Apologies for basically re-posting this, but the site wouldn't let me change my other thread title, and I was hoping to maybe get more of a response, but....

I have a 2015 F150 5.0 l and want to re-gear. I currently have 3.55 gears with the e-locker and the 8.8 rear axle (Super 8.8)

Per Ford Performance, the highest the gears go (for the 5.0 l w/ 8.8 axle) at this point is 3.73, however, they are working on a 4.09 with no current plans to develop 4.56 gears.

Does anyone know of any other companies that have or may be developing 4.56 gears for my current setup?

I've been checking the forums and haven't found what I'm looking for. Some of the performance sites are stating that the fitment is the same. Likewise, some of those same sites are selling the 4.56 gears but say nothing of the 'Super 8.8' axle and it's applications.

I don't want to just arbitrarily buy something and find out it's wrong due to bad advice.

Any help would be appreciated!

 

I've never heard of a super 8.8, I thought all 5.0's came with the 9.75 rear axle. My 13 has an ifs 8.8 in the front and the 9.75 in the rear.

 

Yukon is developing 4.56 as well as other ratios at least thats what they told me on phone as well as nitro gear. I have same truck 2015 5.0 4wd with super 8.8 on 37's and been trying to regear for close to year. The super 8.8 is different started for 2015 they changed angle of teeth and raised spline count

 

Am I correct in saying that the super 8.8 also comes in the new 2015 and up mustangs, I know that the Ford OEM 3.73 has same part number for mustang and F150. FR3Z4209B. So in theory, any gear for a mustang should work.

 

Yes 15 up mustangs same new rearend except irs vs truck straight axle so in theory yes nitro gear has 4.09 gears available for rear now would have to pair with 4.10 or 4.11 front