2018 F250 6.7 3.73 gears?

Shef

New member
Joined
Dec 7, 2012
Messages
28
Reaction score
0
Can Ford install 3.73 gears in the 3.55 electronic locking differential? I went to 37s and would like to change out the gears. Using a gear/tire size calculator, it said I would need to go to a 3.85 (I think) to get the stock ratio back. 3.73s would be close enough.

Thanks
 

alewis

Member
Joined
Oct 31, 2014
Messages
64
Reaction score
0
Can Ford install 3.73 gears in the 3.55 electronic locking differential? I went to 37s and would like to change out the gears. Using a gear/tire size calculator, it said I would need to go to a 3.85 (I think) to get the stock ratio back. 3.73s would be close enough.



Thanks



I’m new to this forum and plan to do the same thing with my 250. Have the HD tow package so I have the m275 rear. Actually already bought my Yukon 3.73 gears.

Should be a pretty good overall ratio with 37s
 

JHTX

New member
Joined
Jun 1, 2017
Messages
45
Reaction score
0
Location
Texas
Can Ford install 3.73 gears in the 3.55 electronic locking differential? I went to 37s and would like to change out the gears. Using a gear/tire size calculator, it said I would need to go to a 3.85 (I think) to get the stock ratio back. 3.73s would be close enough.



Thanks



I did it to my 2011 and don’t think you would have any issues. Got a lot of torque back with that upgrade.


Sent from my iPhone using Tapatalk
 

alewis

Member
Joined
Oct 31, 2014
Messages
64
Reaction score
0
Have a few hundred miles on my 37s and 3.73s now... still needs like 4.10s in my opinion

But I am not tuned yet though


Sent from my iPhone using Tapatalk
 

alewis

Member
Joined
Oct 31, 2014
Messages
64
Reaction score
0
The jump from 3.55 to 3.73 is not that drastic. 4.10 would be a better choice.



I absolutely agree

Unfortunately 3.73 is the lowest that is available for the m275 rear end


Sent from my iPhone using Tapatalk
 

Xxiled

New member
Joined
Apr 22, 2019
Messages
10
Reaction score
0
I think STRANGE is making 4:10 gears for the 10.5, not positive
 

Latest posts

Members online

Top