1990-05 Chevy Astro GMC Safari Torsion Bar with Adjuster Key Pair Dorman 697-601, 697-600 - 1ASFK00155

These replacement torsion bars are just what you need to bring back the safety and integrity of your vehicle's suspension and steering.

A Torsion Bar is attached to the vehicle chassis. Vertical motion of the wheel causes the bar to rotate along its axis and is resisted by the bar's torsion resistance. The effective spring rate of the bar is determined by its length and diameter. The original design for this Torsion bar was flawed, collected and held water. This eventually caused rust, corrosion, and eventual failure.


  • Comes as a PAIR
    • Fits both LH (Driver Side) & RH (Passenger Side) FRONT
  • Includes adjustment keys
  • New, not remanufactured or refurbished
  • Re-engineered to eliminated the original failure point
  • Fits AWD (All Wheel Drive) Models only

NOTE: The original factory part had longer then needed torsion bars on the hex end. With this extra length it would hang out of the hole not being used. but it will fit and function properly for both 36" & 41" designs. This new design eliminates that extra length. The new design is roughly six inches shorter (with no end cap) than the original factory part.

NOTE: Since these parts are under extreme tensions & pressures, we recommend professional installation of these parts.

Worn torsion bars can cause excessive front tire wear, popping or creaking in the front end, extra play in the tracking system, and pose a serious safety concern. Replace that heavily rusted, rotted, or damaged torsion bar with our high quality all in one replacement.

Part Details

  • Quantity: Pair

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser.

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Vehicle Fit

Year Make Model Description
1990-2005Chevy Astro Chevy Astro All Wheel Drive Torsion Bar with Adjuster Key Pair Dorman 697-601, 697-600
1990-2005GMC Safari GMC Safari All Wheel Drive Torsion Bar with Adjuster Key Pair Dorman 697-601, 697-600

This part replaces:

  • Dorman 697-600
  • Dorman 697-601
  • Hollander 521-00039L
  • Hollander 521-00039R
  • Dorman 697-601, 697-600
  • OE # 15990701, 15990702
Part #: 1ASFK00155

Out of Stock

Brand #: 697-601, 697-600