gato
Well-Known Member
- Joined
- Apr 4, 2021
- Threads
- 20
- Messages
- 1,251
- Reaction score
- 1,938
- Location
- New England
- Vehicle(s)
- 2021 JLUR
With the 8-speed auto, 4.10 Rubi gears, lighter (e.g. KO2s) 37s and high cruise speeds, I see more downsides to regearing than upsides.
The gearing teeth are smaller and can handles less torque. You may void the warranty for things like the infamous locker sensor failure. Jeep is slightly noisier due to higher RPM if you are cruising at 75MPH.
At the other end of the spectrum, manual transmission, heavy 37s, Sport/Sahara, lower (60MPH) cruising speeds, a regear may be advantageous.
For me, if I trusted my axles to handle it, I'd have no problem running 39x13.5 BFGs with the Rubi 4.10 and A8. But everyone's driving style and preferences are different. So put the tires on, see how you like it before making any decisions. There is no set answer.
The gearing teeth are smaller and can handles less torque. You may void the warranty for things like the infamous locker sensor failure. Jeep is slightly noisier due to higher RPM if you are cruising at 75MPH.
At the other end of the spectrum, manual transmission, heavy 37s, Sport/Sahara, lower (60MPH) cruising speeds, a regear may be advantageous.
For me, if I trusted my axles to handle it, I'd have no problem running 39x13.5 BFGs with the Rubi 4.10 and A8. But everyone's driving style and preferences are different. So put the tires on, see how you like it before making any decisions. There is no set answer.
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