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Suspension and Components› Shocks, Struts, Coil-Overs and Components
QA1 Precision Products, Inc
QA1 13.50 Stud/T-Bar V 5-5 Shock Large Steel 9.38
SKU: Q00B 5Q945
Moderate — 2–4 hours
Overview
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Part #: 5Q945
QA1 5Q Series Circle Track Rebuildable Steel Twin Tube Shocks
Features:
- 5Q shocks can be re-valved and rebuilt by racers in a matter of minutes using basic tools
- Two-piece bodies make it simple to disassemble and reassemble shocks
- The gland features relief cuts and a hyper screw port, making shocks easy to fill and bleed on assembly.
- Upgraded seal kit minimizes leaksespecially in high-rebound applications
- The compression tube uses a slip fit design to simplify the rebuild process
- 5Q shocks utilize a laser-engraved, black-anodized closure nut to make serial numbers and valving easy to read at the track or in the shop
Shock - 5Q Series - Twintube - C4-R5 Valve - Front - Steel - Black Zinc - Circle Track - Each
This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
Vehicle Symptoms
- Car feels loose and unstable in corners
- Excessive body roll during high-speed turns
- Bottoming out on track bumps and curbs
- Inconsistent lap times due to poor damping
- Rear end hops or skips on corner exit
Relevant Conversations
- QA1 5Q shock absorber review circle track
- rebuildable twin-tube shock for dirt racing
- 5Q945 vs AFCO 9010 shock comparison
- how to rebuild QA1 5Q series shock
- best shock setup for late model stock car
- car bouncing after corner entry fix shock
- QA1 shock valving options for asphalt
- circle track shock absorber install tips
- 5Q series shock rebuild kit needed
- symptoms of worn racing shock absorbers
Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
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Specifications
| Brand | QA1 Precision Products, Inc |
| Part Number | Q00B 5Q945 |
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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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