Hot Racing optional helical spiral differential gear set for the many 1/10 scale Traxxas vehicles. This item replaces Traxxas 5379X; please check your Traxxas manual to verify your model uses the 5379X gear set. The Hot Racing ring and pinion set is know to fit the E-Maxx front/rear diffs, the E-Revo front/rear diffs, the Rally VXL front diff, the Revo 3.3 front/rear diffs, the Slash 4X4 front diff, the Slayer Pro 4X4 front/rear diffs, the Summit 4X4 front/rear diffs, the Telluride 4X4 front diff, the T-Maxx 3.3 front/rear diffs, and the XO-1 front diff. 

- Precision machined helical spiral cut gears offer inherently greater strength and smooth operation than the factory bevel cut gears
- 29T/10T high torque gear ratio reduces torque twist 
- Construction: high carbon steel
- Nitride case hardened for a long-wearing gear surface and a tough core
- Compatible with the front or rear differential

- One (1) 29-tooth differential ring gear
- One (1) 10-tooth differential pinion gear

- Requires four (4) M2.5 flat head cap screws for installation
- Shimming may be required for optimal alignment and fit
- Hot Racing SPL10G05 high temp grease recommended
- Best to use with Hot Racing RVO11L06 or the ultimate choice RVO11MX01

- This item replaces Traxxas 5379X; please check your Traxxas manual to verify your model uses the 5379X gear set. The Hot Racing ring and pinion set is know to fit the E-Maxx front/rear diffs, the E-Revo front/rear diffs, the Rally VXL front diff, the Revo 3.3 front/rear diffs, the Slash 4X4 front diff, the Slayer Pro 4X4 front/rear diffs, the Summit 4X4 front/rear diffs, the Telluride 4X4 front diff, the T-Maxx 3.3 front/rear diffs, and the XO-1 front diff. 
- For six cell power Aluminum Outer Diff Case is a must; Revo and T-Maxx use RVO11L06, Summit use SUM11LH
- Not intended for on road operation if the differential is replaced with a spool or locker