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  • Speedway Leaf Spring U-Bolt, 10 Inch Long
    Speedway Leaf Spring U-Bolt, 10 Inch Long
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    Speedway leaf sping axle U-bolts are heat treated and zinc plated to ensure long life and durability. All bolts are 1/2" diameter. Fits 3" diameter axle tubes.

  • Speedway Leaf Spring U-Bolt, 8 Inch Long
    Speedway Leaf Spring U-Bolt, 8 Inch Long
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    Speedway leaf sping axle U-bolts are heat treated and zinc plated to ensure long life and durability. All bolts are 1/2" diameter. Fits 3" diameter axle tubes.

  • Speedway Aluminum Extruded Leaf Spring Lowering Blocks
    Speedway Aluminum Extruded Leaf Spring Lowering Blocks
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    Our lightweight extruded aluminum lowering blocks are stronger than billet!  Available in several heights, all 2-1/2" wide, 5" long.  The centering pin is 9/16".  These blocks will increase or decrease suspension height on most leaf spring applications and can be installed below the leaf spring to raise the vehicle or on top of the leaf spring to lower the vehicle. These lowering blocks allow you to lower your leaf spring vehicle by up to 4 inches.  Heavy Duty U-bolts and hardware are available separately.

    • Lightweight aluminum lowering blocks are stronger than billet
    • 2-1/2" wide
    • 5" long
    • 9/16" centering pin
    • Increase or decrease suspension height on most leaf spring applications
    • Allows you to lower your leaf spring vehicle by up to 4 inches
    • U-bolts and hardware available separately

    Lowering blocks are sold individually (each).

    THICKNESS options explained:

    • 025 = 1/4" thick
    • 050 = 1/2" thick
    • 075 = 3/4" thick
    • 100 = 1" thick
    • 150 = 1.5" thick
    • 200 = 2" thick
    • 250 = 2.5" thick
    • 300 = 3" thick
    • 350 = 3.5" thick
    • 400 = 4" thick
  • Ford Model T - 1934 Front Spring U-Bolt Kit, Plain Steel
    Ford Model T - 1934 Front Spring U-Bolt Kit, Plain Steel
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    Use with original or reproduction Model "T" thru '34 Ford crossmembers. Includes two U-bolts with nuts, one spacer plate and one lower bracket.

  • Ford Model T - 1934 Front Spring U-Bolt Kit, Stainless
    Ford Model T - 1934 Front Spring U-Bolt Kit, Stainless
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    Use with original or reproduction Model "T" thru '34 Ford front crossmembers. Includes two stainless steel U-bolts with nuts, one plain steel spacer plate and one plain steel lower bracket.

    Note: Only the bolts are stainless, the clamping plate and leaf spacer are regular steel. Apply an anti-seize compound to ensure that the threads are not damaged upon assembly.

  • Ford Model T - 1934 Front Spring U-Bolt Kit, Chrome
    Ford Model T - 1934 Front Spring U-Bolt Kit, Chrome
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    Use with original or reproduction Model "T" thru '34 Ford front crossmembers. Includes two chrome plated U-bolts with nuts, one plain steel spacer plate and one plain steel lower bracket.

    Note: Only the bolt finish is chrome, the clamping plate and leaf spacer have a plain finish. Threaded items which are chrome plated will have a build-up of chrome in threads. You must run a tap or die over those threads and apply an anti-seize compound or the parts will be damaged upon assembly.

  • Speedway 1948-60 Ford Half-Ton Rear Axle U-Bolt
    Speedway 1948-60 Ford Half-Ton Rear Axle U-Bolt
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    Anytime you remove a leaf spring U-bolt, you should replace it. Once they have been tightened and stretch, they have lost their strength. These U-bolts are designed to be used with stock 2-1/4" wide rear Ford half-ton multi-leaf springs.

    • 3" center to center mounting
    • 8-5/8" overall length and 8" inside
    • 2-3/8" inside width for 2-1/4" spring

    Bolts have 9/16" rolled threads and include flat washers and nylock nuts.

  • Speedway 1948-56 Ford Half-Ton Front Axle U-Bolt
    Speedway 1948-56 Ford Half-Ton Front Axle U-Bolt
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    Anytime you remove a leaf spring U-bolt, you should replace it. Once they have been tightened and stretch, they have lost their strength. These U-bolts are designed to be used with stock front Ford half-ton multi-leaf springs.

    Bolts have 9/16" rolled threads and include flat washers and nylock nuts.

  • Speedway 1947-54 Chevy Half-Ton Axle U-Bolt
    Speedway 1947-54 Chevy Half-Ton Axle U-Bolt
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    Anytime you remove a leaf spring U-bolt, you should replace it. Once they have been tightened and stretch, they have lost their strength. These U-bolts are designed to be used with stock 2" wide front or rear Chevy/GMC half-ton multi-leaf springs.

    Includes flat washers and nylock nuts.

  • Speedway 1948-56 Ford Half-Ton Front Axle U-Bolts, Set/4
    Speedway 1948-56 Ford Half-Ton Front Axle U-Bolts, Set/4
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    Anytime you remove a leaf spring U-bolt, you should replace it. Once they have been tightened and stretch, they have lost their strength. These U-bolts are designed to be used with stock front Ford half-ton multi-leaf springs.

    Bolts have 9/16" rolled threads and include flat washers and nylock nuts.

  • Speedway 1957-60 Ford Half-Ton Front Axle U-Bolts, Set/4
    Speedway 1957-60 Ford Half-Ton Front Axle U-Bolts, Set/4
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    Anytime you remove a leaf spring U-bolt, you should replace it. Once they have been tightened and stretch, they have lost their strength. These U-bolts are designed to be used with stock 2" wide front Ford half-ton multi-leaf springs.

    Bolts have 9/16" rolled threads and include flat washers and nylock nuts.

  • Speedway 1948-60 Ford Half-Ton Rear Axle U-Bolts, Set/4
    Speedway 1948-60 Ford Half-Ton Rear Axle U-Bolts, Set/4
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    Anytime you remove a leaf spring U-bolt, you should replace it. Once they have been tightened and stretch, they have lost their strength. These U-bolts are designed to be used with stock 2-1/4" wide rear Ford half-ton multi-leaf springs.

    Bolts have 9/16" rolled threads and include flat washers and nylock nuts.

  • Speedway 1957-60 Ford Half-Ton Front Axle U-Bolt
    Speedway 1957-60 Ford Half-Ton Front Axle U-Bolt
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    Anytime you remove a leaf spring U-bolt, you should replace it. Once they have been tightened and stretch, they have lost their strength. These U-bolts are designed to be used with stock 2" wide front Ford half-ton multi-leaf springs.

    Bolts have 9/16" rolled threads and include flat washers and nylock nuts.

  • Posies Super Slide Springs 155R 1955-56 Ford Pickup Rear Dropped Springs
    Posies Super Slide Springs 155R 1955-56 Ford Pickup Rear Dropped Springs
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    These new multi-leaf rear springs by Posies lower your classic Ford half-ton pickup 3" more than a set of stock replacement springs. Super Slide springs incorporate moly-nylon buttons that reside in die-formed pockets at the tips of the spring leave. Replace your 50 year old stock springs with these new, computer-designed leaf springs for a much smoother ride. Springs have reduced load capacity from stock just from the fact that you are lowering your vehicle.

    Does not include shackles, shackle bolts, or U-bolts. U-bolts available separately as part number 916-3326.

  • Speedway 1955-59 Chevy Half-Ton Rear Axle U-Bolt
    Speedway 1955-59 Chevy Half-Ton Rear Axle U-Bolt
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    Anytime you remove a leaf spring U-bolt, you should replace it. Once they have been tightened and stretch, they have lost their strength. These U-bolts are designed to be used with stock 2" wide rear Chevy/GMC half-ton multi-leaf springs.

    Includes flat washers and nylock nuts.

  • Speedway 1947-54 Chevy Half-Ton Axle U-Bolts, Set/4
    Speedway 1947-54 Chevy Half-Ton Axle U-Bolts, Set/4
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    Anytime you remove a leaf spring U-bolt, you should replace it. Once they have been tightened and stretch, they have lost their strength. These U-bolts are designed to be used with stock 2" wide front or rear Chevy/GMC half-ton multi-leaf springs.

    Save money and buy this set of four. Includes flat washers and nylock nuts.

  • Speedway 1955-59 Chevy Half-Ton Front Axle U-Bolt
    Speedway 1955-59 Chevy Half-Ton Front Axle U-Bolt
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    Anytime you remove a leaf spring U-bolt, you should replace it. Once they have been tightened and stretch, they have lost their strength. These U-bolts are designed to be used with stock 2" wide front Chevy/GMC half-ton multi-leaf springs.

    Includes flat washers and nylock nuts.

  • Speedway 1955-59 Chevy Half-Ton Rear Axle U-Bolts, Set/4
    Speedway 1955-59 Chevy Half-Ton Rear Axle U-Bolts, Set/4
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    Anytime you remove a leaf spring U-bolt, you should replace it. Once they have been tightened and stretch, they have lost their strength. These U-bolts are designed to be used with stock 2" wide Chevy/GMC half-ton multi-leaf springs.

    Save money and buy this set of four. Includes flat washers and nylock nuts.

  • Speedway 1955-59 Chevy Half-Ton Front Axle U-Bolts, Set/4
    Speedway 1955-59 Chevy Half-Ton Front Axle U-Bolts, Set/4
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    Anytime you remove a leaf spring U-bolt, you should replace it. Once they have been tightened and stretch, they have lost their strength. These U-bolts are designed to be used with stock 2" wide Chevy/GMC half-ton multi-leaf springs.

    Save money and buy this set of four. Includes flat washers and nylock nuts.

  • Transverse Rear Leaf Spring Perch Kit
    Transverse Rear Leaf Spring Perch Kit
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    Perch welds to your square or rectangular rear crossmember when using a 2-1/4" wide transverse leaf spring. Plain U-bolts included. Rear perch is made from .25" thick steel.

  • Posies Super Slide Springs D445 55-59 Chevy/GM Pickup Dropped Front Springs
    Posies Super Slide Springs D445 55-59 Chevy/GM Pickup Dropped Front Springs
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    These Dual-Flex front springs by Posies lower your classic Chevy 1/2-ton pickup 3" more than a set of new replacement springs. The unique 2-leaf tapered design offers a better ride and provides a 100% increase in safety over mono-leaf springs.

    Includes new U-bolts for easy installation. Shackle and spring bolts sold separately.

    Note: If used in conjunction with a dropped front axle, you may encounter bump steer and tie rod issues.

  • Sprint Car U-Joint Steel Bolt Kit, 7/16-20 x 1 Inch
    Sprint Car U-Joint Steel Bolt Kit, 7/16-20 x 1 Inch
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    U-joint bolt kit for sprint car driveshaft U-joints. These steel socket cap screws have hex drive heads and 7/16"-20 fine threads with a 1.00" length. Black oxide coated.

    Includes 4 bolts per bag.

  • Posies Super Slide Springs D441 47-54 Chevy/GM Pickup Dropped Front Springs
    Posies Super Slide Springs D441 47-54 Chevy/GM Pickup Dropped Front Springs
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    These Dual-Flex front springs by Posies lower your classic Chevy 1/2-ton pickup 3" more than a set of new replacement springs. The unique 2-leaf tapered design offers a better ride and provides a 100% increase in safety over mono-leaf springs.

    Includes new U-bolts for easy installation. Shackle and spring bolts sold separately.

    Note: If used in conjunction with a dropped front axle, you may encounter bump steer and tie rod issues.

  • Plain U-Bolts, 1-3/4 Inch
    $7.99
    Product Rating: 5.00 Stars
    Plain U-Bolts, 1-3/4 Inch
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    These rugged 7/16" zinc plated U-bolts will securely attach the front or rear spring to the crossmember. Apply an anti-seize compound to ensure that the threads are not damaged upon assembly.

    For use with 1-3/4" wide springs.

  • Ford Spindles - 4-Bar Spring-Behind Front End Kit, Chrome
    Ford Spindles - 4-Bar Spring-Behind Front End Kit, Chrome
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                Tube axle works with 1937-48 Ford passenger car spindles. Works great for T's and lightweight, fenderless vehicles (maximum car weight 2500 lbs.).

    Kit includes:

    • Two 1-3/4" spring shackles
    • Two spring pivots
    • 26" 4 leaf spring
    • Tube axle, 48" eye-to-eye, 4" drop
    • Four brackets welded to axle
    • Four radius rods
    • Four 4-bar ends
    • Four jam nuts
    • Panhard bar assembly
    • Spring U-bolts sold separately

    Front Axle/Suspension Tech Tips (GIF)

  • Ford Spindles - 4-Bar Spring-Behind Front End Kit, Stainless
    Ford Spindles - 4-Bar Spring-Behind Front End Kit, Stainless
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                Tube axle works with 1937-48 Ford passenger car spindles. Works great for T's and lightweight, fenderless vehicles (maximum car weight 2500 lbs.).

    Kit includes:

    • Two 1-3/4" spring shackles
    • Two spring pivots
    • 26" 4 leaf spring
    • Tube axle, 48" eye-to-eye, 4" drop
    • Four brackets welded to axle
    • Four radius rods
    • Four 4-bar ends
    • Four jam nuts
    • Panhard bar assembly
    • Spring U-bolts sold separately

    Front Axle/Suspension Tech Tips (GIF)

  • Ford Spindles - 4-Bar Spring-Behind Front End Kit, Plain
    Ford Spindles - 4-Bar Spring-Behind Front End Kit, Plain
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                Tube axle works with 1937-48 Ford passenger car spindles. Works great for T's and lightweight, fenderless vehicles (maximum car weight 2500 lbs.).

    Kit includes:

    • Two 1-3/4" spring shackles
    • Two spring pivots
    • 26" 4 leaf spring
    • Tube axle, 48" eye-to-eye, 4" drop
    • Four brackets welded to axle
    • Four radius rods
    • Four 4-bar ends
    • Four jam nuts
    • Panhard bar assembly
    • Spring U-bolts sold separately

    Front Axle/Suspension Tech Tips (GIF)

  • Currie 1964-66 Mustang 9 Inch Replacement Rear Axle
    Currie 1964-66 Mustang 9 Inch Replacement Rear Axle
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                Please view the product's page for more information
            
  • Spring-Behind 4 Inch Drop Tube Axle Front End for Ford Spindles, Plain
    Spring-Behind 4 Inch Drop Tube Axle Front End for Ford Spindles, Plain
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    For 1937-1948 early Ford passenger car spindles. Maximum car weight 2500 lbs.  Plain steel construction.

    Kit includes:

    • Two 1-3/4" spring shackles w/ nylon bushings
    • Two spring pivots
    • 26" 4-leaf spring w/ nylon buttons
    • Two axle brackets
    • Tube axle, 48" eye-to-eye, 4" dropped
    • Two 27" radius rods
    • Four clevises with jam nuts and bolts
    • Two 5/8" Heims with jam nuts
    • Spring U-bolts sold separately

    Instructions (PDF)

    Front Axle/Suspension Tech Tips (GIF) 

  • Speedway Spring-Over 6 Inch Drop Front End for Ford Spindles, Stainless
    Speedway Spring-Over 6 Inch Drop Front End for Ford Spindles, Stainless
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    For T's and early 1930's street rods using 1937-48 Ford passenger car spindles. Maximum car weight is 2500 lbs.

    Kit includes:

    • Two 1-3/4" spring shackles with nylon bushings
    • Two spring pivots
    • 26" 4 leaf Super Glide™ spring, 1-3/4" wide (chrome spring used on stainless steel kit)
    • Two axle brackets
    • Tube axle, 48" eye-to-eye, 6" drop
    • Two 27" radius rods
    • Four clevises with jam nuts and bolts
    • Two 5/8" heims with jam nuts
    • Spring U-bolts sold separately
  • Speedway Spring-Over 6 Inch Drop Front End for Ford Spindles, Chrome
    Speedway Spring-Over 6 Inch Drop Front End for Ford Spindles, Chrome
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    For T's and early 1930's street rods using 1937-48 Ford passenger car spindles. Maximum car weight is 2500 lbs.

    Kit includes:

    • Two 1-3/4" spring shackles with nylon bushings
    • Two spring pivots
    • 26" 4 leaf Super Glide™ spring, 1-3/4" wide
    • Two axle brackets
    • Tube axle, 48" eye-to-eye, 6" drop
    • Two 27" radius rods
    • Four clevises with jam nuts and bolts
    • Two 5/8" heims with jam nuts
    • Spring U-bolts sold separately
  • Speedway Spring-Over 6 Inch Drop Front End for Ford Spindles, Plain
    Speedway Spring-Over 6 Inch Drop Front End for Ford Spindles, Plain
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    For T's and early 1930's street rods using 1937-48 Ford passenger car spindles. Maximum car weight is 2500 lbs.

    Kit includes:

    • Two 1-3/4" spring shackles with nylon bushings
    • Two spring pivots
    • 26" 4 leaf Super Glide™ spring, 1-3/4" wide
    • Two axle brackets
    • Tube axle, 48" eye-to-eye, 6" drop
    • Two 27" radius rods
    • Four clevises with jam nuts and bolts
    • Two 5/8" heims with jam nuts
    • Spring U-bolts sold separately
  • Spring-Over 6 Inch Drop Front End for Chevy Spindles, Chrome
    Spring-Over 6 Inch Drop Front End for Chevy Spindles, Chrome
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                For T's and early 1930's street rods using 1949-54 Chevy passenger car spindles. Maximum car weight 2500 lbs. 

    Kit includes:

    • Two 1-3/4" spring shackles with nylon bushings
    • Two spring pivots
    • 26" 4-leaf Super Glide™ spring, 1-3/4" wide (chrome spring used on stainless steel kit)
    • Two axle brackets
    • Tube axle, 48" eye-to-eye, 6" drop
    • Two 27" radius rods
    • Four clevises with jam nuts and bolts
    • Two 5/8" heims with jam nuts
    • Spring U-bolts sold separately

    Front Axle/Suspension Tech Tips (GIF)

  • Spring-Over 4 Inch Drop Front End for Ford Spindles, Stainless
    Spring-Over 4 Inch Drop Front End for Ford Spindles, Stainless
    x
                For T's and early 1930's street rods using 1937-48 Ford passenger car spindles. Maximum car weight is 2500 lbs. 

    Kit includes:

    • Two 1-3/4" spring shackles with nylon bushings
    • Two spring pivots
    • 26" 4-leaf Super Glide™ spring, 1-3/4" wide (chrome spring used on stainless steel kit)
    • Two axle brackets
    • Tube axle, 48" eye-to-eye, 4" drop
    • Two 27" radius rods
    • Four clevises with jam nuts and bolts
    • Two 5/8" heims with jam nuts
    • Spring U-bolts sold separately

    Front Axle/Suspension Tech Tips (GIF)

  • Spring-Over 4 Inch Drop Front End for Chevy Spindles, Plain
    Spring-Over 4 Inch Drop Front End for Chevy Spindles, Plain
    x
                For T's and early 1930's street rods using 1949-54 Chevy passenger car spindles. Maximum car weight 2500 lbs.

    Kit includes:

    • Two 1-3/4" spring shackles with nylon bushings
    • Two spring pivots
    • 26" 4-leaf Super Glide™ spring, 1-3/4" wide
    • Two axle brackets
    • Tube axle, 48" eye-to-eye, 4" drop
    • Two 27" radius rods
    • Four clevises with jam nuts and bolts
    • Two 5/8" heims with jam nuts
    • Spring U-bolts sold separately

    Front Axle/Suspension Tech Tips (GIF)

  • Spring-Over 4 Inch Drop Front End for Ford Spindles, Chrome
    Spring-Over 4 Inch Drop Front End for Ford Spindles, Chrome
    x
                For T's and early 1930's street rods using 1937-48 Ford passenger car spindles. Maximum car weight is 2500 lbs. 

    Kit includes:

    • Two 1-3/4" spring shackles with nylon bushings
    • Two spring pivots
    • 26" 4-leaf Super Glide™ spring, 1-3/4" wide (chrome spring used on stainless steel kit)
    • Two axle brackets
    • Tube axle, 48" eye-to-eye, 4" drop
    • Two 27" radius rods
    • Four clevises with jam nuts and bolts
    • Two 5/8" heims with jam nuts
    • Spring U-bolts sold separately

    Front Axle/Suspension Tech Tips (GIF)

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