Best Leaf Spring Bolt Kit for Truck and Trailer Repairs

#1 · Best Overall

1. Opuiue Leaf Spring Kit

• Material Type: Alloy Steel
• Thread Size: 9/16"
• Fastener Size: 9/16" x 4-1/2

Best for: Grade 8 Chevy-GMC replacement.

Why it ranks #1: Six Grade 8 bolts, six lock nuts, and twelve washers suit a complete hardware replacement, with stated fitment for listed Chevrolet and GMC trucks and SUVs.

Grade 8 hardened steel in a 9/16-by-4-1/2-inch size gives this Opuiue kit a defined replacement specification for selected older Chevrolet and GMC trucks and SUVs. Its six-bolt, six-lock-nut, twelve-washer set supplies hardware for a broader rear leaf-spring job than a single-fastener purchase.

The listed 1988–2002 fitment covers C/K 1500, 2500, and 3500 models along with Silverado, Sierra, Suburban, Tahoe, and Yukon applications, helping owners identify the intended vehicle range. Six bolts paired with six lock nuts and twelve washers provide matching hardware in one kit. Grade 8 alloy steel and the specified 9/16-inch thread and 4-1/2-inch length make the fastener dimensions clear for planning a replacement; the listing advises checking make, model, year, and trim.

Skip it if you need hardware for a vehicle outside the listed 1988–2002 Chevrolet and GMC applications; this kit’s fitment range is specific.

This suits owners replacing rear leaf-spring hardware on a listed older Chevrolet or GMC truck or SUV who want a six-bolt set. Check the exact make, model, year, and trim against the stated fitment before choosing it.

Listed on Amazon as: Leaf Spring Bolt Kit 9/16" x 4-1/2" Grade 8 Hardened Steel with 6 Bolts, 6 Lock Nuts & 12 Washers for 1988-2002 Chevrolet/GMC C/K 1500/2500/3500, Silverado, Sierra & More

#2 · Most Washers

2. Generic 30-Piece Kit

• Fastener Size: 9/16" x 4-1/2"

Best for: Extra spring-washer set.

Why it ranks #2: The 9/16-inch-by-4-1/2-inch Grade 8 kit includes six bolts, lock nuts, spring lock washers, and twelve flat washers for listed Chevrolet and GMC models.

Two spring lock washers alongside twelve flat washers distinguish this 30-piece Generic kit from a basic flat-washer set. The added spring washers are stated to help resist vibration, while six 9/16-by-4-1/2-inch Grade 8 bolts target rear leaf-spring positions on listed Chevrolet and GMC vehicles.

The six Grade 8 bolts are paired with six lock nuts, six spring lock washers, and twelve flat washers, giving buyers multiple washer types for the listed rear leaf-spring front-eye, rear-eye, and shackle positions. The product description ties the spring washers to vibration resistance on rough roads and work sites. Listed fitment covers 1988–2002 Chevrolet and GMC C/K 1500, 2500, and 3500, Silverado, Sierra, Suburban, Tahoe, and Yukon; the listing advises checking its fitment chart.

Skip it if you need replacement hardware for a vehicle outside its listed 1988–2002 Chevrolet and GMC applications; this kit names a defined range.

This fits buyers servicing the listed older Chevrolet or GMC rear leaf-spring positions who want spring lock washers in the set. Check the fitment chart and vehicle details, since its stated applications cover a specific model-year range.

Listed on Amazon as: Leaf Spring Bolt Kit 9/16" x 4-1/2" Grade 8 Steel, 30-Piece

#3

3. Isayokgo Leaf Spring Kit

Best for: Four-bolt rear suspension set.

Why it ranks #3: Its Grade 8, 9/16-inch-by-4-1/2-inch hardware is intended for Chevy and GMC C/K, Silverado, and Sierra applications, but includes only four bolts.

Four Grade 8 hardened alloy-steel bolts define this Isayokgo kit for rear leaf-spring suspension hardware replacement. The included four self-locking nuts and eight hardened flat washers give buyers a matched set for eye-bolt, shackle-bolt, and suspension-mounting applications on the listed Chevrolet and GMC trucks.

The 9/16-by-4-1/2-inch size identifies the fastener dimensions, while the Grade 8 construction is specified for tensile strength and resistance to deformation under heavy suspension loads. Four bolts, four self-locking nuts, and eight hardened flat washers make up the replacement set, so buyers can plan around its four-fastener quantity. Its stated application covers Chevy and GMC C/K 1500, 2500, and 3500, Silverado, and Sierra models; the listing does not give model years.

Skip it if you need six bolts for the job; Opuiue's six-bolt 9/16-by-4-1/2-inch kit supplies a larger set.

Choose this for a rear leaf-spring hardware replacement on a listed Chevy or GMC when four bolts match the job. Its stated dimensions are useful for planning, but the supplied listing does not specify model years, so verify application details.

Listed on Amazon as: Leaf Spring Bolt Kit 9/16" x 4-1/2", Rear Leaf Spring Suspension Hardware Kit for Chevy GMC C/K 1500 2500 3500 Silverado Sierra Replacement

#4 · Broad Model Listing

4. WYQUYP Leaf Spring Kit

Best for: Six-piece Cadillac-Chevy-GMC set.

Why it ranks #4: The six-bolt Grade 8 kit includes lock nuts and washers and lists numerous vehicle applications, including Cadillac Escalade and Chevrolet C/K models.

Six Grade 8 hardened bolts, each specified at 9/16 by 4-1/2 inches, give this WYQUYP kit a defined format for leaf-spring suspension replacement. Six hardened lock nuts and twelve hardened flat washers complete the listed hardware set for securing spring and bracket connections.

WYQUYP describes the kit as helping secure the connection between a leaf spring and suspension bracket, addressing looseness and abnormal noise attributed to loose fasteners. The six-bolt quantity, matching lock nuts, and twelve washers provide a coordinated set, while the stated Grade 8 hardened construction identifies the material grade. The supplied compatibility details name Cadillac Escalade 1995–2000 and multiple Chevrolet vehicles, including C/K models from 1988–2002; check the full vehicle listing for the intended application.

Skip it if you require every compatible model in the supplied details; Cxewreu explicitly lists Chevy, GMC, Ford, and Dodge coverage.

This suits buyers seeking a six-bolt Grade 8 set for a listed Cadillac or Chevrolet application and a leaf-spring bracket connection. Its supplied compatibility text is incomplete, so the full vehicle fitment remains an important boundary.

Listed on Amazon as: Leaf Spring Bolt Kit 9/16" x 4-1/2" Grade 8 Hardened Steel Fit for Cadillac

#5 · Extended Length

5. Cxewreu 5-Inch Kit

• Material Type: Alloy Steel
• Thread Size: 9/16"-12
• Fastener Size: 9/16" x 5"

Best for: Longer bolts for thicker packs.

Why it ranks #5: This Grade 8 kit specifies 9/16-inch-by-5-inch bolts and six nuts with twelve washers, making its longer dimension useful where the application requires it.

The 5-inch bolt length is the defining feature of this Cxewreu eye-bolt kit, with the listing identifying lifted trucks or thicker spring packs as intended uses. Six Grade 8 bolts, six lock nuts, and twelve washers form a complete set for buyers needing that extended length.

Compared with a 4-1/2-inch bolt, the specified 5-inch length gives buyers a longer fastener option for the lifted-truck or thicker-spring-pack applications named in the listing. Grade 8 construction and 9/16-12 coarse threads further identify the hardware, while the six-bolt, six-lock-nut, twelve-washer count supports a multi-fastener replacement. The supplied title names Chevy, GMC, Ford, and Dodge, but does not give model years or detailed vehicle fitment.

Skip it if you need 4-1/2-inch bolts for a listed Chevrolet or GMC year range; Opuiue specifies that shorter size and 1988–2002 coverage.

Choose this when a 5-inch eye bolt matches a lifted truck or thicker spring pack and the named make coverage is relevant. Its extended length and lack of detailed model-year fitment make careful application matching essential.

Listed on Amazon as: Leaf Spring Eye Bolt Kit 9/16" x 5" Grade 8 Hardened Steel with 6 Bolts, 6 Lock Nuts & 12 Washers for Chevy GMC Ford Dodge (9/16" x 5")

#6

6. YunGlee Leaf Spring Kit

• Material Type: Alloy Steel

Best for: Six-bolt hardware set.

Why it ranks #6: It lists six SAE Grade 8 bolts, six flange lock nuts, and twelve washers, but its fitment details conflict between the title and Jeep application description.

Six SAE Grade 8 bolts in a 9/16-by-4-1/2-inch size give this YunGlee kit a clearly specified core for replacing leaf-spring hardware. The package also lists twelve flat washers and six flange lock nuts, providing a coordinated set for a multi-fastener suspension repair.

The stated bolt size and Grade 8 specification help identify the fasteners for a replacement job, while the six flange lock nuts and twelve flat washers supply corresponding hardware. YunGlee describes the kit as replacing worn or rusted factory leaf-spring and hanger bolts and says it helps maintain suspension alignment. However, the listing presents conflicting application information: its title names Chevy and GMC trucks, while the compatibility feature names Jeep Cherokee XJ and Comanche MJ models.

Skip it if you need unambiguous vehicle fitment before ordering; Opuiue lists Chevrolet and GMC applications consistently in its supplied details.

This may suit a buyer who has resolved the application discrepancy and needs six specified Grade 8 bolts with matching nuts and washers. Treat the conflicting Chevy-GMC title and Jeep compatibility text as a key fitment boundary.

Listed on Amazon as: Leaf Spring Bolt Kit 9/16 x 4-1/2 Fits 1988-2002 Chevy GMC C/K 1500 2500

#7

7. Jarosiewicz Leaf Spring Kit

Best for: Broadly listed vehicle coverage.

Why it ranks #7: The listing names Chevrolet and GMC applications and many other vehicles, but provides no bolt dimensions, grade, or included-hardware quantities to verify suitability.

A long list of named vehicle makes and models is the main differentiator of this Jarosiewicz leaf spring bolt kit, spanning Chevrolet, GMC, Cadillac, Chrysler, Dodge, and Ford applications. That breadth gives shoppers several stated vehicle families to check when seeking a replacement suspension fastener.

The title identifies Chevrolet and GMC Silverado and Sierra models from 1988–2002, while the feature list names additional vehicles including Escalade, Avalanche, Blazer, Ram, Explorer, and Ranger. This provides multiple fitment leads for owners comparing a replacement part against their vehicle. However, the supplied specifications do not state bolt dimensions, material grade, or kit contents, so the listing provides less detail for checking fastener size and planning how many pieces a repair requires.

Skip it if you need a stated fastener size and piece count before ordering; Opuiue lists both for its 9/16-by-4-1/2-inch kit.

This is worth considering when your vehicle appears in Jarosiewicz’s extensive listed application names. It is a weaker choice for buyers who need dimensions and quantity up front, since those details are not provided in the supplied specifications.

Listed on Amazon as: Leaf Spring Bolt Kit Fit for Chevrolet GMC Silverado Sierra 1988-2002

#8

8. Generic 20-Piece Kit

• Material Type: Alloy Steel
• Thread Size: 9/16"
• Fastener Size: 9/16" x 4-1/2

Best for: Anti-vibration washer bundle.

Why it ranks #8: The listing specifies 9/16-inch-by-4-1/2-inch Grade 8 bolts and spring lock washers, but its description calls the package both four-piece and 20-piece.

Four spring lock washers are included alongside four Grade 8 bolts, giving this Generic kit an explicit anti-vibration emphasis. Its 9/16-by-4-1/2-inch bolts use 9/16-12 UNC coarse threads, and the black oxide finish is listed as corrosion resistant.

The four bolts, four hex nuts, eight flat washers, and four spring lock washers provide the components described for a rear leaf-spring job. The product attributes the spring lock washers with helping keep nuts tight under road vibration, a practical distinction for buyers choosing between washer configurations. Grade 8 hardened steel, black oxide finish, and 9/16-12 UNC threads specify construction, finish, and thread style; the supplied details do not identify vehicle models or years.

Skip it if you need six bolts for the repair; the Generic 30-piece kit includes six 9/16-by-4-1/2-inch Grade 8 bolts.

This suits a buyer whose rear leaf-spring job calls for four bolts and values the included spring lock washers. The supplied details do not name vehicle applications, so the four-bolt quantity and fitment are key limits.

Listed on Amazon as: Leaf Spring Bolt Kit 9/16" x 4-1/2" Grade 8 Steel, 20-Piece

#9

9. besttruck Trailer Bolt

• Material Type: Alloy Steel
• Thread Size: 9/16''-18
• Fastener Size: 9/16 in

Best for: Single trailer shackle fastener.

Why it ranks #9: This Grade 5, 9/16-inch-by-3-inch bolt and lock nut is specified for 1-3/4-inch trailer leaf springs and listed axle applications, not truck kits.

A 3-inch length paired with a 9/16-inch, 18-thread shank makes this besttruck bolt-and-lock-nut set a specific trailer shackle option. It is listed for mounting 1-3/4-inch-wide leaf springs onto hanger brackets or equalizers, especially on trailers with 2,000- or 3,500-pound axles.

The stated 3-inch length and 9/16-18 thread give buyers concrete dimensions to compare with a trailer hanger or equalizer application. Grade 5 alloy steel and a black oxide finish identify the fastener material and finish, while the included lock nut completes the listed bolt-and-nut pairing. The product is aimed at 1-3/4-inch-wide springs and common 2,000- and 3,500-pound axle applications, rather than a multi-bolt truck suspension kit.

Skip it if you need several fasteners for a complete suspension job; Ussuray lists four trailer bolts and four lock nuts in its pack.

This suits a trailer owner replacing a single shackle fastener on a listed 1-3/4-inch spring and axle application. Its one-bolt pairing and 3-inch length are the key boundaries when planning the repair.

Listed on Amazon as: 9/16" -18 x 3 Trailer Leaf Spring Shackle Bolt & Lock Nut for 1-3/4" Wide Leaf Springs onto Hanger Brackets Or Equalizers

#10

10. Ussuray Trailer Shackle Bolts

• Material Type: Alloy Steel
• Thread Size: 9/16 – 18
• Fastener Size: 9/16 – 18

Best for: Trailer shackle bolt four-pack.

Why it ranks #10: The four Grade 2, 9/16-inch-by-3-1/2-inch bolts and nuts target trailer springs and listed axle capacities, making them a poor match for truck bolt kits.

A 3-1/2-inch shank length and stated compatibility with many trailers using 6,000- or 7,000-pound axles set this Ussuray four-pack apart from truck leaf-spring kits. It includes four round-head shackle bolts and four lock nuts for mounting trailer springs to hangers or equalizers.

The 9/16-inch shank diameter and 18 threads per inch specify the fastener dimensions, while the 3-1/2-inch length helps buyers assess the intended trailer connection. Ussuray lists use with 2-inch-wide slipper or double-eye leaf springs on hanger brackets or equalizers, including many trailers with 6,000- and 7,000-pound axles. Four bolts and four nuts make it a trailer-focused quantity; its listed Grade 2 specification distinguishes it from Grade 8 truck kits.

Skip it if you need Grade 8 truck leaf-spring hardware; WYQUYP lists six Grade 8 bolts for its 9/16-by-4-1/2-inch kit.

This is for trailer owners fitting listed 2-inch-wide slipper or double-eye springs to hangers or equalizers. Its 3-1/2-inch length and Grade 2 rating define the application, so it is not a general substitute for truck kits.

Listed on Amazon as: 9/16" -18 X 3-1/2" Long with Nuts Trailer Leaf Spring Shackle Bolts 4-Pack 23011/23012