheels.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eComes with 4 Step notch plates and the Fillers for the top and bottom of the notch.\u003c\/span\u003e","brand":"Ekstensive Metal Works","offers":[{"title":"Default Title","offer_id":11093494915,"sku":"","price":175.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1059\/5482\/products\/EKMW_Notch_60216efa-5152-4a68-8658-36f470f13749.png?v=1557502995"},{"product_id":"88-98-chevy-notch-welded-with-crossbars","title":"1988–1998 Chevy\/GMC OBS Welded Notch w\/ Bridge Bars","description":"\u003ch2\u003e1988–1998 Chevy \/ GMC OBS Welded Step Notch with Bridge Bars\u003c\/h2\u003e\n\u003cp\u003eApplication-specific welded step notch for 1988–1998 Chevy and GMC 1\/2-ton OBS trucks. Designed to create the rear axle clearance needed for low air-suspension builds while incorporating key rear suspension mounting points.\u003c\/p\u003e\n\u003ch3\u003eFitment \u0026amp; wheel size\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1988–1998 Chevy \/ GMC 1\/2-ton full-size pickup\u003c\/li\u003e\n\u003cli\u003eOBS applications\u003c\/li\u003e\n\u003cli\u003eDesigned for builds running up to approximately 24-inch wheels with low-profile tires when installed as intended\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIncludes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFully welded step notch\u003c\/li\u003e\n\u003cli\u003eBridge \/ cross bars\u003c\/li\u003e\n\u003cli\u003eUpper shock mounts\u003c\/li\u003e\n\u003cli\u003ePanhard-bar frame mount\u003c\/li\u003e\n\u003cli\u003eFrame filler plates\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation note\u003c\/h3\u003e\n\u003cp\u003eRequires frame cutting, welding and fabrication. Confirm wheel\/tire diameter, axle position and laid-out height before final installation.\u003c\/p\u003e","brand":"Ekstensive Metal Works","offers":[{"title":"Default Title","offer_id":11093679491,"sku":"NTC88","price":400.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1059\/5482\/products\/notch_80PNG_a7509efc-c9de-4420-839a-7b2bf555cb49.png?v=1548177351"},{"product_id":"88-98-chevy-welded-no-crossbars","title":"88'-98' Chevy\/GMC Silverado\/Sierra Welded Step Notch (Notch Only)","description":"\u003cspan\u003e1988-1998 Chevy, GMC 1500 step notch welded up with loose filler plates. Lay up to 24in wheel with a low profile tire. Comes as a pair.\u003c\/span\u003e","brand":"Ekstensive Metal Works","offers":[{"title":"Default Title","offer_id":11093696835,"sku":"","price":300.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1059\/5482\/products\/Step_4d3d0651-b575-4dc0-81e6-030f739aa43f.png?v=1557502517"},{"product_id":"88-89-chevy-1500-lower-ball-joint-cup","title":"88'-98' Chevy Silverado 1500 Lower Ball Joint Cup (sold individually)","description":"88-89 Chevy 1500 Lower Ball Joint Cup","brand":"Ekstensive Metal Works","offers":[{"title":"Default Title","offer_id":19763547537496,"sku":"","price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1059\/5482\/products\/Screen_Shot_2019-03-09_at_10.20.14_AM.png?v=1552148542"},{"product_id":"88-98-chevy-fleetside-rollpan","title":"88-98 Chevy Fleetside Rollpan","description":"\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eBox location will be center only\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eALL ROLLPANS ARE CUT FROM 18 GAUGE AND HAND MADE IN THE U.S.A.\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eBY GrantFab\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e*** BUILD TIME 5-7 BUSINESS DAYS\u003c\/strong\u003e\u003c\/p\u003e","brand":"GRANTFAB","offers":[{"title":"SMOOTH \/ NO LIGHT","offer_id":39370655596632,"sku":"","price":190.0,"currency_code":"USD","in_stock":true},{"title":"SMOOTH \/ ADD LICENSE PLATE LIGHT","offer_id":39370655629400,"sku":"","price":200.0,"currency_code":"USD","in_stock":true},{"title":"ADD BOX \/ NO LIGHT","offer_id":39370655662168,"sku":"","price":250.0,"currency_code":"USD","in_stock":true},{"title":"ADD BOX \/ ADD LICENSE PLATE LIGHT","offer_id":39370655694936,"sku":"","price":260.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1059\/5482\/products\/8898.jpg?v=1619120058"}],"url":"https:\/\/store.ekstensive.com\/collections\/1988-1998-chevy-obs-air-suspension-parts.oembed","provider":"Ekstensive Metal Works","version":"1.0","type":"link"}