FREE shipping on orders over $99. Restrictions apply, learn more here

Same day shipping Monday-Friday before 3pm PST! Ships from Livermore, California.

Reflex Racing  |  SKU: RX538

Reflex Racing: RX538 Aluminum Gear Differential

$80.00
Shipping calculated at checkout.

Delivery and Shipping

Free shipping on orders over $99 within the continental US.

Ships from Livermore, CA. Ships the same day if order before 3PM PST Monday-Friday.

Orders ship once ALL items are available to ship. If you wish to have in-stock items ship sooner, please order them separately from pre-ordered items.

Reflex Racing's 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. Reflex does not 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. 
Note: 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.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Reflex Racing

Reflex Racing: RX538 Aluminum Gear Differential

$80.00
Reflex Racing's 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. Reflex does not 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. 
Note: 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.
Manual: https://www.reflexracing.net/assets/images/GearDiff_Manual.pdf?rdm=E9A4E1CA4AD2
View product