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Ships within 48 hours · Estimated delivery Jul 31 - Aug 5
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Traxxas 3948X 18T Pinion Gear 32P Heavy Duty 3mm Shaft RC UpgradeDurable and precision machined pinion gear designed for reliable power transfer and long service life. Ideal for fine tuning performance, allowing you to balance acceleration and top speed for various driving conditions. Features 18 tooth pinion gear: Helps optimise speed and torque balance 32 pitch compatibility: Works with standard 32P spur gears Hardened steel construction: Provides extended durability and wear resistance 3mm shaft fitment:
Durable and precision-machined pinion gear designed for reliable power transfer and long service life. Ideal for fine-tuning performance, allowing you to balance acceleration and top speed for various driving conditions.
Features
- 18-tooth pinion gear: Helps optimise speed and torque balance
- 32-pitch compatibility: Works with standard 32P spur gears
- Hardened steel construction: Provides extended durability and wear resistance
- 3mm shaft fitment: Designed for common motor shaft sizes
- Includes set screw: Ensures secure and stable installation
- Performance tuning: Allows adjustment of gearing for different terrains and setups
Specifications
- Part Number: 3948X
- Tooth Count: 18T
- Pitch: 32P
- Material: Hardened steel
- Shaft Compatibility: 3mm motor shaft
Includes
- 1 x 18T 32P heavy-duty pinion gear
- 1 x Set screw
Important Notes
- Compatible with Rustler 4X4 VXL Rustler 4X4 Slash 4X4 Ultimate Slash 4X4 VXL Stampede 4X4 Stampede 4X4 VXL Stampede 4X4 kit TRX-4 series TRX-6 models
- Always set correct gear mesh to prevent premature wear
- Refer to your model manual for recommended gearing setups
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
4.7 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 5
Great no show socks
Size: Small, Color: (725) Oxford Brown / Oxford Brown / Black
Very comfortable and perfect fit for my small feet. I love the full coverage sock feel with a totally no show sock.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
★★★★★ 5
Great no shows for people with larger feet
Size: Large, Color: (001) Black / Black / Castlerock
Some of my favorite socks!! Great quality, fit, and material. I love that they don't slip down in my shoes, especially considering I have larger feet. I also love that Under Armour offers larger sizes in their socks considering everyone in our household has much larger feet than others.
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Reviewed in the United States on May 3, 2026
★★★★★ 5
Best liner socks EVER
Size: Medium, Color: (348) Silica Green / Silica Green / Hydro Green
I have them in every color and used to get them from Sams, but they stopped selling them and I was lucky to find them on Amazon. Got all colors again. They stay, it's all I'm gonna say! And don't show in any of my tennis shoes. Absolutely love them and wear them until they get holes. They last a LONG time too. They're on the thin side and my foot loves them because they tend to get hot. There's no shrinking, they wash great with exception of the white ones I couldn't manage to keep white - they turned a bit greyish.
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Reviewed in the United States on January 4, 2026
★★★★★ 5
Great socks
Size: Medium, Color: Pink - 647
Well-made and comfortable to wear. Great for golf and other outdoor activities. Like them because they do not show above shoes.
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Reviewed in the United States on April 19, 2026
★★★★★ 5
These ACTUALLY stay put all day long - I was skeptical, but am so glad I took a chance on these
Size: Medium, Color: (014) Halo Gray / Halo Gray / Castlerock
I was so skeptical about whether these would stay on my feet all day without sliding down into my shoe - I’ve tried so many socks in the past with the silicone strip on the heel which failed.
I’ve owned these for a couple months now and they have never slipped down - they stay put all day! I love the variety of colors to choose from, and the value per pack is great since six pairs come per pack (I thought it was only three when I first purchased and was pleasantly surprised by the additional pairs). They also have perfect thickness - not too warm to wear during the summer months with sneakers; I live in a tropical climate, though, so I’m not sure how they will do in cooler climates. I’ve washed each pair once or twice and the color and quality of the silicone has stayed so far (knock on wood).
Overall: high recommend based on my experience so far!
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Reviewed in the United States on September 13, 2025
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