Features a large aluminum body with an anodized finish for added protection, They features an easy, bolt-in installation with no cutting or welding required, All shocks are 100% dyno tested and serialized before being shipped, Extended length measures 16.38" and has a 11" compressed length
QA1 TS504 Stocker Star Twin Tube Shock, 16.38/11 Ext/Comp QA1
QA1 TS504 Stocker Star Twin Tube Shock, 16.38/11 Ext/Comp
Sku # 721TS504
Mfr. Part # TS504
Condition
New
Brand
QA1
Sold
Each
Details

QA1 offers stock mount, aluminum adjustable shocks available in double, single, Drag "R" Series and Non-adjustable valving options. With these shocks, you can get exactly the ride you want, great looks and high performance handling, all at an unbeatable price. You can't go wrong with these QA1 smooth body shocks.

  • Made in the U.S.A.
  • Easy, Bolt-In Installation
  • No Cutting or Welding Needed
  • Non-Coil-Over
  • Lightweight Aluminum
  • Stock Mount
  • 100% Dyno Tested and Serialized Rebuildable and Revalveable by the QA1 Factory or QA1 Authorized Service Centers
Specs
Shock Type
Twin Tube
Shock Adjustability
Single Adjustable
Shock Body Material
Aluminum
Shock Body Type
Smooth
Shock Body Size
Large Body
Position
Rear
Mount Position
Stock Mount
Upper Shock Mount
Bushed Eyelet
Lower Shock Mount
Bushed Eyelet
Extended Length Range
16.00" to 16.99"
Extended Length
16.38"
Compressed Length Range
11.00" to 11.99"
Finish
Anodized
Compressed Length
11"
Rebuildable
Yes
Gas Charged
No
Schrader Valve
No
Coil-Over Compatible
No
Bushing Material
Polyurethane
Boot Included
No
Color
Silver
Sold in Quantity
Each
MFG. Part #
TS504
GTIN Code
806990060136
Reviews

QA1 Shocks

Rated
Product Rating
by Dave w/ '57 on February 28, 2026

Summary: I installed on my '57 Chevy. I love how they are adjustable and you can fine tune the stiffness of the ride.

Yes, I recommend this product.

Awesome product ride is much improved!

Rated
Product Rating
by ott on June 07, 2018

Summary: The ride these shocks provided was superior to the shocks that were in there.

Yes, I recommend this product.

Tech Support
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About
Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 74 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.