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Freightliner Classic Frame & Chassis

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  • Qty in Cart
  • Quantity
  • Price
  • Subtotal
  • Fifth Wheel Mounting Rail 55 X 3 X 4 Inch

    Fifth Wheel Mounting Rail 55 X 3 X 4 Inch

    OPP - ORIGINAL PARTS PROGRAM

    $326.99
    55 X 3 X 4 Inch Fifth Wheel Mounting Rail* High Quality Fifth Wheel Mounting Rail* Includes:  - (2) 5th Wheel Mounting Angle Brackets* Dimensions:  - 55 Inch Length  - 3 Inch Width  - 4 Inch Height ...
    29-051100033
    SKU:
    29-051100033
    Product Type:
    Frame & Chassis
    Length Options:
    55 Inch
    Height Options:
    4 Inch
    Width Options:
    3 Inch
    Location:
    Made In USA
    Make:
    Universal Items
    $326.99
    Qty in Cart: 0
    Price:
    $326.99
    Subtotal:
  • Ridewell Bushing Replacement Kit W/ Hardware

    Ridewell Bushing Replacement Kit W/ Hardware

    RIDEWELL

    $276.99
    Bushing Replacement Kit W/ Hardware By Ridewell* High Quality Bushing Replacement Kit* Used For Light Trac Lift Axle Air Suspension (Not Included)* Includes:  - (2) Kits (1 Per Axle)  - Needed...
    29-05100584
    SKU:
    29-05100584
    Product Type:
    Frame & Chassis
    Position:
    Kit Full
    Location:
    Made In USA
    Make:
    Universal Items
    $276.99
    Qty in Cart: 0
    Price:
    $276.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Aluminum Frame Steps 23 Inch W/ 4 Secure Frame Mounting Holes & Width Options

    Aluminum Frame Steps 23 Inch W/ 4 Secure Frame Mounting Holes & Width Options

    ICONIC

    $220.99 - $264.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksAluminum Frame Steps 12 X 23 Inch W/ 4 Secure Frame Mounting Holes12 X 23 Inch Aluminum Frame Steps W/...
    PPR_301290
    SKU:
    PPR_301290
    Material Options:
    Aluminum
    Location:
    Made In USA
    Height Options:
    23 Inch
    Width Options:
    22 Inch
    Product Type:
    Frame & Chassis
    Width Options:
    16 Inch
    Length Options:
    8 3/4 Inch
    Width Options:
    12 Inch
    Make:
    Universal Items
    $220.99 - $264.99
    Qty in Cart: 0
    Price:
    $220.99 - $264.99
    Subtotal:
  • Steel Leaf Spring Suspension 27 Inch Axis 1 & 32 Inch Axis 2 Length

    Steel Leaf Spring Suspension 27 Inch Axis 1 & 32 Inch Axis 2 Length

    DAYTON / DORMAN

    $1,514.99
    Steel Leaf Spring Suspension W/ 5 Leaves & 2 Threaded M32 X 4 Inch Diameter Bushing Pins* High Quality Leaf Spring Suspension* Made Of Steel* Full Taper Front Axle Type* Includes:  - (2) Up Turned...
    29-05090259
    SKU:
    29-05090259
    Material Options:
    Steel
    Product Type:
    Frame & Chassis
    Location:
    Made In USA
    Make:
    Universal Items
    $1,514.99
    Qty in Cart: 0
    Price:
    $1,514.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Zinc Plated Steel Deck Plate Mounting Kit

    Zinc Plated Steel Deck Plate Mounting Kit

    AUTOMANN USA

    $12.99
    Deck Plate Mounting Kit Zinc Plated Steel* High Quality Deck Plate Mounting Kit* Made Of Zinc Plated Steel* Mounting Hardware For Deck Plate * Deck Plate Not Included* Sold Individually* Warranty On...
    09-05030113
    SKU:
    09-05030113
    Product Type:
    Frame & Chassis
    Position:
    Kit Full
    Material Options:
    Steel
    Finish Options:
    Zinc-Plated
    Make:
    Universal Items
    Ready To Ship:
    Yes
    $12.99
    Qty in Cart: 0
    Price:
    $12.99
    Subtotal:
  • Aluminum Deck Plate 9 X 23.5 X 1.25 Inch W/ Mounting Kit & Hardware

    Aluminum Deck Plate 9 X 23.5 X 1.25 Inch W/ Mounting Kit & Hardware

    ICONIC

    $248.99
    9 X 23.5 X 1.25 Inch Aluminum Deck Plate W/ Mounting Kit & Hardware* High Quality Deck Plate* Made Of 1/8 Inch Aluminum* Tread Grip Punched Design* Includes:  - (1) Deck Plate  - Mounting Kit  -...
    09-05030108
    SKU:
    09-05030108
    Location:
    Made In USA
    Width Options:
    32 1/2 Inch
    Position:
    Kit Full
    Height Options:
    1 1/4 Inch
    Finish Options:
    Treaded
    Material Options:
    Aluminum
    Length Options:
    9 Inch
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $248.99
    Qty in Cart: 0
    Price:
    $248.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Yoke Clutch Release Fork 8 Inch Length Replaces 02-09688-000 For 1 Inch X 9 Inch Shaft

    Yoke Clutch Release Fork 8 Inch Length Replaces 02-09688-000 For 1 Inch X 9 Inch Shaft

    AFTERMARKET

    $20.99
    Yoke Clutch Release 7 Inch C To C Bolt Length & 4.895 Inch Inside Ear Length* High Quality Yoke Clutch Release Fork* Use With 1 Inch X 9 Inch Shaft (Not Included)* Dimensions:  - 8 Inch Overall...
    29-07050125
    SKU:
    29-07050125
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $20.99
    Qty in Cart: 0
    Price:
    $20.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Manual Transmission Front Bearing Retainer W/ 6 Mounting Holes Replaces 20550B, 3088-20550

    Manual Transmission Front Bearing Retainer W/ 6 Mounting Holes Replaces 20550B, 3088-20550

    AFTERMARKET

    $23.99
    Flange Mount Manual Transmission Front Bearing Retainer* High Quality Transmission Bearing Retainer* Manual Transmission Front Bearing Cover* (6) Mounting Holes* Flange Mount* Sold Individually*...
    29-07050126
    SKU:
    29-07050126
    Product Type:
    Engine Parts
    Make:
    Universal Items
    $23.99
    Qty in Cart: 0
    Price:
    $23.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Automatic Mack Drive Axles Haldex Type Slack Adjuster W/ 6 Inch 16 Degree Angled Arm Replaces 135.2832

    Automatic Mack Drive Axles Haldex Type Slack Adjuster W/ 6 Inch 16 Degree Angled Arm Replaces 135.2832

    AFTERMARKET

    $78.99
    Automatic Mack Drive Axles Haldex Type Slack Adjuster W/ 1.5 Inch - 28 Spline Diameter Replaces 135.2832* High Quality Slack Adjuster* Automatic, Mack Drive Axles, Haldex Type* 28 Spline Count* 16...
    09-05170517
    SKU:
    09-05170517
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $78.99
    Qty in Cart: 0
    Price:
    $78.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Automatic Gunite Type Slack Adjuster W/ 5.5 Inch Straight Arm Height

    Automatic Gunite Type Slack Adjuster W/ 5.5 Inch Straight Arm Height

    AFTERMARKET

    $78.99
    Automatic Gunite Type Slack Adjuster W/ 1.5 Inch - 28 Spline Diameter* High Quality Slack Adjuster* Automatic Gunite Type* 28 Spline Count* Straight Arm* Adjuster Dimensions:  - 5.5 Inch Arm Height ...
    09-05170516
    SKU:
    09-05170516
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $78.99
    Qty in Cart: 0
    Price:
    $78.99
    Subtotal:
  • FREE SHIPPING
    ABS Hydraulic Motor Kit W/ Hydraulic Pump & Motor Assembly Replaces S21808, S4784079472

    ABS Hydraulic Motor Kit W/ Hydraulic Pump & Motor Assembly Replaces S21808, S4784079472

    AFTERMARKET

    $1,047.99
    Meritor ABS Hydraulic Pump & Motor Assembly Replaces S21808, S4784079472* High Quality ABS Hydraulic Motor Kit* Meritor ABS Hydraulic Pump And Motor Assembly* Used By HABS-E Braking Electronics* Sold...
    09-05170518
    SKU:
    09-05170518
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $1,047.99
    Qty in Cart: 0
    Price:
    $1,047.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Automatic Drive Axle Haldex Type Slack Adjuster W/ 1.5 Inch 28 Spline Diameter Replaces 133.2830

    Automatic Drive Axle Haldex Type Slack Adjuster W/ 1.5 Inch 28 Spline Diameter Replaces 133.2830

    AFTERMARKET

    $78.99
    Automatic Drive Axle Haldex Type Slack Adjuster W/ 34 Degree Angled Arm & 2 Bolt Holes 5 And 6 Inch C To C Arm Height* High Quality Slack Adjuster* Automatic, Drive Axles, Haldex Type* 28 Spline...
    09-05170513
    SKU:
    09-05170513
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $78.99
    Qty in Cart: 0
    Price:
    $78.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Automatic Gunite Type Slack Adjuster W/ 5.5 Inch Straight Arm Height Replaces 138.1010

    Automatic Gunite Type Slack Adjuster W/ 5.5 Inch Straight Arm Height Replaces 138.1010

    AFTERMARKET

    $78.99
    Automatic Gunite Type Slack Adjuster W/ 1.5 Inch - 28 Spline Diameter* High Quality Slack Adjuster* Automatic Gunite Type* 10 Spline Count* Straight Arm* Clevis Kit Gunite Type Included* Adjuster...
    09-05170514
    SKU:
    09-05170514
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $78.99
    Qty in Cart: 0
    Price:
    $78.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Automatic, Drive Axles, Haldex Type Slack Adjuster W/ 5.5 Inch Arm Height & 1.5 Inch 28 Spline Diameter Replaces 135.2835

    Automatic, Drive Axles, Haldex Type Slack Adjuster W/ 5.5 Inch Arm Height & 1.5 Inch 28 Spline Diameter Replaces 135.2835

    AFTERMARKET

    $78.99
    Automatic, Drive Axles, Haldex Type Slack Adjuster W/ 34 Degree Angled Arm* High Quality Slack Adjuster* Automatic, Drive Axles, Haldex Type* 28 Spline Count* 34 Degree Angled Arm* Haldex Type...
    09-05170512
    SKU:
    09-05170512
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $78.99
    Qty in Cart: 0
    Price:
    $78.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Automatic Trailer Axles Haldex Type Slack Adjuster W/ 6 Inch Straight Arm Height Replaces 133.2841

    Automatic Trailer Axles Haldex Type Slack Adjuster W/ 6 Inch Straight Arm Height Replaces 133.2841

    AFTERMARKET

    $78.99
    Automatic Trailer Axles Haldex Type Slack Adjuster W/ 1.5 Inch - 28 Spline Diameter Replaces 133.2841* High Quality Slack Adjuster* Automatic, Trailer Axles, Haldex Type* 28 Spline Count* Straight...
    09-05170515
    SKU:
    09-05170515
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $78.99
    Qty in Cart: 0
    Price:
    $78.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Automatic Bendix Slack Adjuster W/ 28 Spline & Straight Arm Replaces 137.2810

    Automatic Bendix Slack Adjuster W/ 28 Spline & Straight Arm Replaces 137.2810

    AFTERMARKET

    $78.99
    Automatic Bendix Slack Adjuster 5/8 Inch - 28 Cleves Thread, 1 Inch A/F & 1 Inch C To C Pin* High Quality Slack Adjuster* Automatic Bendix Type* 28 Spline Count* Straight Arm* Clevis Kit Bendix Type...
    09-05170511
    SKU:
    09-05170511
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $78.99
    Qty in Cart: 0
    Price:
    $78.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Brass Manual Air Tank Drain Valve W/ 5 Foot Steel Cable & Nitrile Seal Replaces 032082, 032160

    Brass Manual Air Tank Drain Valve W/ 5 Foot Steel Cable & Nitrile Seal Replaces 032082, 032160

    AFTERMARKET

    $7.99
    Brass Manual Air Tank Drain Valve W/ 1/4 Inch NPT Male Thread & 200 PSI Max Working Pressure* High Quality Drain Valve* Manual Air Tank Drain Valve* Pull Cable-Controlled* 1/4 Inch NPT Male Thread*...
    09-05170481
    SKU:
    09-05170481
    Product Type:
    Frame & Chassis
    Make:
    Universal Items
    $7.99
    Qty in Cart: 0
    Price:
    $7.99
    Subtotal:
  • 3 Stacked Trumpet Train Horn Bundle 15.5 X 11.75 X 11.5 Inch W/ Finish Options

    3 Stacked Trumpet Train Horn Bundle 15.5 X 11.75 X 11.5 Inch W/ Finish Options

    UNITED PACIFIC

    $512.99 - $516.99
    Choose Option(s) to see description.Fitment** Universal - Fits Multiple Makes & Models Of TrucksChrome 3 Stacked Trumpet Train Horn Bundle 15.5 X 11.75 X 11.5 InchTrain Horn Bumper Chrome 3 Stacked...
    PPR_301218
    SKU:
    PPR_301218
    Product Type:
    Frame & Chassis
    Height Options:
    11 1/2 Inch
    Material Options:
    Stainless Steel
    Material Options:
    Zinc
    Length Options:
    15 1/2 Inch
    Location:
    Made In USA
    Width Options:
    11 3/4 Inch
    Make:
    Universal Items
    $512.99 - $516.99
    Qty in Cart: 0
    Price:
    $512.99 - $516.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Trailer Connector Plug 7 Blade FM

    Trailer Connector Plug 7 Blade FM

    UNITED PACIFIC

    $11.99
    7 Blade FM Trailer Connector Plug* High Quality Trailer Connector Plug* 7 Blade FM (Vehicle End)* Sold Individually* Warranty On Trailer Connector Plugs Against Defects In Workmanship & Material From...
    09-05500182
    SKU:
    09-05500182
    Product Type:
    Frame & Chassis
    Location:
    Made In USA
    Make:
    Universal Items
    $11.99
    Qty in Cart: 0
    Price:
    $11.99
    Subtotal:
  • Chrome 3 Stacked Trumpet Train Horn Bundle 15 X 9.75 X 12.5 Inch

    Chrome 3 Stacked Trumpet Train Horn Bundle 15 X 9.75 X 12.5 Inch

    UNITED PACIFIC

    $395.99
    Train Horn Bumper Chrome 3 Stacked Trumpet Loud 145 DB* High Quality Train Horn Bundle* Made Of Zinc Alloy* Includes:  - (4) Stacked Trumpets  - (1) Insulator Mounting Pad  - (1) 12V Heavy Duty...
    09-05130212
    SKU:
    09-05130212
    Product Type:
    Frame & Chassis
    Location:
    Made In USA
    Material Options:
    Zinc
    Length Options:
    15 Inch
    Height Options:
    12 1/2 Inch
    Width Options:
    9 3/4 Inch
    Make:
    Universal Items
    $395.99
    Qty in Cart: 0
    Price:
    $395.99
    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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