Axle/Hub Assembly, Heavy Duty U-Joint, TR4A – TR6, Pair

SKU: N/A Categories: ,
Dimensions: 22 × 13 × 7 in
Weight: 46lbs


Upgraded universal joint axle and hub

Fits Triumph TR4A, TR250 and TR6

Sold as a pair




Good Parts upgraded u-joint rear axle assemblies are built using all new premium components and 1310 series u-joints.  1310 series u-joints are larger and stronger than the original 1300 series u-joints.  The axles are assembled with new Good Parts rear hubs (SKU 112).  Good Parts rear hubs are a much stronger design than original hubs and use a replaceable modern, sealed, tapered roller wheel bearing with factory set pre-load.

This pair of axles are the correct length to fit in a Triumph TR4A, TR250 or TR6 with an original differential installed.  The assembly includes two Good Parts upgraded rear hubs (SKU 112) with your choice of wheel stud length.  The kit includes mounting hardware for the axles and hubs.

Click here for installation instructions

Available Wheel Stud Lengths:

7/8″ = Wire wheels

1-3/16″ = Factory steel wheels and most aftermarket alloy wheels

1-3/8″ = Alloy wheels with thicker center flange (may require measuring to ensure proper lug nut thread depth)

1-9/16″ or 1-3/4″ = Wheels + wheel spacers

2-1/4″ (+1/4″ unthreaded nose) = Full length for custom cutting or open ended lug nuts

2″ (+1/4″ unthreaded nose) ½-20 ARP = Larger ½-20 studs for increased strength, made by ARP

Wheel studs are standard 7/16-20 thread unless specified.  Stud length is measured from face of hub flange without the brake drum installed.

This item is custom assembled for each order.  Typical lead time is 1-2 weeks.

Additional information

Weight 46 lbs
Dimensions 22 × 13 × 7 in
Select U-Joint Type

Standard greaseable U-joints, Gold series U-joints + $40

Hub Mounting Holes

5/16” for factory hub mounting studs, 3/8” for Good Parts uprated studs or rear disc brake kit

Wheel Stud Length

7/8" factory length for wire wheels, 1-3/16” factory length for steel wheels, 1-3/8", 1-9/16” for steel wheels with 3/8” spacers, 1-3/4", 2-1/4″ threaded length (+1/4″ unthreaded nose), 2" threaded length (+1/4" unthreaded nose) ½-20 ARP + $140


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