Torsion Bar Set - '86-'97 Nissan Hardbody 4WD
SKU 1456
Category: Nissan Torsion Bars
The "Extra Heavy-Duty" solution for the long-wheelbase Nissan Hardbody 4WD. These solid 27.5mm torsion bars are among the largest diameters Sway-A-Way offers for this chassis. By increasing the spring rate by 20–30%, they provide the massive front-end support required for trucks equipped with heavy steel plate bumpers, high-capacity winches, or snow plows—equipment that typically causes the factory suspension to sag and bottom out.
Performance & Fitment
Application: Front Torsion Bar Set (Long-Bar Configuration) Diameter: 27.5mm (Maximum Load / Heavy-Duty) Length: 47.44" Spring Rate: +20% to +30% over OEM
Nissan Hardbody (D21) 4WD: 1986.5 through 1997
Note: Specifically for 4WD models utilizing the 47.44" length bars (typically V6 and long-bed configurations).
Premium Construction
Material: Solid 4340 aircraft-grade alloy steel, engineered for high torsional fatigue resistance.
Manufacturing: Centerless ground to a precise 27.5mm to ensure a perfectly linear spring rate and eliminate any surface "notches" that could lead to fractures under heavy off-road use.
Heat Treatment: Specialized through-hardening allows these bars to maintain their indexed height even when subjected to the constant weight of heavy front-end armor.
Finish: Industrial powder coating for superior protection against the high-moisture and high-abrasion environments of the front wheel wells.
⚠️ Critical Fitment & Safety Notes
Verify Your Length: Nissan used both "short" and "long" bars on the Hardbody. SKU 1456 is 47.44" long. If your current bars are roughly 35", this SKU will not fit your torsion housing.
Ride Quality Warning: A 27.5mm bar is significantly stiffer than stock. If your truck is lightweight (no bumper or winch), these bars may provide a very rigid ride. They are best suited for vehicles with at least 150+ lbs of additional front-end weight.
Shock Requirement: You must upgrade to a high-performance gas-charged monotube shock (like the Bilstein 4600 or 5100). Factory-style twin-tube shocks lack the valving necessary to control the high rebound energy of a 27.5mm bar.
Installation: Use high-pressure waterproof grease on the splines to prevent "popping" noises and ensure the bars can be removed in the future.
What’s Included
(1) Pair of solid torsion bars
Warranty
Backed by a 1-year warranty for peace of mind.