Traxxas TRX-4 Spool

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Traxxas TRX-4 Spool
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The Traxxas TRX-4 Spool gives TRX-4 owners the option to remove the locking differentials, and replace one or both with this spool. This will provide a full time locked differential, for reduced complexity and increased crawling performance. Package includes one spool and hardware.

This product was added to our catalog on January 30, 2018

Alfredo Montero
Verified Owner
Thursday, Jun 27 2019 (about 4 years ago)
Traxxas TRX-4 Spool
Good part to have with you if you don't want to use the differential lockers. easy to install. I have used it for a couple of months and it has not broken.
mc
Verified Owner
Monday, Nov 16 2020 (about 3 years ago)
Traxxas TRX-4 Spool
if you own a trx4 this is the only way to lock your diffs. the stock traxxas micro servos will strip themselfs out due to not having any end point adjustment in the radio, and nothing is worse then making it 99% up a climb just to roll and flip down the hill just because your diff unlocked. i have installed these in the front axles on two trx4s to replace the failed micro shift servos. also gives you the option to remove the added weight of the diff lock servos. i will be buying two more.
Matthew H
Verified Owner
Thursday, Aug 11 2022 (about a year ago)
Traxxas TRX-4 Spool
Worked as it should. Easy to install and has handled all the Hard crawling with no issues.
Craig Triacca
Verified Owner
Monday, Mar 7 2022 (about 2 years ago)
Traxxas TRX-4 Spool
have not used it yet waiting for another traxxas micro servo to go out then i will be installing it.otherwise im sure it will serve its purpose well