{"title":"S\u0026S 1988-98 Chevy \/ GMC C1500 OBS","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eLevel 7 Brake Line Plumbing kits for the 1988-98 Chevy \/ GMC C1500 OBS.\u003c\/p\u003e","products":[{"product_id":"trackspec-73-87-c10-hood-louvers","title":"Level 7 Motorsports 1973-87 C10 Hood Louvers","description":"\u003cp\u003e\u003cspan\u003eWe are proud to offer Trackspec hood Louvers for your C10 truck!  Not only are we a dealer for Trackspec but we worked directly with John to provided the perfect template for each c10 hood.  The primary object of these louvers is to decrease under hood pressure and allow the front of the truck to stay closer to the ground at high speeds.  The front of your truck is high off the ground and very flat compared to a sports car.  At-speed air is forced through the radiator and pressurizes the engine bay.  The air is forced to escape out from under the truck thus creating lift.  These louvers allow the air pressure to escape up out of the hood and mix with air traveling over the hood and truck.  This keeps the front of the truck and hood more stable.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMade of T6061 in the USA\u003c\/li\u003e\n\u003cli\u003eIncreased aerodynamics\u003c\/li\u003e\n\u003cli\u003eReduced under hood temperatures \u003c\/li\u003e\n\u003cli\u003eIn stock and ready to ship\u003c\/li\u003e\n\u003cli\u003eShip powder coated satin black\u003c\/li\u003e\n\u003cli\u003eIncludes install instructions and black rivets\u003c\/li\u003e\n\u003cli\u003eAt widest parts dimensions are: 26.75\"x16\" \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"trackspec","offers":[{"title":"Default Title","offer_id":35092356890781,"sku":"73-87 C10 Hood Louvers","price":359.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1356\/0921\/products\/73hoodloovers.jpg?v=1655320999"},{"product_id":"level-7-motorsports-1988-1998-chevy-gmc-c1500-brake-master-spacer-obs","title":"Manual Brake Master Cylinder Adapter. 1988-98 Chevy \/ GMC C1500 (OBS)","description":"\u003cp\u003eLevel 7 Motorsports has developed a bolt in solution for a manual brake master cylinder for the 1988-98 OBS chevy trucks.  This kit moves the master cylinder down, inline of the pedal push rod with zero modification to your firewall.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003eComes with hardware stainless hardware\u003c\/li\u003e\n\u003cli\u003eMachined from Billet T6061 Aluminum\u003c\/li\u003e\n\u003cli\u003eAnodized black\u003c\/li\u003e\n\u003cli\u003ePlease email us for help determining what bore size of Wilwood master cylinder to use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePlease click the link below to find our OBS Chevy master cylinder kit.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/shop.levelsevenmotorsports.com\/products\/wilwood-manual-brake-master-cylinder-kit-for-obs-ck1500-trucks\" title=\"Wilwood Manual Brake Master Cylinder Kit for OBS CK1500 Trucks (Manual Brakes)\"\u003e- Wilwood Manual Brake Master Cylinder Kit for OBS CK1500 Trucks (Manual Brakes)\u003c\/a\u003e\u003c\/p\u003e","brand":"Level 7 Motorsports","offers":[{"title":"Default Title","offer_id":43340815007920,"sku":"LEVOBSBMS","price":175.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1356\/0921\/files\/OBSFirewallspacer1.png?v=1712182334"},{"product_id":"pro-series-rear-end-plumbing-kit-c10-with-9in","title":"Pro Series Rear End Plumbing Kit, 9in with Rear Mount Calipers","description":"\u003cp\u003eLevel 7 Pro Series rear end plumbing kit for a C10 with 9in rear end with rear mount calipers.  Includes \"whip\" line from chassis to rear end, left and right caliper hoses, and all installation hardware.  All Pro Series hoses are built with stainless steel hose ends, DOT approved -3AN PTFE lined, stainless braided, and silicone coated to ensure reliable long-term performance.\u003c\/p\u003e\n\u003cp\u003eNotes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThis kit will \u003cstrong\u003eNOT\u003c\/strong\u003e work for drum rear brakes.\u003c\/li\u003e\n\u003cli\u003eWill work with stock width and narrowed axles down to 60\" WMS\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBrake Caliper adapters are \u003cstrong\u003eNOT\u003c\/strong\u003e Included, available for purchase separately.\u003cmeta charset=\"utf-8\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eKit Includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRear Whip Line (Chassis to Axle)\u003c\/li\u003e\n\u003cli\u003eLeft and Right Lines Caliper Hoses\u003c\/li\u003e\n\u003cli\u003eRear End Housing Bracket\u003c\/li\u003e\n\u003cli\u003eAdapter Fittings and Tee\u003c\/li\u003e\n\u003cli\u003eInstallation Hardware - 3 different mounting solutions included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTo purchase Caliper Adapter Fittings use links below:\u003cbr\u003e\u003ca href=\"https:\/\/shop.levelsevenmotorsports.com\/products\/3an-to-1-8-npt-90-deg-adatper?pb=0\" title='1\/8\" NPT 90° to -3AN adapter'\u003e1\/8\" NPT (Wilwood and others)\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/shop.levelsevenmotorsports.com\/products\/3-8-24-to-3an-banjo-kit?_pos=2\u0026amp;_sid=a1875972e\u0026amp;_ss=r\" title='3\/8\"-24 to -3AN Banjo Kit'\u003e3\/8\"-24 Banjo\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/shop.levelsevenmotorsports.com\/products\/7-16-20-to-3an-banjo-kit?_pos=2\u0026amp;_sid=c3856068d\u0026amp;_ss=r\" title='7\/16\"-20 Banjo Kit'\u003e7\/16\"-20 Banjo\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/shop.levelsevenmotorsports.com\/products\/m10x1-0-to-3an-banjo-kit-copy?_pos=2\u0026amp;_sid=2018c0bad\u0026amp;_ss=r\u0026amp;pb=0\" title=\"M10 x 1.0 Banjo Kit\"\u003eM10x1.0 Banjo\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/shop.levelsevenmotorsports.com\/products\/m10x1-5-to-3an-banjo-kit\" title=\"M10 x 1.5 to -3AN Banjo Kit\"\u003eM10x1.5 Banjo\u003c\/a\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"Level 7 Motorsports","offers":[{"title":"67-72 C10","offer_id":44176260858032,"sku":"PS-6772-9INCH-RM","price":299.99,"currency_code":"USD","in_stock":true},{"title":"73-87 C10","offer_id":44176260890800,"sku":"PS-7387-9INCH-RM","price":299.99,"currency_code":"USD","in_stock":true},{"title":"88-98 C1500","offer_id":45073537138864,"sku":"40341-0-KIT","price":299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1356\/0921\/files\/kit1withallfasteners.png?v=1737755804"},{"product_id":"pro-series-chassis-brake-plumbing-kit-88-98-chevy-gmc-c1500-obs","title":"Pro Series Chassis Brake Plumbing Kit, 1988-98 Chevy \/ GMC C1500 OBS","description":"\u003cp\u003eLevel 7 Motorsports has developed this brake line kit specifically for the popular 1988-98 Chevy \/ GMC C1500 OBS Trucks.  Currently only available for Short Bed \/ Short Cab\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cem\u003eIMPORTANT: This kit is designed to work with Wilwood's combination proportioning valve. The prop valve can be used with the Stock (OEM) or Wilwood master cylinder.  If using with the stock master cylinder you will need to fabricate the short lines from the master to the prop valve. This kit can be used on your stock OBS frame only.\u003cbr\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe brake lines in this kit follow the similar factory routing, offers exceptional performance, and installs easily and quickly!\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eThe lines in this kit feature a PTFE inner lining that is compatible with all fluids and is wrapped in a braided stainless steel cover to resist abrasion and corrosion. Then they are covered with a special PVC coated material for maximum durability against debris and abrasion.  All Pro Series hoses use stainless steel hose ends for many years of corrosion resistance and durability.  The hoses are all DOT approved and are all crimped by the manufacturer.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIncluded in the kit are the hoses from the proportioning valve to the chassis, chassis bulkhead fittings and brackets, hoses for the front left and right that terminate at the factory front brake caliper hoses, and a rear hose in two parts that terminates on the factory frame hose bracket.  \u003cem\u003e\u003cspan style=\"color: #ff2a00;\"\u003eBrake calipers hoses and rear axle plumbing are not included.  \u003c\/span\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cspan style=\"color: #000000;\"\u003eDOT approved hose kit to plumb your factory 1988-98 OBS chassis.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cspan style=\"color: #000000;\"\u003eInstalls easily and quickly!\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cspan style=\"color: #000000;\"\u003eCan use stock front and rear brake hoses.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cspan style=\"color: #000000;\"\u003ePTFE Hoses, Stainless reinforced, and silicone coated.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cspan style=\"color: #000000;\"\u003eBlack in color\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cspan style=\"color: #000000;\"\u003eIncludes new whip hose bracket\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e_____________________________________________________________________________\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: #ff2a00;\"\u003e\u003cspan style=\"color: #000000;\"\u003eInstallation Instructions:\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" title=\"Power Brake Chassis Plumbing Kit Instructions\" href=\"https:\/\/levelsevenmotorsports.com\/wp-content\/uploads\/2026\/02\/Instructions-1988-98-C1500-Chassis-Brake-Plumbing-Kit-Power.pdf\" target=\"_blank\"\u003ePower Brake Plumbing Kit Instructions\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" title=\"Manual Brake Chassis Plumbing Kit Instructions\" href=\"https:\/\/levelsevenmotorsports.com\/wp-content\/uploads\/2026\/02\/Instructions-1988-98-C1500-Chassis-Brake-Plumbing-Kit-Manual.pdf\" target=\"_blank\"\u003eManual Brake Chassis Plumbing Kit Instructions\u003c\/a\u003e\u003c\/p\u003e","brand":"Level 7 Motorsports","offers":[{"title":"OBS - Power Brakes","offer_id":44792060379312,"sku":"PS-OBS-SBSC-1","price":825.0,"currency_code":"USD","in_stock":true},{"title":"OBS - Manual Brakes","offer_id":44792060412080,"sku":"PS-OBS-SBSC-2","price":795.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1356\/0921\/files\/powerOBSbrakekit.png?v=1771345366"},{"product_id":"level-7-motorsports-hood-louvers-1988-98","title":"Level 7 Motorsports Hood Louvers 1988-98","description":"\u003cp\u003e\u003cspan\u003eWe are proud to offer hood Louvers for your OBS truck!  The primary object of these louvers is to decrease under hood pressure and allow the front of the truck to stay closer to the ground at high speeds.  The front of your truck is high off the ground and very flat compared to a sports car.  At-speed air is forced through the radiator and pressurizes the engine bay.  The air is forced to escape out from under the truck thus creating lift.  These louvers allow the air pressure to escape up out of the hood and mix with air traveling over the hood and truck.  This keeps the front of the truck and hood more stable.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMade of T6061 in the USA\u003c\/li\u003e\n\u003cli\u003eIncreased aerodynamics\u003c\/li\u003e\n\u003cli\u003eReduced under hood temperatures \u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eShip powder coated satin black\u003c\/li\u003e\n\u003cli\u003eIncludes install instructions and black rivets\u003c\/li\u003e\n\u003cli\u003eAt widest parts dimensions are: 26.75\"x16\" \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Trackspec","offers":[{"title":"Default Title","offer_id":44940780470448,"sku":"OBS Hood Louvers","price":359.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1356\/0921\/files\/73hoodloovers.jpg?v=1769726818"},{"product_id":"88-98-obs-extreme-inner-fenders","title":"88-98 OBS Extreme Inner Fenders","description":"\u003cp\u003e1988-1998 C\/K1500 OBS inner fenders. These are designed for extreme drop\/body dropped applications. Designed around the use of an aftermarket chassis or stock chassis with the proper control arm relocation done. If your truck has excessive negative camber aired out these are not for you. Lays body with a 265\/35r22 or equivalent 29.5\" tall tire. Any taller requires modifications to the hood structure.\u003c\/p\u003e\n\u003cp\u003eRetains use of factory components such at A\/C drier and brake boosters given the proper options selected. Gives adequate room to tub the firewall if need be. Hood \"springs\" need to be replaced with aftermarket gas shock options. 100% bolt in design, no welding required.\u003c\/p\u003e\n\u003cp\u003eFabricated in house from TIG welded and metal finished 18 gauge steel. Single bead pattern and raw (bare) finish only.  Purchase includes 2 inner fender assemblies with side panels. Vacuum option includes notching drivers inner fender for additional clearance.   \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease refer to header at top of page for most up to date lead times!!!\u003c\/strong\u003e   \u003cbr\u003e\u003c\/p\u003e","brand":"Hart Fab","offers":[{"title":"Manual\/HydroBoost","offer_id":45008996663472,"sku":"sku-39953255596067","price":925.0,"currency_code":"USD","in_stock":true},{"title":"Vacuum Up to 10\"","offer_id":45008996696240,"sku":"sku-39953255628835","price":995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1356\/0921\/files\/image_9967153d-dfd9-4c63-9323-4cf4b218f5f2.png?v=1773352605"},{"product_id":"88-98-obs-stage-2-inner-fenders","title":"88-98 OBS Stage 2 Inner Fenders","description":"\u003cp\u003e1988-1998 C\/K 1500-3500 Inner fenders. Increase tire clearance while adding style under your hood. These are designed for trucks that are air bagged \/ not body dropped and lay the crossmember on the ground with up to a 30\" tall tire. Not Ideal for a simple 5\/7 drop due to the height, but can be used. \u003c\/p\u003e\n\u003cp\u003e\"Notched for Booster\" works with factory boosters up to 10\", \"Manual\/Hydro boost fits manual master cylinder conversions or factory Hydro boost brakes.  These are designed with firewall tubbing in mind where the factory fuse panel bulkhead has been relocated on the drivers side along with the engine bulkhead on the passenger side (88-94).  These will work with these items in the original locations, however the inner fender will need trimmed accordingly. WILL NOT work with factory hood spring.  \"Wam Rods\" shocks or full aftermarket hood hinges are compatible. \u003c\/p\u003e\n\u003cp\u003eFabricated in house from TIG welded and metal finished 18 gauge steel. Offered in raw (bare) finish only.  Purchase includes 2 inner fender assemblies with side panels.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e~~PARTS ARE BUILT TO ORDER !!!!~~ Please refer to the header at the top of the page for most up to date lead times. \u003c\/strong\u003e\u003c\/p\u003e","brand":"Hart Fab","offers":[{"title":"Single \/ Manual\/Hydroboost","offer_id":45009000792240,"sku":"sku-41031530709027","price":925.0,"currency_code":"USD","in_stock":true},{"title":"Single \/ Vacuum Up to 10\"","offer_id":45009000825008,"sku":"sku-41031530741795","price":995.0,"currency_code":"USD","in_stock":true},{"title":"Standard \/ Manual\/Hydroboost","offer_id":45009000857776,"sku":"sku-41031530774563","price":925.0,"currency_code":"USD","in_stock":true},{"title":"Standard \/ Vacuum Up to 10\"","offer_id":45009000890544,"sku":"sku-41031530807331","price":995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1356\/0921\/files\/F7097AA8-943A-4A3F-A552-1278561952B7.jpg?v=1773352601"},{"product_id":"lowering-kit-4-6","title":"Lowering Kit 4\/6","description":"\u003cp data-start=\"165\" data-end=\"416\"\u003eUpgrade your classic Chevy with our premium American-made drop kit. This complete package delivers a\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"270\" data-end=\"293\"\u003e4-inch front drop\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand a\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"300\" data-end=\"320\"\u003e6-inch rear drop\u003c\/strong\u003e, giving your truck the perfect stance and improved handling without sacrificing ride quality.\u003c\/p\u003e\n\u003cp data-start=\"418\" data-end=\"727\"\u003eEach component is\u003cspan\u003e \u003c\/span\u003e\u003cstrong data-start=\"436\" data-end=\"471\"\u003eprecision-engineered in the USA\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efor strength, reliability, and performance. The kit includes everything you need for installation. Whether you’re going for a show-quality stance or enhanced street performance, this setup is built to perform and built to last.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh Quality American Made Components\u003c\/li\u003e\n\u003cli\u003eSteel Construction\u003c\/li\u003e\n\u003cli\u003e100% Bolt On\u003c\/li\u003e\n\u003cli\u003eFits Under Stock Bed Floor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eIncludes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNotches\u003c\/li\u003e\n\u003cli\u003e6″ Drop Flip Kit\u003c\/li\u003e\n\u003cli\u003eU-Bolts\u003c\/li\u003e\n\u003cli\u003e2″ Drop Spindles\u003c\/li\u003e\n\u003cli\u003e2″ Drop Springs\u003c\/li\u003e\n\u003cli\u003eGrade 8 Hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2WD 88-98 Chevy\/GMC\u003c\/li\u003e\n\u003cli\u003e1\/2 Ton Short or Long Bed Trucks\u003c\/li\u003e\n\u003cli\u003e1.00″ Wide LD Brake Rotors or 1.25″ Wide HD Brake Rotors\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tinworks Suspension","offers":[{"title":"1.00\" Rotors \/ 4\/6","offer_id":45026223521968,"sku":"8898-OBS-LK46LD","price":825.0,"currency_code":"USD","in_stock":true},{"title":"1.00\" Rotors \/ 5\/7","offer_id":45114343620784,"sku":"sku-42752233308256","price":1025.0,"currency_code":"USD","in_stock":true},{"title":"1.25\" Rotors \/ 4\/6","offer_id":45026223554736,"sku":"8898-OBS-LK46HD","price":825.0,"currency_code":"USD","in_stock":true},{"title":"1.25\" Rotors \/ 5\/7","offer_id":45114343653552,"sku":"sku-42752233341024","price":1025.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1356\/0921\/files\/29178_tw-product-photo-4-1-scaled.jpg?v=1774472765"},{"product_id":"obs-air-tank-bracket","title":"OBS Air Tank Bracket","description":"\u003cp\u003eThis pre-drilled air tank bracket is designed to hold two 3-gallon tanks and dual compressors with ease. Built for a clean, organized setup, it features a direct bolt-in design for quick installation. 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