Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 6 - Jul 11
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Reflex Racing Aluminum Gear Differential - RX538It's finally here! Our all new Gear differential was designed to be a high quality and high performance addition to your 1 28 scale car. More rotation and harder acceleration than the ball differential yields a car that is often about a tenth faster to drive in high traction surfaces. The feel of this gear diff is very balanced and this makes the acceleration super smooth and strong. At only about 4. 7g, it is also super light for less rotational
It's finally here! Our all new Gear differential was designed to be a high quality and high performance addition to your 1/28 scale car. More rotation and harder acceleration than the ball differential yields a car that is often about a tenth faster to drive in high traction surfaces. The feel of this gear diff is very balanced and this makes the acceleration super smooth and strong. At only about 4.7g, it is also super light for less rotational mass.
The gear diff is sealed from the elements as the gears are inside a machined aluminum case in which you can larger amounts of grease to change the behavior of the differential action. The ticker the grease, the lower response into the corner, but this could be at the expense of a little bit of exit traction. We don't recommend going too heavy on the oil (maybe use no more than 1 or 2k CST oil), but you can use oil with no leakage at the spur and only slight leaking at the outputs.
**Please not the diff is not sealed at the bearings, so it is not designed to be "filled" with oil , but a healthy amount can be used when building. Left hub is not included.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 502 reviews
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Product Reviews
★★★★★ 5
Great fit
Size: 3T, Color: Light Grey Heather
Very soft and great material. Stretchier than expected. Fit was great
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Reviewed in the United States on May 2, 2026
★★★★★ 3
Size up
Size: Small, Color: Black
Overall a good hoodie. Thin-ish to medium weight, but don’t expect heavy weight. It’s soft but of course since it’s on more on the thin side it loses its softness quick but for the price it’s good. It’s good to cricut heat transfer on.
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Reviewed in the United States on January 19, 2026
★★★★★ 5
Nice and heavy
Size: Small, Color: Dark Green
Nice quality, heavyweight. My child wears this all the time, it’s really nice.
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Reviewed in the United States on May 24, 2026
★★★★★ 1
Size is wayyyyy off
Size: X-Large, Color: Black
Super small ain’t no way this is an X-Large
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Reviewed in the United States on May 7, 2026
★★★★★ 5
Runs small
Size: 3T, Color: Black
Runs just a little small. Maybe upsize, but great otherwise!
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Reviewed in the United States on February 28, 2026
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