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Read articles →This is a step-by-step DIY install of Bro-tek aluminum wheel spacers on an L3901, part of an owner's ongoing modification series. It covers jacking up the tractor, torque specs (150/160 ft-lbs rear, 110 ft-lbs front), Loctite use, socket sizes, and a front-vs-rear width comparison, plus the owner's reasoning on why he chose 3-inch rear and 1.5-inch front spacers over wider options. Best for owners planning the same upgrade.
An individual Kubota L3901 owner documenting his own tractor modifications, with no apparent sponsorship from the spacer brand he reviews.
The spacer bolts torque to 150 foot-pounds, then the factory Kubota nuts with lock washers are torqued to 160 foot-pounds using a crisscross pattern.
The front spacers are torqued to 110 foot-pounds, first snugged to about 60 foot-pounds in a crisscross pattern, then brought up to full torque.
He worried a 5-inch spacer could strain wheel bearings and make the tractor too wide for cutting trails in the woods, so he picked narrower sizes.
Yes, gray anti-seize works if you do not have blue Loctite, since blue Loctite acts mainly as a lubricant rather than a strong locking agent.
