View Poll Results: What rear axle ratio with 5.0 V8?
3.31
25
17.36%
3.55
45
31.25%
3.73
74
51.39%
Voters: 144. You may not vote on this poll
What rear axle ratio to pair with the 5.0 motor...opinions
03-20-2017, 04:56 PM
#1
What rear axle ratio to pair with the 5.0 motor...opinions
II'm curious as to thoughts and opinions in regards to what axle ratio to pair with the 5.0 V8?
3.31
3.55
3.73
I will try to add a poll.
3.31
3.55
3.73
I will try to add a poll.
03-20-2017, 04:58 PM
#2
Senior Member
At least 3.55 or if towing alot 3.73
03-20-2017, 05:26 PM
#5
Senior Member
I have 3.31s because I travel highway alot and carry only 3-400lbs of tools and gear most the time. I lock out 6th gear if tow. Sometimes I wish I got 3.55 but 3.31 work for me 90% of the time and i have 1" taller tires too.
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tomjv (03-21-2017)
03-20-2017, 05:29 PM
#6
Senior Member
I had 3.73s on my 08 F150 Fx4 and I towed alot then. Even unloaded I only got about 14-15 on highway compared to my 2015 which gets 21-22 mpg says the lie o meter.
03-20-2017, 05:37 PM
#7
Official HTT Greeter
I have 3.55 and on semi-flat straight roads I get 22-23mpg cruising at 62mph, per the lie-o-meter. 21-22 by hand.
I would have preferred 3.73, but I'm pretty happy with what I've got.
I would have preferred 3.73, but I'm pretty happy with what I've got.
Trending Topics
03-20-2017, 05:44 PM
#8
The 3.31 and 3.55 differentials are the smaller 8.8" while the 3.73 is the larger 9.75".
Absolutely garbage that Ford offers the little grocery getter rear end with the 5.0L, when it offered the larger 9.75" rear end on the lower powered 5.4L in 2009 and 2010 (had one) and the 3.5L Ecoboost in 2011 - 2017.
The 3.5L Ecoboost is good for those who don't mind turbo lag, a bit less reliability, and are excited about getting the most power out of a small displacement V6.
Myself, and several others, wish to do our towing without boosted or blown engines and having more capable rear ends in all ratios should be offered or standard.
Leave the little 8.8" differentials for the little and low powered 2.7L Ecoboost V6 and 3.5L Normally aspired V6 engines that weren't designed to tow anything heavy.
I get around 21 - 22 mpg expressway, and 18.5 - 19.5 mpg mixed with my 3.73 locker. Don't drive strictly town/city. Can't image doing any better than that with a 3.31 or 3.55 differential.
Absolutely garbage that Ford offers the little grocery getter rear end with the 5.0L, when it offered the larger 9.75" rear end on the lower powered 5.4L in 2009 and 2010 (had one) and the 3.5L Ecoboost in 2011 - 2017.
The 3.5L Ecoboost is good for those who don't mind turbo lag, a bit less reliability, and are excited about getting the most power out of a small displacement V6.
Myself, and several others, wish to do our towing without boosted or blown engines and having more capable rear ends in all ratios should be offered or standard.
Leave the little 8.8" differentials for the little and low powered 2.7L Ecoboost V6 and 3.5L Normally aspired V6 engines that weren't designed to tow anything heavy.
I get around 21 - 22 mpg expressway, and 18.5 - 19.5 mpg mixed with my 3.73 locker. Don't drive strictly town/city. Can't image doing any better than that with a 3.31 or 3.55 differential.
Last edited by Mike Up; 03-20-2017 at 05:47 PM.
03-20-2017, 06:41 PM
#9
Senior Member
My experience with the 5.0 and the 3:55 in my 2012 would have me go 3:55 again. Great combo that had a lifetime lie o meter number of 19.3.
