{"product_id":"rdt-11243798","title":"MOMENTUM CHASSIS,FRAME,SWAY BARS,ARMS,SPINDLES,4-LINK,68-72 GM A-BODY,PIN,NARROW","description":"\u003cp\u003e\u003cstrong\u003eBrand New Ridetech Momentum Chassis with Pin Spindles \u0026amp; Narrow 57.25\" Flange to Flange Width (Part #11243798).\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFor nearly 30 years, Ridetech has pushed the boundaries of suspension performance within the constraints of factory chassis geometry. Ridetech’s Momentum Chassis Series changes all that.\u003c\/p\u003e\n\u003cp\u003eThis is Ridetech’s first-ever complete performance chassis: designed, engineered, and manufactured in the USA from the ground up for the GM A-Body platform. It delivers superior handling, increased wheel and tire clearance, and unmatched compatibility all within the adjustability and strength builders demand.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eFits:\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuick:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e1970-1972 GS\u003c\/li\u003e\n\u003cli\u003e1968-1969 GS 350\u003c\/li\u003e\n\u003cli\u003e1968-1969 GS 400\u003c\/li\u003e\n\u003cli\u003e1970-1972 GS 455\u003c\/li\u003e\n\u003cli\u003e1968-1972 Skylark\u003c\/li\u003e\n\u003cli\u003e1968-1969 Special\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChevrolet:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e1968-1972 Chevelle\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOldsmobile:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e1968-1971 442\u003c\/li\u003e\n\u003cli\u003e1968-1972 Cutlass\u003c\/li\u003e\n\u003cli\u003e1968-1972 Cutlass Supreme\u003c\/li\u003e\n\u003cli\u003e1968-1972 F85\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePontiac:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003e1968-1969 Beaumont\u003c\/li\u003e\n\u003cli\u003e1968-1972 GTO\u003c\/li\u003e\n\u003cli\u003e1968-1972 Lemans\u003c\/li\u003e\n\u003cli\u003e1968-1970 Tempest\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDoes not fit A-body Wagons or 4-doors, 1969–1972 Grand Prix, 1970–1972 Monte Carlo, and El Camino \/ GMC Sprint.\u003c\/li\u003e\n\u003cli\u003e3rd member, steering rack, coil-overs\/air ride, and rear sway bar sold separately.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eIncludes:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eChassis\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFront Sway Bar\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eUpper\/Lower Control Arms\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eBall Joints\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePin Spindles\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRear 4-link\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e9'' Rear Axle Housing\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eInstallation Hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eFeatures:\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrue Performance Geometry:\u003c\/strong\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003eReengineered suspension pickup points improve camber gain, caster, roll center, and Ackermann.\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRide Height Adjustable:\u003c\/strong\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003eLike existing Ridetech A-body systems this chassis lowers vehicle ride height roughly 2’’ from stock. \u003c\/li\u003e\n\u003cli\u003eCan be adjusted to suit desired height.\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImproved Tire Clearance:\u003c\/strong\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003eFront: Up to 275\/40R18 on 18×9″ (6″ BS) or 18″x10″ (6.5″BS) | Larger fitments possible when using steering rack limiters \u0026amp; modified inner fenders.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRear: 295\/40R18 on 18×11″ (6.5″ BS) | Mini-tubs can allow up to 335mm rear tires.\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModular Suspension Compatibility:\u003c\/strong\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003eChoose Ridetech\/Fox Factory Coilovers or Shockwave Air Suspension (Sold Separately).\u003c\/li\u003e\n\u003cli\u003eBolts directly in.\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteering Modernization:\u003c\/strong\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003eRack-\u0026amp;-pinion steering improves steering feel and feedback.\u003c\/li\u003e\n\u003cli\u003eUses common 1999–2004 Mustang rack (PSC #11009556 recommended). Sold separately.\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust Driveline Foundation:\u003c\/strong\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003eFabricated Ford 9” Rear Axle Housing available in standard width to accommodate multiple build styles. \u003c\/li\u003e\n\u003cli\u003eThird members with popular rear end ratios are also available. \u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine \u0026amp; Transmission Flexibility:\u003c\/strong\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003eAccommodates small\/big block Chevy, Buick, Oldsmobile, Pontiac, LS, \u0026amp; Gen V LT engines.\u003c\/li\u003e\n\u003cli\u003eAdjustable transmission crossmember accepts popular manuals \u0026amp; automatics\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e(T56\/TKX) and automatics (TH350, 700R4, 4L80E). This is NOT an exhaustive list.\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBraking Option:\u003c\/strong\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003ePin spindles\u003c\/li\u003e\n\u003cli\u003eWorks with stock-style \u0026amp; aftermarket Wilwood\/Baer kits (Sold Separately).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis Features:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eTubular upper \u0026amp; lower control arms with Delrin bushings | Polyurethane body bushings\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh-quality ball joints, billet sway bar mounts\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAccepts OE-style or EFI-ready fuel tanks (with 45° corner notch) or custom fuel cells, offering potential savings over other chassis\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eRecommended Tanks Inc. part numbers: TM34EN-T (68-69), TM34 BN-T (70), TM34UN-T (71-72) \u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFrame channels for clean fuel \u0026amp; brake line routing\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eOptional 3-joint steering bearing mount for better header clearance (ideal for big block engines, sold separately)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eImproved header clearance \u0026amp; exhaust routing allow for a variety exhaust solutions\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDurable powder coat finish\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eNo cutting or floor pan modifications required\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDesigned for use with factory parking brake cable\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLarge 1.5” front sway bar improves weight transfer and reduces body roll.\u003c\/li\u003e\n\u003cli\u003eFeatures billet aluminum mounts, low friction bushings, and ball joint style linkage.\u003c\/li\u003e\n\u003cli\u003eBar rate = 1,000lb\/in rate\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFront Suspension:\u003c\/strong\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003eRoll Center Height: 2.16″ \u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCamber Gain: 1.07° per inch of compression\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCaster: 7°\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAnti-Dive: 20%\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSteering Angle: 26-29 degrees\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRear Suspension (Anti-Squat %):\u003c\/strong\u003e\u003cbr\u003e\n\u003cul\u003e\n\u003cli\u003eRoll Center Height: 13”’\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAnti-Swat Adjustment Range – 55%-175%\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eYou can view and download the assembly instruction booklet \u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003ca href=\"https:\/\/southwestspeed.com\/cdn\/shop\/files\/RDT_11243796Instructions.pdf\" style=\"color: rgb(255, 42, 0);\"\u003ehere.\u003c\/a\u003e\u003c\/span\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"RDT 11243798","offers":[{"title":"Default Title","offer_id":51760638296345,"sku":"RDT 11243798","price":19500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/0477\/6985\/files\/RDT_11243798.jpg?v=1767034314","url":"https:\/\/southwestspeed.com\/products\/rdt-11243798","provider":"Southwest Speed","version":"1.0","type":"link"}