The Most Complete Subframe System - Chris Alston's Chassisworks

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Billet Steel A-Arm Mounts with Pivot PinsBillet steel, CNC machining allows us to create A-armmounts with specific areas of increased thickness foradded strength not possible with other designs. Unlikeslot- or eccentric-mounted A-arms, Chassisworks’exclusive fixed-axis pivot-pin design eliminates thepossibility of shifting pivot shafts, provides greater shearstrength, and increases bending resistance. Threadedbosses at each end of the mount enable use of setscrews to lock A-arm pivot pins into position. Usingslot-tab technology, billet upper A-arm mounts snapand weld into place providing anti-dive geometry andcapping the open ends of the 4 x 2” crossmember tobetter distribute forces, decrease flex throughout thestructure, and provide a solid location for the uppershock mount. The lower A-arm mount is a single-piececomponent passing directly through the crossmemberand supported by the anti-roll-bar mounting plate todistribute bending forces throughout the crossmember.This increases rigidity and geometric accuracy of thecontrol arm for more predictable handling.Billet UpperA-Arm MountSingle-PieceBillet LowerA-Arm MountAnit-Roll BarMount PlateOne-Piece Clevis Shock MountOur g-Machine upper shock mount has a 1-5/16”-wideformed clevis that accepts 1/2” mounting hardware andprovides adequate clearance for use with VariShock coiloveror air-spring suspension. Our one-piece design hasan integrated gusset across the top and sides to bridge the billet upper A-arm mount to the 4 x 2”crossmember. This provides a larger, more stable mount base, with better appearance than weldeddesigns, and eliminates bending fatigue possible with common sheet metal- or tubing-mounteddesigns of other manufacturers.Billet Rack Mounts and ClampsBillet steel rack mounts using dual slottabtechnology form an interlockingbridge between the 4 x 2” crossmemberand billet aluminum rack brackets.The angled mount fixture welds to a4 x 2” crossmember, attaching to therack body at the widest points. Thisallows positioning of the rack abovethe bottom of the crossmember, safefrom road hazards. Billet aluminum rackclamps attach into interlocking groovesin the rack gearbox, preventing flex inhard cornering unlike rubber-mounteddesigns. This also allows rotation ofthe input shaft to aid steering-shaftinstallation around engine obstacles andthe exhaust system.Slot-Tab Technology, Interlocking JointPinion Rotated UpPinion Rotated Down6
Subframe Installation FeaturesDetailed Installation GuideIncluded with each g-Machine Chevy II subframe is apainstakingly detailed 126-page installation guide. Theguide features over 300 individual photos completelyillustrating the installation process at each and everystep. Beginning with clip assembly, continuing onwith removal of factory components, and endingwith final installation, our comprehensive guidemakes installation and setup an uncomplicated task.Alignment ShimsTo simplify subframe alignment in relation to the body,the OEM shim alignment method is also used on theg-Machine subframe. Note that not all replacementsubframes on the market have this important feature. Aset of CNC-laser-cut alignment shims is supplied to makesubframe installation simple and highly accurate.Engine-Mount OptionsMultiple engine-mount-bracket options enable truebolt-in installation for nearly any drivetrain. Standardside-mount brackets for small-block, big-block,and LS-style V8 engines are available, as well assmall- or big-block motor plates and mid platesfor more serious performance applications.To positively locate the engine, driver-sidemotor-plate, mid-plate, and side-mountframe brackets have correct-sized bolt holes.Passenger-side mounts use slightly oversizedslots to facilitate installations with minor chassisvariances. Subframes ship with all mountsfactory-welded and ready for installation.Frame Engine-Mount OptionsNo Engine Brackets InstalledSide Engine Brackets OnlySmall-Block & LS Motor-Plate Brackets OnlyBig-Block Motor-Plate Brackets OnlySide Engine Brackets with Small-Block Motor PlateSide Engine Brackets with Big-Block Motor PlateSmall-Block Motor Plate with Big-Block Motor PlateSplined Anti-roll Bar Plates with Side Engine MountsClutch Pivot-Shaft Bracket MountA factory-welded bracket along the driversideframe rail is used to mount the OEMouter clutch pivot-shaft bracket in thefactory position.Clutch Pivot-Shaft Bracket MountSingle-Box ShipmentThe Chevy II g-Machine system components areindividually packed to prevent damage duringshipping and to ease part identification duringassembly. All boxed components are then loadedinto a heavy-duty, pallet-mounted box and truckfreighteddirectly to your door — avoiding confusingmultiple-package paperwork and lost shipments.7
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The Most Complete Subframe System - Chris Alston's Chassisworks

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