New Items
TRX-3978 Traxxas Differential Carrier, Heavy Duty with Gaskets, Bushings & Washer
SKU 3978
$4.25
Heavy-duty differential carrier rebuild kit for many Traxxas vehicles
In stock
1
Save this product for later
TRX-3978 Traxxas Differential Carrier, Heavy Duty with Gaskets, Bushings & Washer
Product Details
UPC: 020334397805
Brand: TRX - Traxxas
Tags: 3978, TRA3978, TRX-3978, Traxxas differential carrier, heavy duty differential carrier, differential rebuild, XO-1 differential, E-Maxx differential, differential gasket, x-ring gasket
The 3978 is the heavy-duty differential carrier assembly for several Traxxas platforms, packaged with the associated sealing and rebuild hardware. Includes two x-ring gaskets, one ring gear gasket, two bushings, and a 6×10×0.5 mm thrust washer.
What’s Included
- (1×) Heavy-duty differential carrier
- (2×) X-ring gasket
- (1×) Ring gear gasket
- (2×) Bushing
- (1×) 6×10×0.5 mm thrust washer
Fitment Note
Fits many Traxxas vehicles using this differential carrier, including the XO-1 Supercar and E-Maxx platform. Consult your vehicle’s manual or parts diagram to verify fitment before ordering.
Key Features
- Heavy-duty differential carrier — upgraded strength over the standard carrier
- Includes full sealing hardware for a clean rebuild: x-ring gaskets, ring gear gasket, and bushings
- 6×10×0.5 mm thrust washer included
| Spec | Value |
|---|---|
| Gaskets | (2×) X-ring gasket, (1×) ring gear gasket |
| Bushings | (2×) included |
| Washer | 6×10×0.5 mm thrust washer |
Frequently Asked Questions
- What vehicles does this fit?
- This differential carrier fits many Traxxas vehicles using this carrier design, including the XO-1 Supercar and E-Maxx. Consult your vehicle’s parts diagram to confirm fitment before ordering.
- Can I order online and pick up in Greeley?
- Yes — shop online and ship to your door, or choose in-store pickup at JackWagon R/C & Hobbies in Greeley, CO.
Reference Numbers
Traxxas PN: 3978 · Retailer PN: TRA3978 · JackWagon SKU: TRX-3978
You May Also Like
TRX-7750X Traxxas Driveshaft, steel constant-velocity (heavy duty, shaft only, 160mm) (1) (replacing #7750 also requires #7751X, #7754X and #7768, #7768R, or #7768G)
TRX-7750X Traxxas Driveshaft, steel constant-velocity (heavy duty, shaft only, 160mm) (1) (replacing #7750 also requires #7751X, #7754X and #7768, #7768R, or #7768G)
Traxxas Driveshaft, steel constant-velocity (heavy duty, shaft only, 160mm) (1)
$16.00
TRX-3785 Traxxas Motor, Titan 12T (12-Turn, 550 Size, Brushed)
TRX-3785 Traxxas Motor, Titan 12T (12-Turn, 550 Size, Brushed)
Stock brushed motor for Traxxas brushed vehicles — 550 size with integrated cooling fan
$25.95
TRX-2250 Traxxas High-Torque 330 Coreless Digital Metal-Gear Waterproof Servo
TRX-2250 Traxxas High-Torque 330 Coreless Digital Metal-Gear Waterproof Servo
Traxxas High-Torque 330 Servo — 330 oz-in @ 6V / Coreless Motor / All-Metal Gears / Aluminum Case
$79.95
TRX-3768 Traxxas Shock Spring Retainers, Upper & Lower (2) / Piston Head Set (2-Hole (2) / 3-Hole (2))
TRX-3768 Traxxas Shock Spring Retainers, Upper & Lower (2) / Piston Head Set (2-Hole (2) / 3-Hole (2))
Replacement spring retainers and piston heads for Traxxas Ultra Shocks
$3.00
TRX-7732 Traxxas Caster blocks (c-hubs), left & right
TRX-7732 Traxxas Caster blocks (c-hubs), left & right
Traxxas Caster blocks (c-hubs), left & right
$6.00
Powered by Lightspeed
Display prices in:USD
