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Freightliner Classic Frame & Chassis

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  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • 24 Inch Stainless Steel Coffin Style Air Line Box Kit With Two 7-Way Plugs by CSM

    24 Inch Stainless Steel Coffin Style Air Line Box Kit With Two 7-Way Plugs by CSM

    CHROME SHOP MAFIA

    $479.99
    24 Inch SS 18 Inch Coffin Style Air Line Box Kit With Air & Electrical Fittings By Chrome Shop Mafia* High Quality Air Line Box Kit* Includes:  - (2) 7-Way Plugs  - (2) Bulkhead Fittings  - (2) Male...
    09-0504002K01
    SKU:
    09-0504002K01
    Material Options:
    Stainless Steel
    Length Options:
    24 Inch
    Truck Class:
    Heavy Duty
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $479.99
    Qty in Cart: 0
    Price:
    $479.99
    Subtotal:
  • 18 Inch Stainless Steel Coffin Style Air Line Box Kit With 7-Way Plugs by CSM

    18 Inch Stainless Steel Coffin Style Air Line Box Kit With 7-Way Plugs by CSM

    CHROME SHOP MAFIA

    $481.99
    18 Inch SS 18 Inch Coffin Style Air Line Box Kit With Air & Electrical Fittings By Chrome Shop MafiaNeed a sleek and durable solution for your truck's deck plate? Check out the 18 Inch Air Line Box...
    09-0504001K01
    SKU:
    09-0504001K01
    Material Options:
    Stainless Steel
    Truck Class:
    Heavy Duty
    Product Type:
    Frame & Chassis
    Length Options:
    18 Inch
    Make:
    Universal Items
    $481.99
    Qty in Cart: 0
    Price:
    $481.99
    Subtotal:
  • SS Frame Mount Steps 12 Inch

    SS Frame Mount Steps 12 Inch

    VALLEY CHROME PLATING

    $213.99
    12 Inch SS Steps With Chrome Steel Sides By Valley ChromeAccess the frame area of your truck with ease using 12-inch truck frame steps! Simple to install and designed for practicality, these steps...
    09-050515
    SKU:
    09-050515
    Length Options:
    12 Inch
    Material Options:
    Stainless Steel
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $213.99
    Qty in Cart: 0
    Price:
    $213.99
    Subtotal:
  • Diamond Plated Aluminum Step Box With Gaiter Door & Air Shock By Sturdy-Lite

    Diamond Plated Aluminum Step Box With Gaiter Door & Air Shock By Sturdy-Lite

    STURDY-LITE

    $751.99
    Choose Option(s) to see description.Sturdy-Lite 18 Inch Diamond Plated Aluminum Step Box With Gator Door & Air ShockSturdy-Lite 18 Inch Diamond Plated Aluminum Step Box* High Quality Step Box* 18...
    PPR_298998
    SKU:
    PPR_298998
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $751.99
    Qty in Cart: 0
    Price:
    $751.99
    Subtotal:
  • Leaf Spring Repair Plates With No Center Hole

    Leaf Spring Repair Plates With No Center Hole

    AFTERMARKET

    $110.99 - $127.99
    Choose Option(s) to see description.Leaf Spring Repair Plate 2.76 X 0.472 X 66 Inch OAL W/ 6.5 Inch ArchSpring Steel Repair Plate With No Center Hole* High Quality Repair Plate* Dimensions:  - 2.75...
    PPR_298959
    SKU:
    PPR_298959
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $110.99 - $127.99
    Qty in Cart: 0
    Price:
    $110.99 - $127.99
    Subtotal:
  • Trunnion Bushing 3.5 ID X 4.5 OD X 3.5 Inch

    Trunnion Bushing 3.5 ID X 4.5 OD X 3.5 Inch

    AUTOMANN USA

    $13.98
    Trunnion Bushing E1334, R301334, 91008040, TA802A, And 15875* High Quality Trunnion Bushing* Dimensions:  - 3.5 Inch ID   - 4.5 Inch OD   - 3.5 Inch Length* Sold Individually* Warranty On Trunnion...
    29-05250050
    SKU:
    29-05250050
    Truck Class:
    Heavy Duty
    Diameter Options:
    3 1/2 Inch
    Material Options:
    Plastic/Poly
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $13.98
    Qty in Cart: 0
    Price:
    $13.98
    Subtotal:
  • Walking Beam - 54 Inch Axle Spread 40K Low Mount For Chalmers Rear 800

    Walking Beam - 54 Inch Axle Spread 40K Low Mount For Chalmers Rear 800

    AFTERMARKET

    $1,283.99
    Chalmers Walking Beam Replaces Parts 800079. 3578486C1Maximize suspension reliability with this premium Walking Beam for Chalmers Rear 800, designed for a 54-inch axle spread and built to handle 40K...
    29-05100300
    SKU:
    29-05100300
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $1,283.99
    Qty in Cart: 0
    Price:
    $1,283.99
    Subtotal:
  • 5 3/4 Inch End Beam Bushing Assembly For Hendrickson 480-520 Series

    5 3/4 Inch End Beam Bushing Assembly For Hendrickson 480-520 Series

    AFTERMARKET

    $180.99
    Hendrickson End Beam Bushing Assembly* High Quality End Beam Bushing Assembly* Consists Of   - (1) End Beam Bushing   - (1) Adapter Kit* 5 3/4 Inch* Made In USA* Sold Individually* Warranty On End...
    29-05100284
    SKU:
    29-05100284
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $180.99
    Qty in Cart: 0
    Price:
    $180.99
    Subtotal:
  • 5 3/4 Inch Poly End Beam Bushing Assembly For Hendrickson 340-460 Series

    5 3/4 Inch Poly End Beam Bushing Assembly For Hendrickson 340-460 Series

    AFTERMARKET

    $201.99
    OEM Style Hendrickson End Beam Bushing Assembly* High Quality End Beam Bushing Assembly* 5-3/4 Inch Bushing* Sold Individually* Warranty On End Beam Bushing Assemblies Against Defects In Workmanship...
    29-05100260
    SKU:
    29-05100260
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $201.99
    Qty in Cart: 0
    Price:
    $201.99
    Subtotal:
  • Poly V Steer Bushing 15 ID X 2.5 OD X 3.25 Inch OAL

    Poly V Steer Bushing 15 ID X 2.5 OD X 3.25 Inch OAL

    AFTERMARKET

    $65.99
    V Steer Bushing Replaces 90008203* High Quality V Steer Bushing* Poly* Dimensions:  - 1.5 Inch ID   - 2.5 Inch OD   - 3.25 Inch Overall Length* Sold Individually* Warranty On V Steer Bushings Against...
    29-05250049
    SKU:
    29-05250049
    Material Options:
    Plastic/Poly
    Diameter Options:
    1 1/2 Inch
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $65.99
    Qty in Cart: 0
    Price:
    $65.99
    Subtotal:
  • Walking Beam - 54 Inch Axle Spread 46 K High Mount For Chalmers Rear 800

    Walking Beam - 54 Inch Axle Spread 46 K High Mount For Chalmers Rear 800

    AFTERMARKET

    $1,417.99
    Chalmers Walking Beam Replaces 800061. 1515961C1. 351014408* High Quality Walking Beam Chalmers* 59 Inch Overall Length* 16.25 Inch C To C* Made In USA* Sold Individually* Warranty On Walking Beam...
    29-05100296
    SKU:
    29-05100296
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $1,417.99
    Qty in Cart: 0
    Price:
    $1,417.99
    Subtotal:
  • 5 3/4 Inch End Beam Bushing Assembly For Hendrickson 463 and 503 Series

    5 3/4 Inch End Beam Bushing Assembly For Hendrickson 463 and 503 Series

    AFTERMARKET

    $170.99
    End Beam Bushing Assembly Hendrickson* High Quality End Beam Bushing Assembly* Consists Of   - (1) End Beam Bushing   - (1) Adapter Kit* 5 3/4 Inch* Made In USA* Sold Individually* Warranty On End...
    29-05100283
    SKU:
    29-05100283
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $170.99
    Qty in Cart: 0
    Price:
    $170.99
    Subtotal:
  • Walking Beam - 60 Inch Axle Spread 46 K Low Mount - 800083 For Chalmers Rear 800

    Walking Beam - 60 Inch Axle Spread 46 K Low Mount - 800083 For Chalmers Rear 800

    AFTERMARKET

    $1,577.99
    Chalmers Walking Beam Replaces Part 800083* High Quality Walking Beam* 65 Inch Overall Length* 15.75 Inch C To C* Sold Individually* Warranty On Walking Beams Against Defects In Workmanship &...
    29-05100301
    SKU:
    29-05100301
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $1,577.99
    Qty in Cart: 0
    Price:
    $1,577.99
    Subtotal:
  • Walking Beam - 54 Inch Axle Spread 46 K Low Mount - 800087 For Chalmers Rear 800

    Walking Beam - 54 Inch Axle Spread 46 K Low Mount - 800087 For Chalmers Rear 800

    AFTERMARKET

    $1,417.99
    Chalmers Walking Beam Replaces Part 800087* High Quality Walking Beam Chalmers* 59 Inch Overall Length* 15.75 Inch C To C* 46K Low Mount* Sold Individually* Warranty On Walking Beam Chalmers Against...
    29-05100302
    SKU:
    29-05100302
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $1,417.99
    Qty in Cart: 0
    Price:
    $1,417.99
    Subtotal:
  • 5 3/4 Inch Poly Rear End Beam Bushing Assembly For Hendrickson 340-460 Series

    5 3/4 Inch Poly Rear End Beam Bushing Assembly For Hendrickson 340-460 Series

    AFTERMARKET

    $200.99
    Hendrickson 5 3/4 Inch Poly End Beam Bushing Assembly* High Quality End Beam Bushing Assembly* Includes:  - (1) End Beam Bushing  - (1) Adapter Kit* Made Of Polycarbonate * Bushing Dimensions:  -...
    29-05100259
    SKU:
    29-05100259
    Material Options:
    Plastic/Poly
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $200.99
    Qty in Cart: 0
    Price:
    $200.99
    Subtotal:
  • 3 Inch Poly Rear Silent Block Spring Bushing Replaces 6803220150 For Flex Air Models, Spring Eye

    3 Inch Poly Rear Silent Block Spring Bushing Replaces 6803220150 For Flex Air Models, Spring Eye

    AFTERMARKET

    $88.99
    Poly Silent Block Bushing Replaces 51880, 51880-000, C136002, C13-6002, K2215089, K221-5089Restore suspension efficiency with this 3 Inch Poly Rear Silent Block Spring Bushing. Designed for Flex Air...
    29-05100233
    SKU:
    29-05100233
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $88.99
    Qty in Cart: 0
    Price:
    $88.99
    Subtotal:
  • Walking Beam - 54 Inch Axle Spread 40 K High Mount For Chalmers Rear 800

    Walking Beam - 54 Inch Axle Spread 40 K High Mount For Chalmers Rear 800

    AFTERMARKET

    $1,301.99
    Chalmers Walking Beam Replaces 800103 And 800061The Walking Beam for the Chalmers 800 rear suspension features a 54-inch axle spread and is compatible with the M18008 plate. This combination ensures...
    29-05100291
    SKU:
    29-05100291
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $1,301.99
    Qty in Cart: 0
    Price:
    $1,301.99
    Subtotal:
  • Walking Beam - 54 Inch Axle Spread 40 K Low Mount - 04S00005 For Chalmers Rear 800

    Walking Beam - 54 Inch Axle Spread 40 K Low Mount - 04S00005 For Chalmers Rear 800

    AFTERMARKET

    $1,301.99
    Chalmers Walking Beam Replaces Part 04S00005* High Quality Walking Beam Chalmers* 59 Inch Overall Length* 15.75 Inch C To C* Made In USA* Sold Individually* Warranty On Walking Beam Chalmers Against...
    29-05100293
    SKU:
    29-05100293
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $1,301.99
    Qty in Cart: 0
    Price:
    $1,301.99
    Subtotal:
  • 4.615 Inch Poly Equalizer Bushing For Hendrickson Rear

    4.615 Inch Poly Equalizer Bushing For Hendrickson Rear

    AFTERMARKET

    $88.99
    Equalizer Bushing Replaces 48932000* High Quality Equalizer* Poly* Dimensions:  - 4.615 Inch Length  - 2.75 Inch O.D.  - 0.875 Inch I.D.* Made In USA* Sold Individually* Warranty On Equalizers...
    29-05100222
    SKU:
    29-05100222
    Material Options:
    Steel
    Truck Class:
    Heavy Duty
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $88.99
    Qty in Cart: 0
    Price:
    $88.99
    Subtotal:
  • 5 1/4 Inch End Beam Bushing Assembly For Hendrickson 340 Series

    5 1/4 Inch End Beam Bushing Assembly For Hendrickson 340 Series

    AFTERMARKET

    $124.99
    End Beam Bushing Assembly* High Quality End Beam Bushing Assembly* Consists Of   - (1) End Beam Bushing   - (1) Adapter Kit* 5 1/4 Inch* Made In USA* Sold Individually* Warranty On End Beam Bushing...
    29-05100281
    SKU:
    29-05100281
    Truck Class:
    Heavy Duty
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $124.99
    Qty in Cart: 0
    Price:
    $124.99
    Subtotal:
  • Total: items /

Adding your products to cart

Shop Freightliner Classic Suspension and Chassis Parts

When it comes to finding the right Freightliner Classic XL parts to fix your suspension and ride height issues, 4 State Trucks stocks an enormous array of aftermarket replacement options. Whether you are addressing structural fatigue with heavy-duty frame rails and crossmembers or overhauling your front-end geometry with SBA air ride kits and leaf springs, we have the commercial-grade components required for the job. Restore your DOT compliance with high-performance shock absorbers and air valves, or upgrade your chassis utility with secure deck plates and frame steps. Our inventory includes model-specific suspension upgrade components and frame-chassis hardware parts. As you upgrade your frame-rail components, consider adding additional make/model-specific parts: Freightliner Classic fuel tanks, Freightliner classic visor or a new Freightliner Classic battery box. Find everything you need to refurbish and repair your big rig.

Frequently Asked Questions About Freightliner Classic Frame & Chassis

What are the differences between steel and aluminum bumpers for my Freightliner Classic?

Steel bumpers typically weigh 150-200 lbs and offer superior impact resistance and durability, making them ideal for heavy-duty applications and harsh weather conditions. They're generally 30-40% less expensive than aluminum but require regular maintenance to prevent rust. Aluminum bumpers weigh about 60-80 lbs, won't rust, and provide better fuel economy due to weight savings. However, they're more prone to denting and cost significantly more upfront. Most owner-operators choose steel for work trucks and aluminum for show trucks or when weight restrictions are critical.

Will aftermarket bumpers fit my specific Freightliner Classic model year?

Most aftermarket bumpers are designed to fit Freightliner Classic models from 1990-2007, but there are important variations. Pre-2000 models often have different mounting hole patterns and may require adapter brackets. The FLD 112/120 and Classic XL have wider frames that need specific bumper widths (typically 18" or 20" options). Always verify your frame rail width and mounting hole spacing before ordering. Look for bumpers that specify compatibility with your exact model designation (FLC, FLD, or Classic XL) and year range to ensure proper fitment without modifications.

What tools and skills do I need to install a new bumper myself?

Installing a Freightliner Classic bumper requires basic mechanical skills and these tools: 3/4" and 7/8" sockets and wrenches, torque wrench capable of 150-200 ft-lbs, floor jack or forklift to support the bumper weight, and safety equipment. The process typically takes 2-4 hours with a helper. Key challenges include aligning heavy bumpers with mounting holes and achieving proper torque specs (usually 150-175 ft-lbs for frame bolts). Many customers report difficulty with rusted or seized bolts on older trucks. Having penetrating oil and possibly a torch available is recommended. Professional installation typically costs $200-400 if you prefer to avoid these challenges.

What finish options hold up best against road salt and weather?

Chrome-plated steel remains the most popular choice, offering excellent appearance when maintained but requiring regular polishing and can show pitting after 3-5 years in salt states. Powder-coated finishes in black or custom colors provide superior corrosion resistance and typically last 5-7 years without significant maintenance. Polished aluminum naturally resists corrosion but shows water spots and requires frequent cleaning. For maximum durability in harsh conditions, consider bumpers with e-coating underneath chrome plating or opt for heavy-duty powder coating with a clear protective topcoat. Stainless steel options are available but typically cost 2-3 times more than standard chrome.

Can I mount accessories like light bars or air hoses to aftermarket bumpers?

Most quality aftermarket bumpers come pre-drilled for standard accessories or include mounting provisions. Common mounting points include centered holes for light bars (typically supporting up to 50" bars), side mounting tabs for work lights or air hose hangers, and tow hook or shackle mounting points rated for 20,000-30,000 lbs. When selecting a bumper, verify it has the specific mounting features you need - not all bumpers include fog light provisions or airline holes. Adding holes after purchase is possible but may void warranties and compromise chrome plating. Many bumpers also offer optional bolt-on accessories like step plates, license plate holders, and bumper guards that don't require drilling.


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