4.56 Gears 2nd Gen DCLB Sport RD111 or RD121 locker for front?

Hey Folks,

Referencing the ARB Toyota Catalogue, it mentions RD111 or

$1,091 RD121 Air Locking Differential

RD121 for 05+ front locker depending on gear size. Putting in 4.56 and charts mentions RD111 for 3.93 and up, but RD121 for all 3.73 and down with a notation for all aftermarket R&P setups to go with RD121.

Reached out to local 4WP and ARB contact form on web for confirmation with no luck. I'm 99% sure I need the RD121 but just looking for some confirmation/assurance

Cheers in advance.

 

Look at east coast gear supply website. I have a rd121 and running 4:56 with a thick cut gear. I think you can run up to 4:88. However, if you want to run 5:29 you will need a rd111. Don't quote me on this, but I am pretty sure about the 4:88 part. Again call ECGS. They will hook you up.

https://eastcoastgearsupply.com/i-1...-ratio-nitro-front-rear-gear-package-kit.html

 

thanks homie