Torque Cab Shock Absorber for Peterbilt 300-Series — Direct-Fit Replacement, 12.98in Extended/10.15in Collapsed

Torque Heavy Duty Cab Shock Absorber is a direct-fit replacement for Gabriel 83008 and Monroe 66145, engineered to restore cab control and reduce vibration in compatible Peterbilt models.

Designed for heavy-duty vocational and long-haul trucks, this Torque cab shock absorber matches common OE dimensions and mounting requirements so technicians and fleet managers can swap worn units quickly. It balances robust internal valving with a durable outer construction to handle repeated compression and rebound cycles common in commercial use. The part ships with a 1-year unlimited-mile warranty for added confidence during installation and service.

Which Peterbilt models will this shock absorber fit?

This shock is manufactured to suit a range of Peterbilt cabs across multiple model years; always confirm your existing part number before purchasing. Fitment covers several 300-series trucks commonly used in both regional and long-haul operations.

• Compatible models: Peterbilt 357 (1990–2007), 367 (2008–2020), 375 (1987–1996), 376 (1988–1999), 377 (1987–2001), 378 (1990–2007), 379 (1986–2007), 386 (2006–2016), 388 (2008–2015), 389 (2008–2024).
• Recommend verifying your OE part number with a dealer before ordering.
• Works as a replacement for multiple cross-reference numbers listed below.

How do the physical specifications affect performance?

The absorber’s lengths and stroke determine travel range and mounting clearance, while the bore and valving control damping rates. These dimensions are tuned to deliver predictable rebound and compression behavior under heavy loads.

• Extended length: 12.98 in; collapsed length: 10.15 in; stroke: 3.99 in.
• Bore size: 1-3/8 in with integrated dust tube and recoil cutoff for service life protection.
• Damping ratings: approximately 699 lb rebound and 307 lb compression for stable cab control.

What parts does this Torque shock replace and what warranty is included?

This unit cross-references a number of commonly used OEM and aftermarket part numbers to simplify sourcing. Torque backs the component with a one-year unlimited-mile warranty to cover manufacturing defects and offers replacement support under that policy.

• Replaces Monroe 66145, 66645; Gabriel 83008.
• Also compatible with Peterbilt numbers: 29-02455, 2902455, 654782, R716007, and other vendor codes like Dallas D66145 and Flagg F66145.
• 1-year unlimited-mile warranty for part replacement if defects arise within the coverage period.

How should I verify fitment and install this cab shock absorber?

Before purchasing, check the part number stamped on your existing shock or consult your dealer to confirm compatibility. Installation typically follows standard cab shock replacement procedures; if unsure, have a qualified technician complete the swap to ensure proper torque and alignment.

• Confirm existing OE number or vehicle VIN with your parts dealer before ordering.
• Inspect mounting studs, bushings, and mating surfaces; replace hardware if corroded.
• Tighten to manufacturer torque specs and test cab travel for correct operation after installation.

Who is this for: Fleet maintenance managers, owner-operators, and professional technicians who service Peterbilt 300-series trucks and need a heavy-duty, cross-referenced cab shock absorber for restoring cab stability and comfort. This Torque unit is intended for those who require a rugged replacement that aligns with common OEM dimensions and offers straightforward cross-reference compatibility for quick parts sourcing.