Parts/Drivetrain/Axles & axle parts/ST Racing Concepts Brass Rear Inner Portal Drive Housing for Traxxas TRX-4 (Black)
ST Racing Concepts Brass Rear Inner Portal Drive Housing for Traxxas TRX-4 (Black)
ST Racing Concepts

ST Racing Concepts Brass Rear Inner Portal Drive Housing for Traxxas TRX-4 (Black)

Part # SPTST8253BR4.0(1)
Where to buy
$25.88
AMain Hobbies
Seen Oct 12, 2026
$25.88Buy
Prices are as last seen at the store; stock is not tracked.

About this part

The STRC Traxxas TRX-4 Brass Rear Inner Portal Drive Housing is a machined brass option that adds 59 grams of unsprung weight to your TRX-4 for improved stability. Package includes two brass rear inner drive housings.
CA Residents Prop 65 Warning WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov Details...

Reviews4.0 · 1 review

Pete DeVriesVerified owneron ST Racing Concepts Brass Rear Inner Portal Drive Housing for Traxxas TRX-4

Nice quality brass product, however I already had all of the Samix brass axle/portal parts and these didnt mate up perfectly with the Samix brass outer portal covers. I had to dremel a few areas on the small inner lip to get the to sit together flush. Not sure which company was a little bit off, but either way with a little bit of work I got them to fit nicely, and now i have zero plastic on my axles. Yeah Racing alloy housings and everything else is brass. So much weight down low the performance is far better than stock..

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