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Dec 03, 2025 - 12:08 PM
We’ve provided several answers to questions related to PolarStar Gearbox Shim Set for Cylinder Conversion Kits , see some other helpful Q&A related to this product.
Question: Is this shim set compatible with PolarStar F1 cylinder conversion kits?
Answer: Yes, the gearbox shims are compatible with PolarStar F1 cylinder conversion kits. The F1 is another HPA system, and these shims help prevent unwanted cylinder movement, which can impact accuracy and efficiency.
Question: What sizes are available for the shim set?
Answer: The gearbox shims are available in two sizes: 0.157 inch and 0.152 inch. Having size options ensures a more secure fit for different gearbox pin sizes, preventing unwanted movement and enhancing performance.
Question: Is this shim set compatible with PolarStar JACK cylinder conversion kits?
Answer: Yes, this gearbox shim set is compatible with PolarStar JACK cylinder conversion kits. The JACK is a drop-in HPA system, and using the proper gearbox shims ensures optimal alignment and air seal during operation.
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