Bill Smith
Founder, 1929-2014
Speedy Bill
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QA1 5073 Steel Bearing End Shock, 7 Inch Stroke, 3/3 Valving

SAME DAY SHIPPING! Order within the next 7 hours 22 minutes and receive same day shipping

Sold in Quantity:
Powder Coated
Extended Length:
Compressed Length:
Shock Type:
Twin Tube
Shock Eyelet Width:
Hardware Included:
Bushing Material:
Body Diameter:
MFG. Part #:
Valve Positions:
3 compression - 3 rebound
Upper Shock Mount:
1/2 Inch Eyelet
Lower Shock Mount:
1/2 Inch Eyelet
Shock Body Material:
Bolt Hole Circle:
Coil-Over Compatible:
Garage Sale:
QA1 5073 Steel Bearing End Shock, 7 Inch Stroke, 3/3 Valving

Click image to enlarge



Q & A

What's in the Box

Removable bearing mount allows installation of rubber bumpers or shock extensions. Can also be used with coil-over mount kits - slight drilling of upper spring mount required.

  • Racer Revalveable & Rebuildable
  • No Valving Overlap
  • Precision Machined Piston with P.T.F.E. Piston Band
  • 15mm Centerless Ground, Hard Chrome Plated, Solid Piston Rod
  • Deflective Disc Valving
  • Twin Tube Design
  • 2" O.D. Steel Body
  • Can Be Run Upside Down
  • Use Large Body Tuning Kit # TK01 For Valve Combination Changes Between 0-13

QA1 Bearing End Shock Chart (GIF)


This is garage sale priced because it has been discontinued.



You may also be interested in:

QA1 5173 51 Series Steel Twin Tube 7 Inch Shock, Comp/Reb 3/3
(Part #7215173)
The best keep getting better! QA1 has taken your feedback, added new technology and developed an improved 50 Series shock absorber - the 51 Series. QA1’s 51 Series features a brand new in-house machined body, which has a large inside diameter for easy installation of gas bags. This twin tube shock absorber features hard anodized internals and has a zero gas pressure design providing the most grip on slick tracks and the best feel of any shock. Available in nine inch strokes, the 51 Series is the premium twin tube choice for dirt and asphalt modifieds, late models and super stocks. The 51 Series is manufactured in QA1’s Lakeville, MN facility and is completely racer rebuildable and revalveable.
  • Racer Revalveable & Rebuildable
  • Can Be Run Upside Down
  • Length - 7"   

Note: Be sure to check compressed and extended lengths carefully for proper fit. QA1 lengths do not necessarily correspond to competitors’ lengths.

QA1 also offers these shocks in packages specific to a variety of series. Contact QA1 for more information.


Additional Piston Option: QA1 also offers a brand new high-flow linear two port piston for the 51 Series as an additional accessory. This two port piston design allows the valve discs to open consistently which results in a smoother force curve and accommodates independent compression and rebound bleed circuits for precision low-speed force control.

Related Products: 

With the Large Body Tuning Kit (part# 721TK01) so you can change your shocks to any valving combination between 0 and 13.

Coil Over Kit, 5 Sleeve, 2 Body for QA1 Shock
(Part #91046236-QA1)
                        These coil over kits fit bearing end shocks with no modifications necessary. Available for Pro Shocks, Carrera, Monroe, QA1 or Bilstein coil-over compatible shocks.  

Coilover kit works with 2 1/2" I.D. springs and 2" O.D. body shocks. The Carrera kit can be used on Bilstein shocks by adding a thick (.120") washer in the spring seat cup.

910-46236 Instructions (PDF)

QA1 7888-109 Coil-Over Thrust Bearing Kit
(Part #7217888)

This kit installs at the bottom of the 2-1/2" I.D. coil-over spring and allows easier adjustment of your ride height.

  • Includes two bearings and four washers
  • Kit services two coilovers
  • 2.512" I.D.
  • 3.233" O.D.