Equivalent 17" tire spare diameter for 18" take-off wheels and tires

Front Eaton E-Locker Fitment Confirmed For 4G Tacoma!

Kristian@74w · 2025-10-05T12:57:10+00:00

Hey, guys! Been in Rubicon prep mode for the past few weeks... One upgrade that was high on the list was a front locker. I have an Off-Road, so the rear came with the factory locker. For more technical trail rides, I wanted to add something in the front. I looked into a few options, but the Eaton was available the fastest and didn't require additional mods (like an air locker, for example). We dropped the diff in the driveway (definitely harder to do on the ground) and took it to Bent Motorsports to have them install the actual e-locker inside. They got it done quick and we got the diff back home and reinstalled everything. Currently figuring out how to best run the leads and connect power to the locker. I'm thinking we go straight to my switch panel, but we'll see how that goes. Quick FYI... to the best of my knowledge, the new gen Toyotas all use the same 8.0 IFS front diff seen on previous generations. This is great news, because they didn't have to develop an entirely new setup. So if you're looking for lockers... check out Eaton. https://www.eaton.com/us/en-us/catalog/differentials/eaton-elocker-differential.html

jgc731

New member

Aug 28, 2024

My stock wheels and spare are 245/70/17. I since upgraded to current gen Sequoia TRD Off Road 18" wheels with 265/70/18. What would be the equivalent tire I can get to run the same diameter as my new wheels in case of emergency and I need to use the spare? Also would it fit in the original spare location?

Thanks in advance.

Equivalent 17" tire spare diameter for 18" take-off wheels and tires

jgc731

New member

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