Rear Hub Assembly, Heavy Duty, for Original Axle, TR4A – TR6

SKU: 112 Categories: ,
Dimensions: 10 × 6 × 6 in
Weight: 12lbs



Upgraded rear axle hub with adapter to attach to original U-joint axles

Fits Triumph TR4A IRS, TR250, and TR6

Sold individually


Don’t spend money rebuilding your original hubs! Replace them with new, stronger hubs and put an end to worries of a dangerous failure. Failure of the weak, stock rear hub can cause a wheel to suddenly part company with the car with devastating results. The stock hub transmits all the side force through a small, 1.06″ diameter axle shaft. Good Parts hubs use a much stronger design where the side force is transferred directly from the wheel flange to the large bearing where the minimum load bearing diameter is 1.83″


Uses a modern sealed double tapered roller bearing with factory set pre-load

Reduced weight and hub flex improves handling

Simple bolt-in with no modifications to trailing arm

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

Additional information

Weight 12 lbs
Dimensions 10 × 6 × 6 in
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", 2-3/4″ ARP + $10.00, 2-3/4" ARP + $20.00, 2-3/4″ ARP cut to length + $20.00 (Specify length in order notes during checkout), 2-3/4" ARP cut to length + $40.00 (Specify length in order notes during checkout), 3-1/8” ½-20 ARP + $24.00, 3-1/8” ½-20 ARP + $48.00


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