Upgrades that replace Traxxas #3978

1 aftermarket part sold as a replacement for Traxxas part #3978, 1 in stock now. Each card quotes the maker’s own fitment note; check it against your model before ordering.

RVO11X06

Hot Racing E-Maxx E-Revo XO-1 Aluminum Differential Carrier Case

$28.99In stock

“Replaces TRA 3978 differential carrier” — Hot Racing’s description

Traxxas 1:10 4-Tec 2.0 ElectricTraxxas 1:10 4-Tec 3.0 ElectricTraxxas 1:10 Jato 4x4Traxxas E-Maxx 3908 BrushlessTraxxas E-Revo 5603 5605 5608Traxxas Hoss 3S

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