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Freightliner Classic Frame & Chassis

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  • Price
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  • FREE SHIPPING OVER $249
    Flanged Locking Nut For Pinion RSP40-404

    Flanged Locking Nut For Pinion RSP40-404

    AUTOMANN USA

    $10.20
    Nut Flanged Lock Pinion* High Quality Nut Flanged Lock Output Shaft* Rear Output Shaft For Eaton RSP40-404* Replaces OEM # 127589* Sold Individually* Warranty On Nut Flanged Lock Pinion Against...
    09-05212004
    SKU:
    09-05212004
    Position:
    Rear
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $10.20
    Qty in Cart: 0
    Price:
    $10.20
    Subtotal:
  • Flanged Locking Nut For Rear Output Shaft Replaces 127588

    Flanged Locking Nut For Rear Output Shaft Replaces 127588

    AUTOMANN USA

    $13.38
    Nut Flanged Lock Rear Output* High Quality Nut Flanged Lock Output Shaft* Rear Output Shaft For Eaton DSP40-404* Replaces OEM # 127588* Sold Individually* Warranty On Nut Flanged Lock Output Shaft...
    09-05212003
    SKU:
    09-05212003
    Truck Class:
    Universal
    Position:
    Rear
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $13.38
    Qty in Cart: 0
    Price:
    $13.38
    Subtotal:
  • Oil Seal Rear Output Shaft Replaces 127592

    Oil Seal Rear Output Shaft Replaces 127592

    OPP - ORIGINAL PARTS PROGRAM

    $120.99
    Rear Output Oil Seal For Eaton DSP40-404* High Quality Oil Seal Rear Output Shaft* Replaces OEM # 127592* Sold Individually* Warranty On Output Shaft Against Defects In Workmanship & Material From...
    09-05212002
    SKU:
    09-05212002
    Position:
    Rear
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $120.99
    Qty in Cart: 0
    Price:
    $120.99
    Subtotal:
  • Oil Seal Differential Input Shaft For Eaton DSP & RSP40-404 - Replaces 127591

    Oil Seal Differential Input Shaft For Eaton DSP & RSP40-404 - Replaces 127591

    OPP - ORIGINAL PARTS PROGRAM

    $47.83
    Oil Seal Differential Input Shaft* High Quality Oil Seal Differential Input Shaft* Replaces OEM # 127591* Sold Individually* Warranty On Input Shaft Against Defects In Workmanship & Material From...
    09-05212001
    SKU:
    09-05212001
    Truck Class:
    Universal
    Material Options:
    Aluminum
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $47.83
    Qty in Cart: 0
    Price:
    $47.83
    Subtotal:
  • Cross PTO Style Universal Joint Replaces 2599582C91 For International ProStar, Volvo VNL Gen II, Peterbilt 379

    Cross PTO Style Universal Joint Replaces 2599582C91 For International ProStar, Volvo VNL Gen II, Peterbilt 379

    AUTOMANN USA

    $12.01
    Cross PTO Style Universal Joint Fits International ProStar, Volvo VNL Gen II & Peterbilt 379Enhance PTO reliability with the Cross PTO Style Universal Joint, engineered for International ProStar,...
    09-052100001
    SKU:
    09-052100001
    Length Options:
    10 Inch
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $12.01
    Qty in Cart: 0
    Price:
    $12.01
    Subtotal:
  • Stainless Steel Steerable Lift Axle APSCO Control Panel

    Stainless Steel Steerable Lift Axle APSCO Control Panel

    AUTOMANN USA

    $899.99
    7 X 3 X 5 14 Gauge Stainless Steel APSCO Steer Axle Control Panel* High Quality Control Panel* Silver Finish* 14 Gauge Stainless Steel* Dimensions  - 7 Inch Length  - 3 Inch Width  - 5 Inch Diameter*...
    09-052000002
    SKU:
    09-052000002
    Truck Class:
    Universal
    Diameter Options:
    5 Inch
    Width Options:
    3 Inch
    Length Options:
    7 Inch
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $899.99
    Qty in Cart: 0
    Price:
    $899.99
    Subtotal:
  • Stainless Steel Lift Axle APSCO Control Panel

    Stainless Steel Lift Axle APSCO Control Panel

    AUTOMANN USA

    $662.99
    7 X 3 X 5 14 Gauge Stainless Steel APSCO Lift Axle Control Panel* High Quality Control Panel* Silver Finish* 14 Gauge Stainless Steel* Dimensions  - 7 Inch Length  - 3 Inch Width  - 5 Inch Diameter*...
    09-052000001
    SKU:
    09-052000001
    Diameter Options:
    5 Inch
    Width Options:
    3 Inch
    Length Options:
    7 Inch
    Truck Class:
    Universal
    Material Options:
    Stainless Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $662.99
    Qty in Cart: 0
    Price:
    $662.99
    Subtotal:
  • On Sale
    Limited Quantity Available
    Brake Drum Hub Pilot Balanced Light Weight Replaces GUN3922X, 3922X

    Brake Drum Hub Pilot Balanced Light Weight Replaces GUN3922X, 3922X

    AUTOMANN USA

    Now: $133.69
    Was: $190.99
    Brake Drum Hub Pilot 10 Hole BalancedUpgrade your truck's braking performance with this high-quality Brake Drum Hub Pilot. It features a 16.5-inch brake surface, 10.59-inch depth, and lightweight...
    09-0517306
    SKU:
    09-0517306
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    Now: $133.69
    Was: $190.99
    Qty in Cart: 0
    Price:
    Now: $133.69
    Was: $190.99
    Subtotal:
  • Brake Drum Outboard 16.5 x 7 Inch Light Weight 9006X, 53-123537-002, 89996B

    Brake Drum Outboard 16.5 x 7 Inch Light Weight 9006X, 53-123537-002, 89996B

    AUTOMANN USA

    $282.99
    80000 Series Brake Drum* High quality drum* Steel Shell With Fused GrAY iRON lINER* Brake size: 16.5 x 7 inches* Bolt number: 10* Bolt circle diameter: 11.25 inches* Pilot diameter: 8.78 inches*...
    09-0517303
    SKU:
    09-0517303
    Truck Class:
    Universal
    Make:
    Universal Items
    Material Options:
    Steel
    Product Type:
    Frame & Chassis
    $282.99
    Qty in Cart: 0
    Price:
    $282.99
    Subtotal:
  • Brake Drum 10 Hole Unimount Balanced 16.5 x 7 Inch

    Brake Drum 10 Hole Unimount Balanced 16.5 x 7 Inch

    OPP - ORIGINAL PARTS PROGRAM

    $240.99
    Unimount Balanced Wheel Brake Drum* High Quality Drum* Brake Size: 16.5 x 7 Inches* Bolt Number: 10* Bolt Center Diameter: 7.56 inches* Surface Flat: 7.56 inches* Balanced* Sold Individually*...
    09-0517300
    SKU:
    09-0517300
    Diameter Options:
    16 1/2 Inch
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $240.99
    Qty in Cart: 0
    Price:
    $240.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Automatic Slack Adjuster 1.5 -10 Spline X 6 Inch Straight

    Automatic Slack Adjuster 1.5 -10 Spline X 6 Inch Straight

    AUTOMANN USA

    $81.99
    6 Inch 1.5-10 Spline Air Brake Slack Adjuster StraightThis slack adjuster automatically adjusts the brake gap for a 1.50 inch -10 spline camshaft, with a 5.5 inch arm span and a straight design. No...
    09-0517204
    SKU:
    09-0517204
    Length Options:
    6 Inch
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $81.99
    Qty in Cart: 0
    Price:
    $81.99
    Subtotal:
  • FREE SHIPPING OVER $249
    Automatic Slack Adjuster 1.5 - 28 Spline X 6 Inch Span

    Automatic Slack Adjuster 1.5 - 28 Spline X 6 Inch Span

    BESTFIT TRUCK PARTS

    $71.99
    Auto Meritor Type Slack Adjuster Inch Straight Arm* High Quality Automatic Slack Adjuster* Unhanded* Clevis Kit Meritor Type Bracket Kit Included  - 5/8 Inch - 18 Thread  - (1) 1/2 Inch Pin  - (1)...
    09-0517203
    SKU:
    09-0517203
    Height Options:
    6 Inch
    Truck Class:
    Universal
    Make:
    Universal Items
    Ready To Ship:
    Yes
    Product Type:
    Frame & Chassis
    $71.99
    Qty in Cart: 0
    Price:
    $71.99
    Subtotal:
  • FREE SHIPPING OVER $249
    BESTfit Automatic Slack Adjuster 1.5 - 28 Spline X 5.5 Inch Replaces E11401, E11401A

    BESTfit Automatic Slack Adjuster 1.5 - 28 Spline X 5.5 Inch Replaces E11401, E11401A

    BESTFIT TRUCK PARTS

    $78.99
    Auto Slack Adjuster Merritor Type 5.5 Inch Straight Arm By BESTfitDepend on the BESTfit Automatic Slack Adjuster 1.5 - 28 Spline x 5.5 Inch for precise, reliable brake operation. This high-quality,...
    09-0517201
    SKU:
    09-0517201
    Length Options:
    5 Inch
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $78.99
    Qty in Cart: 0
    Price:
    $78.99
    Subtotal:
  • FREE SHIPPING OVER $249
    BESTfit Automatic Slack Adjuster 1.5 -28 Spline X 5.5 Inch Span For Trailer Axle With 16.5 Inch Brake

    BESTfit Automatic Slack Adjuster 1.5 -28 Spline X 5.5 Inch Span For Trailer Axle With 16.5 Inch Brake

    BESTFIT TRUCK PARTS

    $71.99
    Slack Adjuster For Trailer Axle W/ 16.5 Inch Brake By BESTfitKeep your trailer brakes properly adjusted with this BESTfit Automatic Slack Adjuster. Designed for axles with 16.5-inch brakes, it...
    09-0517200
    SKU:
    09-0517200
    Truck Class:
    Universal
    Length Options:
    5 Inch
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $71.99
    Qty in Cart: 0
    Price:
    $71.99
    Subtotal:
  • 15.0 X 4.0 IN Brake Shoe Set W/ 2 Shores & Hardware

    15.0 X 4.0 IN Brake Shoe Set W/ 2 Shores & Hardware

    AFTERMARKET

    $122.99
    Brake Shoe Set W/ 2 Shores & Hardware* High Quality Brake Shoe Set* Contains: - 2 Shoes - Hardware Kit* 15.0 X 4.0 Inch* Sold As Set* Warranty On Brake Shoe Sets Against Defects In Workmanship &...
    09-0517111
    SKU:
    09-0517111
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    Ready To Ship:
    Yes
    $122.99
    Qty in Cart: 0
    Price:
    $122.99
    Subtotal:
  • 16.5 X 7 Inch Brake Shoe Kit 4709ES Plus

    16.5 X 7 Inch Brake Shoe Kit 4709ES Plus

    AFTERMARKET

    $140.99
    Brake Shoe Kit / No Cores Required* High Quality Brake Shoe Kit * 4709ES Plus* Contains 2 Shoes And 1 Hardware Kit* Shoes Have 23K Standard Lining* Sold As Kit * Warranty On Brake Shoe Kits Against...
    09-0517108
    SKU:
    09-0517108
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $140.99
    Qty in Cart: 0
    Price:
    $140.99
    Subtotal:
  • 16.5 X 7 Inch Brake Shoe Kit 4707Q Plus

    16.5 X 7 Inch Brake Shoe Kit 4707Q Plus

    AUTOMANN USA

    $98.99
    Brake Shoe Kit / No Cores RequiredThis high quality 16.5 X 7 inch brake shoe kit 4707Q plus includes 2 shoes and 1 hardware kit. The shoes have a 23K standard lining and no core is required.* High...
    09-0517107
    SKU:
    09-0517107
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $98.99
    Qty in Cart: 0
    Price:
    $98.99
    Subtotal:
  • 16.5 X 7 Inch Brake Shoe Kit 4515F3 Plus

    16.5 X 7 Inch Brake Shoe Kit 4515F3 Plus

    AUTOMANN USA

    $104.99
    Brake Shoe Kit / No Cores Required* High Quality Brake Shoe Kit * 4515F3 Plus* Contains 2 Shoes And 1 Hardware Kit* Shoes Have 23K Standard Lining* Sold As Kit * Warranty On Brake Shoe Kits Against...
    09-0517106
    SKU:
    09-0517106
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $104.99
    Qty in Cart: 0
    Price:
    $104.99
    Subtotal:
  • 16.5 X 7 Inch Brake Shoe Kit 4515Q Plus

    16.5 X 7 Inch Brake Shoe Kit 4515Q Plus

    AUTOMANN USA

    $89.99
    4515Q+ Brake Shoe Kit / No Cores Required* High Quality Brake Shoe Box Kit* 4515Q Plus* 23K Lbs Fleet Standard Rating* Open Anchor End* Open Roller End* Double Web* Kit Includes:  - (2) Lined Brake...
    09-0517105
    SKU:
    09-0517105
    Truck Class:
    Universal
    Material Options:
    Steel
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    Position:
    Kit Full
    $89.99
    Qty in Cart: 0
    Price:
    $89.99
    Subtotal:
  • TPHD Type 30/30 Piggy Back Brake Chamber With Mounting Clamp & Diaphragm - Long Stroke Sealed Unit

    TPHD Type 30/30 Piggy Back Brake Chamber With Mounting Clamp & Diaphragm - Long Stroke Sealed Unit

    AFTERMARKET

    $110.99
    Double Brake Chamber Type 30/30 Long Stroke - 8.15 Inch Height By TPHDDeliver consistent braking performance with the TPHD Type 30/30 Piggy Back Brake Chamber - Long Stroke Sealed Unit. With a 3...
    09-051703
    SKU:
    09-051703
    Position:
    Rear
    Truck Class:
    Universal
    Make:
    Universal Items
    Product Type:
    Frame & Chassis
    $110.99
    Qty in Cart: 0
    Price:
    $110.99
    Subtotal:
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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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