{"product_id":"ridetech-momentum-chassis-1968-1972-gm-a-body","title":"Ridetech MOMENTUM Chassis | 1968-1972 GM A-Body","description":"\u003cp\u003e\u003cspan\u003eFull 1968-1972 GM A-Body Replacement Chassis System. Includes chassis, front sway bar, upper\/lower control arms, ball joints, hub OR pin spindles, rear 4-link, 9” rear axle housing, install hardware. Sold separately: 3rd member, steering rack, coil-overs or air ride, rear sway bar.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eRidetech Momentum Series Chassis\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eFor 1968–1972 GM A-Body (Chevelle, GTO, 442, Skylark)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eDESCRIPTION: \u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eFree From Factory Limitations!\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor nearly 30 years, Ridetech has pushed the boundaries of suspension performance — but always within the constraints of factory chassis geometry. Ridetech’s \u003cstrong\u003eMomentum Chassis Series\u003c\/strong\u003e changes all that.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\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 with the adjustability and strength builders demand.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eWheel\/Tire Clearance: \u003c\/strong\u003eFitting larger wheels and tires on muscle cars has been popular for decades now. The MOMENTUM series chassis is designed to allow larger wheel and tire fitment beyond factory chassis limitations, reducing the potential for tire and frame contact on the inside on wider setups and negatively impacting turning radius. Ridetech engineers found their best combination with a 18×9” wheel and 6” backspace which allowed for installation of a 275\/40\/18 Falken RT660 tire with no lock-to-lock steering issues on factory inner fender liners. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSuspension Geometry:\u003c\/strong\u003e While suspension geometry improvements can be had with changes to ball joint locations and control arm design, the original design \u003cem\u003estill\u003c\/em\u003e limits any changes outside of the factory pickup points. From the ground up the MOMENTUM chassis design allowed us to control exactly where we wanted those pickup points to be from both enthusiast and modern tech perspectives. This development yielded more desirable camber gain, caster, roll center, and Ackermann, translating to improved performance and ride quality.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eRobust tubular upper and lower control arms attach to high-quality ball joints before affixing to either Ridetech’s Tall AFX hub or pin spindles. We also integrated our modular suspension design approach that accommodates both Ridetech coil-overs or Shockwave® air suspension.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eCoil-overs or Air: \u003c\/strong\u003eWhether you select a static (coil-over) or dynamic (air suspension) drop, Fox Factory monotube shocks can be had in single, rebound adjustable (HQ) or triple adjustable (TQ) iterations, keeping your front tires glued to the ground whether you’re on the street or the track. Impact forged aluminum shock bodies provide superior strength while their monotube design offers superior fade free performance. The larger 1.834’’ piston provides outstanding ride quality and 24-positions of rebound adjustability allow fine-tuning the responsiveness of each corner of your ride.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eSteering Improvements:\u003c\/strong\u003e Let’s face it. No one really wants their recent muscle car purchase to handle just like it did back when it was new. Modern rack and pinion steering is vastly superior to vintage recirculating ball-style steering systems, which is why manufacturers have long-since adopted rack-and-pinion steering. Likewise, the MOMENTUM chassis design incorporates the commonly available 99-04 Ford Mustang steering rack. Traditional steering that is old or worn-out factory-style steering components often feels disconnected or wanders under normal operation, whereas rack-and-pinion steering produces a much more direct and positive steering feel and response, leading to improved confidence behind the wheel. We carry the quick ratio PSC steering rack 99-04 variant, however standard versions can be ordered through auto parts retailers or other performance brands. We used PSC Rack Part # 11009556.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eDrivetrain Options: \u003c\/strong\u003eWe recognize that pulling the trigger on a chassis is a decision not taken lightly. With that in mind, the MOMENTUM chassis series accommodates a host of popular engine and transmission combinations that will satisfy a wide range of builders and customers thanks to an array of engine mount plates and an adjustable universal transmission crossmember.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eEngines:\u003c\/strong\u003e Whether you’re looking to install the latest in direct-injection GM LT powerplants, fancy the simplicity and power of the LS family of engines, or want to kick it old-school with a conventional small or big block Chevy, our engine mount plates have you covered.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eTransmissions:\u003c\/strong\u003e Our adjustable transmission crossmember will allow the shifting your own gears or let the balls and valves or a computer sort out when to shift. Popular manual transmission like the Tremec T-56\/TKX, or classic Muncie and Saginaws are compatible as are popular automatics like the TH350\/400\/700R4, or 4L60\/80E family. Not an exhaustive list*\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eRear Axle Housings: \u003c\/strong\u003eRidetech’s own Ford 9” rear axle housings are a staple of the MOMENTUM chassis and ensure that you’re able to put the power down, no matter how you’re using your classic A-Body. Both standard and narrowed axle widths are available. We also carry popular third members to complete your drivetrain.  \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eBrakes:\u003c\/strong\u003e Whether you’re running a stock ‘pin style’ or later model ‘hub’ style variant spindle, Ridetech has you covered. Ridetech conveniently offers Wilwood and some Baer brakes solutions as a complement to applications we support, so you can successfully shop for your suspension and brake solutions in one place. Aftermarket pin spindle brakes are a great way to improve braking performance, but if you’re all about the latest in available braking technology our AFX hub spindles accommodate C5\/C6\/C7 Corvette hubs, which allow the installation of factory or aftermarket C5\/C6 brake packages.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eFEATURES \u0026amp; BENEFITS:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e🔑 Key Benefits\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003cstrong\u003eTrue Performance Geometry\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eReengineered suspension pickup points improve camber gain, caster, roll center, and Ackermann.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eRide Height Adjustable \u003cbr\u003e\u003c\/strong\u003eLike existing Ridetech A-body systems this chassis lowers vehicle ride height roughly 2’’ from stock. Can be adjusted to suit desired height.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003cstrong\u003eImproved Tire Clearance\u003c\/strong\u003e\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eFRONT: Up to 275\/40R18 on 18×9″ (6″ BS) | Larger fitments possible when using steering rack limiters \u0026amp; modified inner fenders.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eREAR: 295\/40R18 on 18×11″ (6.5″ BS) | Mini-tubs can allow up to 335mm rear tires.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003cstrong\u003eModular Suspension Compatibility\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eChoose Ridetech\/Fox Factory Coil-overs or Shockwave® Air Suspension. Both bolt directly in.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003cstrong\u003eSteering Modernization \u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eRack-\u0026amp;-pinion steering improves steering feel and feedback. Uses common 1999–2004 Mustang rack (PSC #11009556 recommended). (Sold separately. Available \u003cstrong\u003eHERE\u003c\/strong\u003e)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003cb\u003eRobust Driveline Foundation\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eFabricated Ford 9” Rear Axle Housing available in both standard and narrow widths to accommodate multiple build styles. \u003ca href=\"https:\/\/ridetech.com\/product-category\/products\/brakes_rear_ends\/ridetech-rear-axles\/\"\u003eThird members with popular rear end ratios\u003c\/a\u003e are also available. \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003cstrong\u003eEngine \u0026amp; Transmission Flexibility\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eAccommodates small\/big block Chevy, LS, \u0026amp; Gen V LT engines. Adjustable transmission crossmember accepts popular popular manuals \u0026amp; automatics\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e(T56\/TKX) and automatics (TH350, 700R4, 4L80E). This is NOT an exhaustive list.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003cstrong\u003eBraking Options\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eChoose from:\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePin spindles (stock-style \u0026amp; aftermarket Wilwood\/Baer kits)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHub spindles (C5\/C6\/C7 brakes with factory or aftermarket calipers)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e🛠 Chassis Features\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eTubular upper \u0026amp; lower control arms with Delrin bushings | Polyurethane body bushings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHigh-quality ball joints, billet sway bar mounts\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAccepts OE-style or EFI-ready fuel tanks (with 45° corner notch) or custom fuel cells\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRecommended \u003ci\u003eTanks Inc\u003c\/i\u003e. part numbers: \u003cb\u003eTM34EN-T\u003c\/b\u003e (68-69), \u003cb\u003eTM34 BN-T\u003c\/b\u003e (70), \u003cb\u003eTM34UN-T\u003c\/b\u003e (71-72) \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFrame channels for clean fuel \u0026amp; brake line routing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIncluded 3-joint steering bearing mount for better header clearance (ideal for big block engines)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eImproved header clearance \u0026amp; exhaust routing allow for a variety exhaust solutions\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDurable powder coat finish\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eNo cutting or floor pan modifications required\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDesigned for use with factory parking brake cable\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eLarge 1.5” front sway bar improves weight transfer and reduces body roll. \u003cspan class=\"TextRun SCXW153969504 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"\u003e\u003cspan class=\"NormalTextRun SCXW153969504 BCX0\" data-ccp-parastyle=\"List Bullet\"\u003eF\u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW153969504 BCX0\" data-ccp-parastyle=\"List Bullet\"\u003eeatures billet aluminum mounts, low friction bushings\u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW153969504 BCX0\" data-ccp-parastyle=\"List Bullet\"\u003e,\u003c\/span\u003e\u003cspan class=\"NormalTextRun SCXW153969504 BCX0\" data-ccp-parastyle=\"List Bullet\"\u003e and ball joint style linkage. \u003c\/span\u003e\u003c\/span\u003eBar rate = \u003cspan class=\"TextRun SCXW153969504 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"\u003e\u003cspan class=\"NormalTextRun SCXW153969504 BCX0\" data-ccp-parastyle=\"List Bullet\"\u003e1,000lb\/in rate\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAlso available: \u003cspan class=\"TextRun SCXW152040987 BCX0\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"auto\"\u003e\u003cspan class=\"NormalTextRun SCXW152040987 BCX0\" data-ccp-parastyle=\"List Bullet\"\u003eOptional adjustable rear sway bar. (350\/475\/650 lb\/in rates). Includes billet aluminum mounts, low friction bushings, \u0026amp; ball joint style linkage. \u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"EOP SCXW152040987 BCX0\" data-ccp-props=\"{}\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e📊 Suspension Geometry\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eFront Suspension:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eRoll Center Height: 2.16″\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCamber Gain: 1.07° per inch\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCaster: 7°\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAnti-Dive: 20%\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAckermann: 30%\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMotion Ratio: 0.632\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSteering Angle: 30° (adjustable with rack stops)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eRear Suspension (Anti-Squat %):\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cem\u003eUpper Bars – Lower Position:\u003c\/em\u003e Adjustment range: 105–175%\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cem\u003eUpper Bars – Upper Position:\u003c\/em\u003e Adjustment range: 55–90%\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cem\u003eAdjustable via lower bar mounting location\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e🔧 Vehicle Compatibility\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1968–1972 Chevelle\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1968–1972 GTO, Tempest, LeMans\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1968–1972 Cutlass, 442, F85\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1968–1972 Skylark, GS\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eDoes NOT fit:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eA-body Wagons or 4-doors\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1969–1972 Grand Prix\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1970–1972 Monte Carlo\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEl Camino \/ GMC Sprint\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e🚚 Shipping Information\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis product must be picked up in Jasper, IN, or shipped via truck freight.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eA flat crating fee of $595 will be applied to each order that is shipping via freight (local pickup option can waive crating fee if desire to pickup without crate).A Ridetech representative will be in touch for domestic or international orders. Additional freight charges will apply. \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003cstrong\u003eTo schedule local pickup:\u003c\/strong\u003e email sales@ridetech.com and we’ll contact you within 48 hours.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Ridetech","offers":[{"title":"Default Title","offer_id":52035629711678,"sku":null,"price":19000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0672\/8997\/3054\/files\/IMG-3734.jpg?v=1754064943","url":"https:\/\/stpaulspeed.com\/products\/ridetech-momentum-chassis-1968-1972-gm-a-body","provider":"St.Paul Speed \u0026 Performance","version":"1.0","type":"link"}